US3741502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long range missile programmer
Assignee: United States Department of the Navy
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Filing: 1961-05-15
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Granted: 1973-06-26
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Expires: 1981-05-15
Abstract
Abstract 1. In an apparatus for controlling the flight trajectory of a guided missile, second order programming computer and smoother means for manipulating input perameters in accordance with the relations AND EI Et + k(t) (Dr-Dm) Et + F(d) WHERE EO IS THE OUTPUT DATA FROM SAID COMPUTER, EI IS THE INPUT DATA TO SAID COMPUTER, EO IS THE FIRST DERIVATIVE OF EO omega N IS THE GAIN SENSITIVITY FACTOR OF THE COMPUTER, ET is the elevation of the target, sigma IS A CONSTANT, P is the present time, C is the time of guidance initiation, K(T) IS A TIME VARYING PROGRAMMING FACTOR AND F(d) is the output of an input driving function generator, a first input source of voltage for said second order programming computer means relating to ET, driving function generator means F(d) electrically coupled to and directed as a second input to said second order programming computer means, said driving function generator means comprising a climb-cruise phase generator in series with a terminal phase generator, means within said climb-cruise phase generator to produce an output function
Inventors
- 👤 I Schroader
- 👤 M Hosea
- 👤 V Caggiano
- 👤 L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:15
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
28 words
In an apparatus for controlling the flight trajectory of a guided missile, second order programming computer and smoother means for manipulating input parameters in accordance with the relations
Claim 2
Dependent Claim
28 words
In an apparatus for controlling the flight trajectory of a guided missile, second order programming computer and smoother means for manipulating input parameters in accordance with the relations
Claim 3
Dependent Claim
52 words
The apparatus of claim 1 including means to vary the gain sensitivity factor omega n of the second order computer means in accordance with the relation omega n c/(Tp1 + ) of ) where TPI is the time remaining until intercept of the target by the missile, and c is a constant
Claim 4
Dependent Claim
35 words
The apparatus of claim 1 including means to disconnect the output F(dsaid driving function generator means from the input of said second order computer means to enable a medium range flight trajectory to be programmed.
Claim 5
Dependent Claim
51 words
The apparatus of claim 1 including means to delay terminal phase initiation until DT - DM 100 (DT-DM) where DT is the slant range to the target DM is the slant range to the missile, DT is the first derivative of DT and DM is the first derivative of DM .
Claim 6
Dependent Claim
26 words
The apparatus of claim 1 including means to limit the minimum value of the computer means gain sensitivity factor omega n to a value of 0.1.
Claim 7
Dependent Claim
27 words
The apparatus of a claim 2 including means to limit the minimum value of the computer means gain sensitivity factor to a value of omega n 0.1.
Claim 8
Dependent Claim
18 words
The apparatus of claim 2 wherein the value of c is in the range from 3.5 to 4.5.
Claim 9
Dependent Claim
18 words
The apparatus of claim 6 wherein the value of c is in the range from 3.5 to 4.5.
Claim 10
Dependent Claim
52 words
The apparatus of claim 6 including means to delay terminal phase initiation until DT - DM 100 (DT - DM) where DT is the slant range to the target, DM is the slant range to the missile, DT is the first derivative of DT, and DM is the first derivative of DM
Claim 11
Dependent Claim
129 words
In a missile programming system utilizing a second order computing device, driving function generator means electrically connected to the input of said second order computing device whose electrical output is directed as an input to said second order computing device, said driving function generator means coMprising a climb-cruise phase generator in series with a terminal phase generator, means within said terminal phase generator to cause said terminal phase generator to act merely as a pass through device for the signal generated by said climb-cruise generator during the climb-cruise phase, means within said terminal phase generator to render ineffective upon terminal phase initiation the input from said climb-cruise phase generator to said terminal phase generator, and means for effecting a smooth transition from said climb-cruise phase to said terminal phase.
Claim 12
Dependent Claim
129 words
In a missile programming system utilizing a second order computing device, driving function generator means electrically connected to the input of said second order computing device whose electrical output is directed as an input to said second order computing device, said driving function generator means coMprising a climb-cruise phase generator in series with a terminal phase generator, means within said terminal phase generator to cause said terminal phase generator to act merely as a pass through device for the signal generated by said climb-cruise generator during the climb-cruise phase, means within said terminal phase generator to render ineffective upon terminal phase initiation the input from said climb-cruise phase generator to said terminal phase generator, and means for effecting a smooth transition from said climb-cruise phase to said terminal phase.
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |