Object ranging

Details Object ranging Object ranging

2009-11-23

2011-10-04

Sotomayor, John B (Department: 3662)

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

Return signal controls external device

Radar mounted on and controls land vehicle

C342S085000, C342S109000, C342S114000, C342S115000, C342S128000, C342S137000

Reexamination Certificate

active

08031106

ABSTRACT:
A method for determining at least one of the distance to and the speed of an object is discussed. The method comprises determining an indication of whether the object is approaching or moving away and generating an interrogation signal comprising a sequence consisting of segments at constant frequency and segments of varying frequency, wherein if the determining step indicates the object is approaching then the varying frequency segments have decreasing frequency and if the determining step indicates that the object is moving away then the varying frequency segments have increasing frequency. The interrogation signal is transmitted and a version of the interrogation signal reflected from the object is detected. At least one of the distance to and speed of the object is then determined using a combination of the interrogation signal and the reflected version of the interrogation signal.

REFERENCES:
patent: 4106020 (1978-08-01), Johnson
patent: 5151702 (1992-09-01), Urkowitz
patent: 5274380 (1993-12-01), Yatsuka et al.
patent: 5376939 (1994-12-01), Urkowitz
patent: 5517197 (1996-05-01), Algeo et al.
patent: 5768131 (1998-06-01), Lissel et al.
patent: 6104336 (2000-08-01), Curran et al.
patent: 6396436 (2002-05-01), Lissel et al.
patent: 6606052 (2003-08-01), Miyahara
patent: 6677887 (2004-01-01), Harman
patent: 7002512 (2006-02-01), Isaji
patent: 7148840 (2006-12-01), Dooi et al.
patent: 7190305 (2007-03-01), Isaji
patent: 7466261 (2008-12-01), Hoctor et al.
patent: 1925948 (2008-05-01), None
patent: 2189809 (2010-05-01), None
patent: 2004-151022 (2004-05-01), None
Jankiraman et al., “System Design and Verification of the Pandora Multifrequency Radar”, International Conference on Radar Systems, Brest, France, May 17-21, 1999, pp. 1-6.
Kretschmer et al., “Doppler Properties of Polyphase Coded Pulse Compression Waveforms”, IEEE Transactions on Aerospace and Electronic Systems, vol. AES-19, No. 4, Jul. 1983, pp. 521-531.
Rohling et al., “Waveform Design Principles for Automotive Radar Systems”, International Conference on Radar, Beijing, China, Oct. 15-18, 2001, pp. 1-4.

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