Stretch and chirp waveform format for reduced generating and...

Details Stretch and chirp waveform format for reduced generating and... Stretch and chirp waveform format for reduced generating and...

G - Physics

01

S

G01S 13/00 (2006.01) G01S 13/28 (2006.01)

Patent

CA 2067324

Unique stretch and chirp waveform formats are de- scribed which allow significant simplification of radar signal generation and receive processing hardware. The new formats produce a non-zero intermediate frequency (IF) to facilitate in-phase and quadrature (I/Q) processing but allows the use of a homodyne type of receiver architecture. That architecture greatly simplifies the receiver hardware because the first local oscillator (LO) signal is simply a sample of the transmitter drive signal and no second LO is required. The non-zero IF is achieved by control of the timing and start frequency of the first LO waveform for stretch processing and timing of the transmit signal gating for chirp processing.

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