Radar system utilizing chaotic coding

Details Radar system utilizing chaotic coding Radar system utilizing chaotic coding

1993-06-28

1994-06-14

Sotomayor, John B.

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

With particular circuit

For pulse modulation

342204, 342132, 342134, 342135, 342201, G01S 1328, G01S 1330

Patent

active

053214099

ABSTRACT:
A radar system (20) has a chaotic code source (22) with a chaotic code output (23), which generates a chaotic code according to a chaotic difference equation. The radar system (20) further includes a transmitter (24) with a carrier signal source (28) of a carrier signal (29), and an encoder (30) having as a first input the carrier signal (29) of the carrier signal source (28) and as a second input the chaotic code output (23) of the chaotic code source (22), and as an output a transmitted radar signal (36) having the chaotic code output (23) encoded onto the carrier signal (29). A radar system receiver (26) includes a correlator (46) having as a first input the chaotic code output (23) of the chaotic code source (22) and as a second input a received radar signal (44), and as an output an indication of the correlation of the first and second inputs. The correlation is used to determine the distance, speed, or other characteristic of an object that reflected the radar signal.

REFERENCES:
patent: 3721985 (1973-03-01), Perfitt
patent: 3855593 (1974-12-01), Van Hijfte et al.
patent: 4121211 (1978-10-01), Cusack
patent: 4132991 (1979-01-01), Wocher et al.
patent: 4379295 (1983-04-01), Lewis et al.
patent: 4513288 (1985-04-01), Weathers et al.
patent: 4566010 (1986-01-01), Collins
patent: 4894660 (1990-01-01), Thomson et al.

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