Pulse radar apparatus

Details Pulse radar apparatus Pulse radar apparatus

G - Physics

01

S

343/50

G01S 7/28 (2006.01) G01S 7/288 (2006.01) H03D 1/22 (2006.01)

Patent

CA 1210838

Abstract A pulse radar apparatus is provided with a coherent transmitting and receiving unit (1) for the transmission of radar pulses, the reception of echo signals, and the conversion of said signals into signals of an intermediate frequency fif, which may be shifted through a Doppler frequency fd. The echo signals with frequency fif +fd are fed to a detector (7) for the coherent phase detection with a frequency fif + fc. The detected signals are fed to an analogue-to-digital converter (10), which operates at a frequency of approximately 4fc. The pulse radar apparatus further comprises accumulators (12, 13), alternately fed with the output signals of the analogue-to-digital converter (10) each time for a given period, after which period the output signals of the accumulators (12, 13) are representative of the orthogonally detected components of the echo signal.

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