Patent · US Expired

Radar method used in a motor vehicle

US6266004A · kind A · utility

12Cited by

3References

2Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Wolfram Pannert · Aalen, DE
Dieter Mann · Senden, DE
Wieland Jacobi · Ulm, DE
Wolfgang C. Wittekind · Nersingen, DE

Key dates

Filing date	May 20, 1999
Grant date	Jul 24, 2001
Priority date	—
Expiry date	May 20, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG01S2013/9321
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a radar method for an automatic intelligent traffic control (AICC) in a motor vehicle. The use of a frequency modulation continuous wave method (FM-CM) is suggested in order to securely detect the distance to, relative speed and angle of a preceding motor vehicle. It is furthermore suggested according to the invention that when using an A/D converter 5 with 8-bit resolution, the necessary dynamics are generated by means of a level switchover, that the R, V information is generated in FFTs [Fast Fourier Transformations] 6 with blocked R and V-FFTs, that the useful signals are separated from the noise in a detection device 7 by means of a R-dependent adaptive CFAR threshold, that in a track formation 8, the detection is directly assigned to the tracks and that the association of a detection i to a track j is in the process computed as probability r (i, j).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.