Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Patent
1999-07-13
2000-02-22
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Radar mounted on and controls land vehicle
342129, 342133, 342135, 342192, 342 72, G01S 1393
Patent
active
060285486
ABSTRACT:
An automotive radar incorporates a repetitive randomized equivalent LFM sequence of frequencies for improved immunity to jamming from other automotive radars. Each frequency in the sequence is of sufficient duration to travel round trip over the detection range of the radar. The Doppler shift in the received signal is estimated by performing a spectral analysis on similar frequency components of the received signal, and is then removed from the entire received signal. The received signal is then reordered so as to form an equivalent LFM received signal, and is compared with a similarly reordered image of the transmitted signal so as to estimate the range to the target. The randomization sequence, initial start frequency, or initial start time of the repetitive sequence are varied to minimize the effects of jamming by other radars, and this variation can be directionally dependent.
REFERENCES:
patent: 4003049 (1977-01-01), Sterzer et al.
patent: 5068654 (1991-11-01), Husher
patent: 5181038 (1993-01-01), Asbury et al.
patent: 5189426 (1993-02-01), Asbury et al.
patent: 5285207 (1994-02-01), Asbury et al.
patent: 5400032 (1995-03-01), Asbury et al.
patent: 5923280 (1999-07-01), Farmer
Automotive Systems Laboratory Inc.
Sotomayor John B.
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