Pulse-compressor system

Claim 1

A system for compressing a frequency-modulated input pulse signal, comprising means for separating the input signal into a plurality of frequency component signals; means passing each component signal through a related dispersive medium to compress the component signal in a predetermined compression ratio; and means for recombining the compressed component signals into an output pulse signal which is a compressed replica of the input signal.

Claim 2

A system for compressing a frequency-modulated input pulse signal, comprising means for separating the input signal into a plurality of frequency component signals; means passing each component signal through a related dispersive medium to compress the component signal in a predetermined compression ratio; and means for recombining the compressed component signals into an output pulse signal which is a compressed replica of the input signal.

Claim 3

A system for compressing a frequency-modulated input pulse signal, comprising means defining a plurality of channels having said input signal applied in parallel thereto; each channel including a frequency converter having the input signal applied to one input thereof and a local oscillation of predetermined frequency, different for each channel, applied to a second input thereof whereby to separate the input signal into a plurality of component signals in the respective channels; dispersive means in the respective channels connected to be traversed by said component signals to compress the latter in a prescribed compression ratio; and means for recombining the compressed component signals into an output pulse signal which is a compressed replica of the input pulse signal.

Claim 4

A system for compressing a frequency-modulated input pulse signal, comprising means defining a plurality of channels having said input signal applied in parallel thereto; each channel including a frequency converter having the input signal applied to one input thereof and a local oscillation of predetermined frequency, different for each channel, applied to a second input thereof whereby to separate the input signal into a plurality of component signals in the respective channels; dispersive means in the respective channels connected to be traversed by said component signals to compress the latter in a prescribed compression ratio; and means for recombining the compressed component signals into an output pulse signal which is a compressed replica of the input pulse signal.

Claim 7

A system for compressing a variable-frequency input signal, comprising means defining a plurality of parallel channels each including a frequency converter having the input signal applied to one input thereof and having respective local oscillations applied to second inputs thereof whereby to separate the input signal into a plurality of component signals in the respective channels; said local oscillations having frequencies displaced in accordance with an arithmetic series; dispersing means in the respective channels connected to be traversed by said component signals to compress the latter in a prescribed constant ratio; delay units in the respective channels for imparting to the component signals additional delays independent of the instantaneous frequency of said signals, by amounts displaced as between the channels in accordance with an arithmetic series generally reverse from said first arithmetic series; further frequency converters in the respective channels connected for mixing the compressed delayed component signals with said respective local oscillations so as to restore thereto the frequency of said input signal; and means for vectorially combining the outputs from the respective channels into an output signal, thereby introducing further compression.

Claim 8

A system for compressing a variable-frequency input signal, comprising means defining a plurality of parallel channels each including a frequency converter having the input signal applied to one input thereof and having respective local oscillations applied to second inputs thereof whereby to separate the input signal into a plurality of component signals in the respective channels; said local oscillations having frequencies displaced in accordance with an arithmetic series; dispersing means in the respective channels connected to be traversed by said component signals to compress the latter in a prescribed constant ratio; delay units in the respective channels for imparting to the component signals additional delays independent of the instantaneous frequency of said signals, by amounts displaced as between the channels in accordance with an arithmetic series generally reverse from said first arithmetic series; further frequency converters in the respective channels connected for mixing the compressed delayed component signals with said respective local oscillations so as to restore thereto the frequency of said input signal; and means for vectorially combining the outputs from the respective channels into an output signal, thereby introducing further compression.