Inventors:
William W. Kestenbaum - Lido Beach NY
Assignee:
Republic Electronics, Inc. - Melville NY
International Classification:
H03C 300
Abstract:
A system and method for generating phase/frequency coded pulses useful in radar and similar applications, (such as simulation of multiple return of targets) by generating frequency modulated pulse compression pulses rapidly with practically no time in between. Typically, the system simulates target returns as FM sweeps or chirps to obtain an echo of a transmitted pulse having a known signature. Digital circuits are employed with finite steps connected to a digital-to-analog converter driving a radio frequency balanced modulator, to produce the desired chirp output. The system generates FM phase modulations by reading two phase history records representing cosine and sine functions in phase quadrature of a to-be-transmitted pulse.
