Radar reference map generation

Abstract

Methods and systems for implementing radar reference map generation are described. A high definition (HD) map is received and one or more HD map objects within the HD map are determined. An attribute of the respective HD map object is determined, and for each HD map object, one or more occupancy units in the radar occupancy grid are indicated as occupied space based on the attribute of the respective HD map object. By doing so, the radar reference map may be generated without a vehicle passing through an area corresponding to the radar reference map.

Description

Cross References to Related Applications [0001] This application claims the benefit of U.S. Provisional Application No. 63 / 146,483, filed February 5, 2021, and U.S. Provisional Application No. 63 / 127,049, filed December 17, 2020, under 35 U.S.C. 119(e), which The disclosure of the provisional application is incorporated herein by reference in its entirety. Background technique [0002] Radar positioning is a technique that uses radar reflections to locate a vehicle to a reference map (eg, to determine the vehicle's position on the map). Radar localization can be used to support autonomous vehicle operations (eg, navigation, path planning, lane determination and centering, and curve enforcement without lane markings). In order to accurately locate a vehicle relative to its environment, radar positioning consists of obtaining a position from a stationary positioned object (e.g., with road adjacent objects or spatial statistical patterns) reflections. When the availability o...

AI Technical Summary

Problems solved by technology

When the availability of such localization objects is insufficient (e.g., using poor-quality or incomplete radar reference maps), a driver takeover is often initiated, which can override semi-autonomous or fully autonomous control

Increased driver takeovers may be less safe than vehicles operating under autonomous control, and their frequency can reduce driver satisfaction

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