US5794128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and processes for realistic simulation of wireless information transport systems
Assignee: United States Department of the Army
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Filing: 1995-09-20
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Granted: 1998-08-11
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Expires: 2015-09-20
Abstract
Abstract Realistic models and processes for simulation of wireless information transport systems are provided which replicate all time and frequency dynamics effects on stationary and mobile communications systems. The preferred embodiment is a realsitic modeling apparatus for simulation of wireless information transport systems comprising a data entry module, a communications traffic selection module, a driver database, and voice and data input modules furnishing a simulation input to a network simulation module. The network simulation module having communications realism effects, a DIS structure, a channel error-burst model to transmit random errors, and a multipath modeling module to integrate deterministic and stochastic effects. The multipath modeling module, having a digital radio model and a Terrain-Integrated Rough Earth Model, influences the simulation inputs forming a multipath output, which is adjusted by voice and data inputs to provide a realistic, real-time simulation output signal to a display module portraying the simulated communications network and link connectivity. The network simulation module, channel error-burst model and multipath modeling module comprise a number of computer programs. A method for realistic simulation of wireless information transport systems in real-time utilizing modeling techniques and computer programs is also disclosed.
Inventors
- 👤 Kenneth H. Brockel
- 👤 Victor J. Procopio, Jr.
- 👤 Paul A. Major
- 👤 Arvids Vigants
- 👤 Joseph Pasirstein
- 👤 Richard W. Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:52
CPC Classifications
H; H04; H04B; H04B17/00; H04B17/30; H04B17/391; H04B17/3912
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
361 words
A realistic modeling apparatus for simulation of wireless information transport systems comprising: a data loading means enters a plurality of data inputs and a plurality of communications performance characteristics to a communications traffic selection means, said communications traffic selection means having a plurality of command databases, a plurality of mission thread databases and a traffic scenario database; a plurality of communications protocol parameter input selections made from said communications traffic selection means provides a selection means database output to a driver database; said driver database converts said selection means database output into a plurality of statistical data forming a driver data output, said driver database output being transmitted to a network data input module connected to a network simulation means; a plurality of voice inputs from an operator are sent to a voice input module, said voice input module and said network data input module providing a plurality of simulation inputs to said network simulation means; said network simulation means, being rule-driven and multi-network capable, simulates a plurality of stationary and moving digitized communications platforms; said network simulation means having access to a multipath modeling means, said multipath modeling means, having an ITEMM software program and a digital radio model; said ITEMM software program integrates a plurality of deterministic communications effects and a plurality of stochastic communications effects with said plurality of stationary and moving digitized platforms; said multipath modeling means cooperates with said network simulation means to influence said plurality of simulation inputs, converting said plurality of simulation inputs and said plurality of stationary and moving digitized platforms into a multipath output; said digital radio model transmits said multipath output to a data terminal port, said data terminal port adjusts said multipath output and transmits a data adjusted output to said multipath modeling means; said digital radio model transmits said multipath output to a radio control port, said radio control port adjusts said multipath output and transmits a voice adjusted output to said multipath modeling means; a display means; and said multipath modeling means combines said data adjusted output and said voice adjusted output with said multipath output to provide a realistic, real-time simulation output signal to said display means.
Claim 2
Dependent Claim
361 words
A realistic modeling apparatus for simulation of wireless information transport systems comprising: a data loading means enters a plurality of data inputs and a plurality of communications performance characteristics to a communications traffic selection means, said communications traffic selection means having a plurality of command databases, a plurality of mission thread databases and a traffic scenario database; a plurality of communications protocol parameter input selections made from said communications traffic selection means provides a selection means database output to a driver database; said driver database converts said selection means database output into a plurality of statistical data forming a driver data output, said driver database output being transmitted to a network data input module connected to a network simulation means; a plurality of voice inputs from an operator are sent to a voice input module, said voice input module and said network data input module providing a plurality of simulation inputs to said network simulation means; said network simulation means, being rule-driven and multi-network capable, simulates a plurality of stationary and moving digitized communications platforms; said network simulation means having access to a multipath modeling means, said multipath modeling means, having an ITEMM software program and a digital radio model; said ITEMM software program integrates a plurality of deterministic communications effects and a plurality of stochastic communications effects with said plurality of stationary and moving digitized platforms; said multipath modeling means cooperates with said network simulation means to influence said plurality of simulation inputs, converting said plurality of simulation inputs and said plurality of stationary and moving digitized platforms into a multipath output; said digital radio model transmits said multipath output to a data terminal port, said data terminal port adjusts said multipath output and transmits a data adjusted output to said multipath modeling means; said digital radio model transmits said multipath output to a radio control port, said radio control port adjusts said multipath output and transmits a voice adjusted output to said multipath modeling means; a display means; and said multipath modeling means combines said data adjusted output and said voice adjusted output with said multipath output to provide a realistic, real-time simulation output signal to said display means.
Claim 3
Dependent Claim
33 words
The realistic modeling apparatus for simulation of wireless information transport systems as recited in claim 1, further comprising said voice input module receiving a plurality of voice inputs from a plurality of operators.
Claim 4
Dependent Claim
51 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 2, further comprising: said multipath modeling means providing a terrain map background displayed on said display means; and said multipath modeling means displays said plurality of stationary and moving digitized communications platforms on said terrain map background.
Claim 5
Dependent Claim
80 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 3, further comprising: said network simulation means simulates a plurality of simultaneous voice, data and imagery information exchanges; said plurality of simultaneous voice, data and imagery information exchanges being at intranetwork and internetwork levels among said plurality of stationary and moving digitized communications platforms; and said network simulation means combines a plurality of circuit, packet and asynchronus transfer mode switches and a plurality of net radios.
Claim 6
Dependent Claim
52 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 4, further comprising: said network simulation means permits the operator to modify said selection means database output and said driver data output based on the possible scenarios encountered during simulation; and said network simulation means is plug-and-play compatible.
Claim 7
Dependent Claim
38 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 5, wherein said network simulation means is configured to operate at a real-time speed, a faster than real-time speed and a near real-time speed.
Claim 8
Dependent Claim
65 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 6, further comprising: said network simulation means having a Distributed Interactive Simulation (DIS) Interface structure; said network simulation means having a DIS network for interoperability among said plurality of operators during simulation; and said DIS network complying with a plurality of underlying DIS performance requirements and a plurality of DIS protocols.
Claim 9
Dependent Claim
83 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 7, further comprising: said network simulation means provides a plurality of simulation outputs; said plurality of simulation outputs include a plurality of network, behavior and grade of service outputs; and said plurality of simulation outputs further comprising a plurality of message transmission delays, a plurality of network-access delays, a plurality of intranetwork routing data, a plurality of internetwork routing data and a graphic display on said computer display means.
Claim 10
Dependent Claim
77 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 8, further comprising: said network simulation means providing a plurality of realistic communications effects for both stationary and on-the-move voice, data and imagery communications; and said plurality of realistic communications effects includes a plurality of terrain error bursts, a plurality of fading error bursts in both fixed and hopping frequencies and a plurality of combined error bursts and error burst impacts with countermeasures.
Claim 11
Dependent Claim
77 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 9, further comprising: said multipath modeling means having a channel error-burst model; said channel error burst model providing a plurality of Received Signal Strength (RSS) effects caused by error bursts in the digital bit stream due to both short and long-term variations of RSS; and said plurality of RSS effects includes a plurality of time rate RSS variations which increase with vehicle speed.
Claim 12
Dependent Claim
49 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 10, further comprising said network simulation means having a means for simulating radio attributes, a means for simulating countermeasure signals, a means for simulating platform environment, a propagation variability means and a noise variability means.
Claim 13
Dependent Claim
100 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 11, wherein: said multipath modeling means computes in real-time a plurality of error-burst effects, a plurality of link margins and a plurality of terrain-shadowing effects combined with a plurality of multipath effects; said ITEMM software program of the multipath modeling means simulates a plurality of real-time, link-level communications impairments for voice or date bytes transported over said digital radio model; and said plurality of real-time, link-level communications impairments include error bursts, signal fades, signal propagation interference due to terrain shadowing, destructive multipath effects and moving platforms.
Claim 14
Dependent Claim
30 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 12, further comprising said display means displays a pictorial representation of link connectivity to the operator.
Claim 15
Dependent Claim
36 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 13, wherein said network simulation means, said channel error-burst model, said digital radio model and said multipath modeling means are computer programs.
Claim 16
Dependent Claim
39 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 14, wherein: said network simulation means is a Real-Time Communications Network Simulator (RTCNS); and said multipath modeling means is an Integrated Terrain-Environment Multipath Model (ITEMM).
Claim 17
Dependent Claim
33 words
The realistic modeling apparatus for simulation of wireless information transport systems recited in claim 3, wherein said terrain map background is provided by a Terrain-Integrated Rough Earth Model of said multipath modeling means.
Claim 18
Independent Claim
376 words
A method for realistic simulation of wireless information transport systems comprising the steps of: entering a plurality of data inputs and a plurality of network performance characteristics into a communications traffic selection means, said communications traffic selection means having a plurality of command databases, a plurality of mission thread databases and a traffic scenario database; making a plurality of communications protocol parameter input selections from said communications traffic selection means; providing a selection means database output from said communications traffic selection means database to a driver database; converting said selection means database output in said driver database into a plurality of statistical data, and transmitting a driver database output from said driver database to a network data input module connected to a network simulation means; inputting a plurality of voice information from an operator to a voice input module, said voice input module-and said network data input module providing a plurality of simulation inputs to said network simulation means; said network simulation means, being rule-driven and multi-network capable, simulates a plurality of stationary and moving digitized communications platforms, said network simulation means having access to a multipath modeling means, said multipath modeling means having an ITEMM software program and a digital radio model; converting said plurality of simulation inputs and said plurality of stationary and moving digitized communications platforms into a multipath output, within said ITEMM software program, by integrating a plurality of deterministic communications effects and a plurality of stochastic communications effects with said plurality of stationary and moving digitized platforms, said network simulation means cooperating with said multipath modeling means; transmitting said multipath output from said digital radio model to a data terminal port; adjusting said multipath output in said data terminal port and transmitting a data adjusted output to said multipath modeling means; transmitting said multipath output from said digital radio model to a radio control port; adjusting said multipath output in said radio control port and transmitting a voice adjusted output to said multipath modeling means; connecting said network simulation means and said multipath modeling means to a display means; and combining said data adjusted output and said voice adjusted output with said multipath output in said multipath modeling means to provide a realistic, real-time simulation output signal to said display means.
Claim 19
Independent Claim
376 words
A method for realistic simulation of wireless information transport systems comprising the steps of: entering a plurality of data inputs and a plurality of network performance characteristics into a communications traffic selection means, said communications traffic selection means having a plurality of command databases, a plurality of mission thread databases and a traffic scenario database; making a plurality of communications protocol parameter input selections from said communications traffic selection means; providing a selection means database output from said communications traffic selection means database to a driver database; converting said selection means database output in said driver database into a plurality of statistical data, and transmitting a driver database output from said driver database to a network data input module connected to a network simulation means; inputting a plurality of voice information from an operator to a voice input module, said voice input module-and said network data input module providing a plurality of simulation inputs to said network simulation means; said network simulation means, being rule-driven and multi-network capable, simulates a plurality of stationary and moving digitized communications platforms, said network simulation means having access to a multipath modeling means, said multipath modeling means having an ITEMM software program and a digital radio model; converting said plurality of simulation inputs and said plurality of stationary and moving digitized communications platforms into a multipath output, within said ITEMM software program, by integrating a plurality of deterministic communications effects and a plurality of stochastic communications effects with said plurality of stationary and moving digitized platforms, said network simulation means cooperating with said multipath modeling means; transmitting said multipath output from said digital radio model to a data terminal port; adjusting said multipath output in said data terminal port and transmitting a data adjusted output to said multipath modeling means; transmitting said multipath output from said digital radio model to a radio control port; adjusting said multipath output in said radio control port and transmitting a voice adjusted output to said multipath modeling means; connecting said network simulation means and said multipath modeling means to a display means; and combining said data adjusted output and said voice adjusted output with said multipath output in said multipath modeling means to provide a realistic, real-time simulation output signal to said display means.
Claim 20
Dependent Claim
32 words
The method for realistic simulation of wireless information transport systems recited in claim 17, further comprising receiving a plurality of voice inputs in said voice input module from a plurality of operators.
Claim 21
Dependent Claim
51 words
The method for realistic simulation of wireless information transport systems recited in claim 18, further comprising: displaying a terrain map background from said multipath modeling means on said display means; and displaying said plurality of stationary and moving digitized communications platforms on said terrain map background of the multipath modeling means.
Claim 22
Dependent Claim
80 words
The method for realistic simulation of wireless information transport systems recited in claim 19, further comprising: simulating a plurality of simultaneous voice, data and imagery information exchanges in said network simulation means; said plurality of simultaneous voice, data and imagery information exchanges being at intranetwork and internetwork levels among said plurality of stationary and moving digitized communications platforms; and said network simulation means combining a plurality of circuit, packet and asynchronus transfer mode switches and a plurality of net radios.
Claim 23
Dependent Claim
52 words
The method for realistic simulation of wireless information transport systems recited in claim 20, further comprising: permitting the operator to modify said selection means database output and said driver data output, using said network simulation means, based on the possible scenarios encountered during simulation; and said network simulation means is plug-and-play compatible.
Claim 24
Dependent Claim
37 words
The method for realistic simulation of wireless information transport systems recited in claim 21, further comprising configuring said network simulation means to operate at a real-time speed, a faster than real-time speed and a near real-time speed.
Claim 25
Dependent Claim
64 words
The method for realistic simulation of wireless information transport systems recited in claim 22, further comprising: said network simulation means having a Distributed Interactive Simulation (DIS) Interface structure; said network simulation means having a DIS network for interoperability among said plurality of operators during simulation; and said DIS network complying with a plurality of underlying DIS performance requirements and a plurality of DIS protocols.
Claim 26
Dependent Claim
83 words
The method for realistic simulation of wireless information transport systems recited in claim 23, further comprising: providing a plurality of simulation outputs from said network simulation means; said plurality of simulation outputs include a plurality of network, behavior and grade of service outputs; and said plurality of simulation outputs further comprising a plurality of message transmission delays, a plurality of network-access delays, a plurality of intranetwork routing data, a plurality of internetwork routing data and a graphic display on said computer display means.
Claim 27
Dependent Claim
77 words
The method for realistic simulation of wireless information transport systems recited in claim 24, further comprising: providing a plurality of realistic communications effects from said network simulation means for both stationary and on-the-move voice, data and imagery communications; and said plurality of realistic communications effects includes a plurality of terrain error bursts, a plurality of fading error bursts in both fixed and hopping frequencies and a plurality of combined error bursts and error burst impacts with countermeasures.
Claim 28
Dependent Claim
72 words
The method for realistic simulation of wireless information transport systems recited in claim 25, further comprising: providing a plurality of Received Signal Strength (RSS) effects caused by error bursts in the digital bit stream due to both short and long-term variations of RSS from a channel error-burst model of said multipath modeling means; and said plurality of RSS effects includes a plurality of time rate RSS variations which increase with vehicle speed.
Claim 29
Dependent Claim
48 words
The method for realistic simulation of wireless information transport systems recited in claim 26, further comprising said network simulation means having a means for simulating radio attributes, a means for simulating countermeasure signals, a means for simulating platform environment, a propagation variability means and a noise variability means.
Claim 30
Dependent Claim
97 words
The method for realistic simulation of wireless information transport systems recited in claim 27, further comprising: computing a plurality of error-burst effects, a plurality of link margins and a plurality of terrain-shadowing effects combined with a plurality of multipath effects in real-time in said multipath modeling means; simulating within said ITEMM software program a plurality of real-time, link-level communications impairments for voice or data bytes transported over said digital radio model; and said plurality of real-time, link-level communications impairments include error bursts, signal fades, signal propagation interference due to terrain shadowing, destructive multipath effects and moving platforms.
Claim 31
Dependent Claim
30 words
The method for realistic simulation of wireless information transport systems recited in claim 28, further comprising displaying a pictorial representation of link connectivity to the operator on said display means.
Claim 32
Dependent Claim
35 words
The method for realistic simulation of wireless information transport systems recited in claim 29, wherein said network simulation means, said channel error-burst model, said digital radio model and said multipath modeling means are computer programs.
Claim 33
Dependent Claim
38 words
The method for realistic simulation of wireless information transport systems recited in claim 30, wherein said network simulation means is a Real-Time Communications Network Simulator (RTCNS); and said multipath modeling means is an Integrated Terrain-Environment Multipath Model (ITEMM).
Claim 34
Dependent Claim
32 words
The method for realistic simulation of wireless information transport systems recited in claim 19, wherein said terrain map background is provided by a Terrain-Integrated Rough Earth Model of said multipath modeling means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-10 | 2002-02-09 | 2002-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-10 | 2006-02-09 | 2006-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-10 | 2010-02-09 | 2010-08-11 | $7700.00 | Window Closed / Lapsed |