Linearizer frequency discriminator for frequency modulated radar

Details Linearizer frequency discriminator for frequency modulated radar Linearizer frequency discriminator for frequency modulated radar

1985-09-25

1987-09-08

Tubbesing, T. H.

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

For frequency modulation

342174, 331 4, G01S 1332, G01S 740

Patent

active

046927662

ABSTRACT:
Signals to control the signal processor in the linearizer of a frequency modulated continuous wave radar transmitter are generated by sampling the signal being transmitted, modulating and delaying this signal, mixing the modulated delayed signal with a second sample of the signal being transmitted to obtain an intermediate frequency signal, filtering the intermediate frequency signal to isolate the upper and lower sidebands of this signal and mixing the two sidebands to obtain a control signal having a frequency that varies directly with the beat frequency between the sampled and delayed signals.

REFERENCES:
patent: 3221266 (1965-11-01), Vitkovits, Jr.
patent: 3341849 (1967-09-01), Cordry et al.
patent: 4008475 (1977-02-01), Johnson
patent: 4106020 (1978-08-01), Johnson
patent: 4245196 (1981-01-01), Peebles, Jr. et al.
patent: 4245221 (1981-01-01), Kipp et al.
patent: 4276549 (1981-06-01), Tomasi

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