Radar sensor array for interference hunting and detection

Abstract

A radar sensing system for an autonomous driving vehicle (ADV) is disclosed. The system comprises a number of radar sensors operable to detect radio waves emitted from one or more objects in proximityof the ADV. Each of the radar sensors includes one or more antennas to receive the radio waves and to convert the radio waves into respective antenna output signals. The system further comprises a signal processor configured to determine a number of angles of arrival associated with the radio waves responsive to the antenna output signals, and to provide object location information based on the angles of arrival. The object location information includes a location of each of the one or more objects.

Description

technical field [0001] Embodiments of the present disclosure relate generally to radar systems. More specifically, embodiments of the present disclosure relate to radar sensor arrays for jamming search and detection. Background technique [0002] Vehicles operating in an autonomous mode (eg, driverless) can relieve the occupants, especially the driver, from some driving-related duties. When operating in autonomous mode, the vehicle can navigate to various locations using an onboard sensor system, allowing the vehicle to drive with minimal human interaction or in some situations without any passengers. The sensor system includes, inter alia, one or more cameras, a global positioning system (GPS), an inertial measurement unit (IMU), and a light detection and ranging (LIDAR) unit to track its surroundings (e.g., other vehicles, pedestrians, buildings, traffic signs, etc.). The sensor system also includes a radar (also known as radio detection and ranging) unit, which is an o...

AI Technical Summary

Problems solved by technology

While the receiver of an automotive radar has been used to measure signals reflected from objects, it has not been used to receive / detect / sense signals sent by other radars

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