Self-interference reduction for radar systems

Abstract

A radar system operates in two modes: a calibration mode and a sensing mode. In the calibration mode, the radar system sends a set of test signals via a set of transmitters and receives responsive signals at a corresponding set of receivers. Based on the received signals, the radar system estimates the channel responses. In a sensing mode of operation, the radar system transmits a signal, receives a responsive set of signals at the receivers, and detects characteristics of nearby objects based on the received signals. In the sensing mode, the radar system employs the estimated channel responses to precode the signals for transmission and thereby reduces the components of the received signals that are due to self-interference.

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