Methods and Systems for Validating Automotive Radar Pitch using Elevation Sidelobe Measurements

Abstract: example embodiments relate to techniques and systems for using elevation sidelobe measurements to validate automotive radar pitch. a vehicle computing system can cause a radar to transmit radar signals into an environment of the vehicle and receive radar data corresponding to the transmitted radar signals. the computing system identifies a sidelobe represented in the radar data and estimates a relative measurement corresponding to the sidelobe. the relative measurement corresponding to the sidelobe represents at least an elevation measurement or an azimuth measurement corresponding to the sidelobe. the computing system then determines a pitch error based on a comparison between the relative measurement corresponding to the sidelobe and a reference sidelobe measurement and performs a calibration process for subsequent operation of the radar based on the pitch error. a computing system can also use elevation sidelobe measurements to estimate vehicle speed, detect road grade changes, and detect precipitation on the road.

Inventor(s): Michael Dane Fina

CPC Classification: G01S7/4039 (Means for monitoring or calibrating)

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