MIMO radar system

A method for detecting an object using radar system having M transmit antennas, N receive antennas, and a processor, comprising:

• receiving, by the processor, N×M digital signals, wherein the N receivers receive M received signals corresponding to M sequences of encoded transmitted signals resulting in N×M digital signals;
• processing the N×M digital signals to produce N×M first range/relative velocity matrices;
• applying a phase compensation to N×(M−1) first range/relative velocity matrices to compensate for a difference in range between the N×(M−1) first range/relative velocity matrices and the Mth range/velocity matrix;
• decoding the M phase compensated range/relative velocity matrices for the N receivers using an inverse of the transmit encoding to produce M decoded phase range/relative velocity matrices for the N receivers;
• and
• detecting objects using the M range/relative velocity matrices for the N receivers to produce a detection vector;
• wherein the phase compensation is calculated independent of the velocity of the detected objects.

A non-transitory machine-readable storage medium encoded with instructions for execution by a radar system having M transmit antennas and N receive antennas for detecting an object, the medium comprising:

• instructions for receiving N×M digital signals, wherein the N receivers receive M received signals corresponding to M sequences of encoded transmitted signals resulting in N×M digital signals;
• instructions for processing the N×M digital signals to produce N×M first range/relative velocity matrices;
• instructions for applying a phase compensation to N×(M−1) first range/relative velocity matrices to compensate for a difference in range between the N×(M−1) first range/relative velocity matrices and the Mth range/velocity matrix;
• instructions for decoding the M phase compensated range/relative velocity matrices for the N receivers using an inverse of the transmit encoding to produce M decoded phase range/relative velocity matrices for the N receivers;
• and
• instructions for detecting objects using the M range/relative velocity matrices for the N receivers to produce a detection vector;
• wherein the phase compensation is calculated independent of the velocity of the detected objects.