Patent · US Active

Method for detecting loss of sensitivity of an FMCW radar locating device by diffuse sources of loss

US8749429B2 · kind B2 · utility

6Cited by

5References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Stefan Heilmann · Lambach, DE
Goetz Kuehnle · Hemmingen, DE
Dirk Bechler · Karlsruhe, DE

Key dates

Filing date	Dec 28, 2009
Grant date	Jun 10, 2014
Priority date	—
Expiry date	Apr 4, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01S13/345
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for the detection of sensitivity losses of an FMCW radar locating device due to diffuse sources of loss, in which the radar locating device emits a transmit signal whose frequency is periodically modulated in successive modulation ramps, and at least one power characteristic of at least one frequency portion of a signal received by the radar locating device is evaluated, wherein the power of the transmit signal is varied cyclically, in each case after the completion of a modulation ramp, and the sensitivity losses are determined on the basis of differences in the power characteristics of signals received during successive modulation ramps having identical modulation.

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