Digital phase correction for coherent-on-receive pulsed radar sy

Details Digital phase correction for coherent-on-receive pulsed radar sy Digital phase correction for coherent-on-receive pulsed radar sy

1977-05-27

1978-06-13

Buczinski, S. C.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 5DP, G01S 740

Patent

active

040952240

ABSTRACT:
An improvement in a pulsed radar system providing coherent-on-receive signals utilizing digital techniques. The phase of the transmitted signal is compared to the phase of a stable local oscillator and the phase relationship is converted to a complex digital number which is then stored in a suitable short term memory. The received signals are also converted to complex digital numbers containing both the phase relationship to the stable local oscillator and the amplitude of the return video signal. The digitized received signals are then digitally phase corrected to provide coherence using the stored complex digital numbers for the correction.

REFERENCES:
patent: 3680099 (1972-07-01), Herman et al.
patent: 3742500 (1973-06-01), Freedman
patent: 3877011 (1975-04-01), Holberg et al.

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