Radar apparatus

Details Radar apparatus Radar apparatus

1993-03-19

1994-08-16

Sotomayor, John B.

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

Clutter elimination

Mti

342132, 342131, 342129, G01S 13538

Patent

active

053390849

ABSTRACT:
There is provided a radar apparatus wherein a local signal having a coherent sine wave is modulated to generate a composite signal of two signals modulated by different modulation functions. The composite signal is transmitted as a transmission signal, and a reception signal associated with the transmitted signal is separated into two signal components modulated by the different modulation functions. A difference between the two signal components is found, thereby removing a reflection signal from a static clutter and extracting a signal component which has been frequency-deviated by a moving target. Thus, the moving target is displayed. The transmission frequency can be quickly changed without losing the function of detecting the moving target.

REFERENCES:
patent: 3225349 (1965-12-01), Thor
patent: 3905033 (1975-09-01), Moore et al.
patent: 4136341 (1979-01-01), Mulder et al.
patent: 5140332 (1992-08-01), Martin et al.

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