G - Physics
01
S
343/45
G01S 13/32 (2006.01) G01S 7/40 (2006.01) G01S 7/493 (2006.01) G01S 13/28 (2006.01) G01S 13/88 (2006.01)
Patent
CA 2024932
A continuous wave ranging system, comprising a modulator 2 for modulating an r.f. carrier wave in accordance with a pseudo random code, a transmitting antenna 5 for radiating the modulated signal towards a target, a receiving antenna 6 and receiver 7 for detecting the signal reflected back from the target, a correlator 8 for correlating the reflected signal with the transmitted code with a selected phase shift corresponding to the current range gate to be tested, whereby the range of the target from the system may be determined, a store 12 containing a plurality of different pseudo random codes, and selector means 13 arranged to supply to the modulator 2 and to the correlator 8 a code from the store 12 whose sidelobe characteristics are suitable for the next range gate or gates to be tested.
Matich George Edward
Ramsey David Henry
Walls Raymond John
Kirby Eades Gale Baker
Matich George Edward
Ramsey David Henry
Walls Raymond John
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