Patent ID: 9689967
Date: 2017-06-27
CPC Classifications: G01S,H04B,H04L

Claim:
1. A method for measuring interference in a radar system in a vehicle, the method comprising: providing a radar system comprising a plurality of transmitters configured for installation and use on a vehicle and configured to transmit radio signals, and a plurality of receivers configured for installation and use on the vehicle and configured to receive radio signals that include the transmitted radio signals reflected from objects in the environment; wherein each transmitter of the plurality of transmitters is further configured to phase modulate the transmitted radio signals using a unique spreading code; for a first period of time, transmitting with only a first transmitter of the plurality of transmitters and receiving radio signals transmitted from the first transmitter with each receiver of the plurality of receivers; correlating the received radio signals with each receiver of the plurality of receivers to estimate interference that the first transmitter will represent at each receiver of the plurality of receivers; for a second period of time, transmitting with only a second transmitter of the plurality of transmitters and receiving radio signals transmitted from the second transmitter with each receiver of the plurality of receivers; correlating the received radio signals with each receiver of the plurality of receivers to estimate interference that the second transmitter will represent at each receiver of the plurality of receivers; and mitigating at each receiver of the plurality of receivers the estimated interference that is due to interfering radio signals transmitted by the first and second transmitters of the plurality of transmitters.