Continuous wave radar with ranging capability

Communications: directive radio wave systems and devices (e.g. – With particular circuit – Complex signal

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364728, 342196, 342 93, 342128, G01S 1332

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active

046188630

ABSTRACT:
A frequency modulated continuous wave radar wherein analog signals received from a target are converted to digital form, processed by correlation with differently delayed signals, also in digital form, of a modulation waveform repetitively applied to the transmitted signals and the frequency spectra of the resulting signals are determined, such spectra being indicative of range of the target. In addition, a digital correlator adapted to perform the desired correlation is shown.

REFERENCES:
patent: 3623097 (1971-11-01), Femenias
patent: 3863058 (1975-01-01), Savit
patent: 3875391 (1975-04-01), Shapiro et al.
patent: 4003054 (1977-01-01), Goldstone
patent: 4028700 (1977-06-01), Carey et al.
patent: 4037202 (1977-07-01), Terzian
patent: 4176351 (1979-11-01), DeVita et al.
patent: 4292635 (1981-09-01), Rittenbach
patent: 4450531 (1984-05-01), Kenyon et al.
M. I. Skolnik, Radar Handbook, 1970, McGraw-Hill, N.Y.; p. 35-12, "Quad. Channels".

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