Method and measuring device for determining a relative velocity

Details Method and measuring device for determining a relative velocity Method and measuring device for determining a relative velocity

2008-04-14

2009-10-06

Sotomayor, John B (Department: 3662)

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

Determining velocity

Combined with determining distance and direction

C342S070000, C342S109000, C342S113000, C342S114000, C342S115000, C340S435000, C340S436000, C340S903000

Reexamination Certificate

active

07598904

ABSTRACT:
The present invention relates to a method and device for determining a relative velocity between a host (100) and a target (102). The present invention relates in particular to a method of the type that can be used in motor vehicle radar systems and specifically in radar systems of the type that detect obstacles in a blind spot of a motor vehicle. In the method according to the invention the following steps are carried out: substantially simultaneously determining a value for a radial velocity and a bearing with regard to a predefined spatial direction for a large number of measurement points (106) on the target (102); calculating a large number of quotients from the radial velocity and the cosine of the associated bearing, a quotient being calculated for each of the measurement points (106); determining an estimated relative velocity between the host (100) and the target (102) by forming an average of the large number of quotients.

REFERENCES:
patent: 3102263 (1963-08-01), Meyer
patent: 3833906 (1974-09-01), Augustine
patent: 6300896 (2001-10-01), Kull et al.
patent: 7248208 (2007-07-01), Hager et al.
patent: 2008/0266170 (2008-10-01), Klotzbuecher et al.
patent: 3540426 (1986-05-01), None
patent: 1014108 (2000-06-01), None
patent: 2244405 (1991-11-01), None
patent: 07140245 (1995-06-01), None

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