Radar apparatus and method of suppressing in-band interference therein

A radar apparatus which is one of a plurality of radar apparatuses sharing frequency resource, comprising:

• a receiver configured to acquire a receive signal;
• a plurality of matched filters arranged in parallel to filter the receive signal, each corresponding to a respective one of the plurality of radar apparatuses to use a transmit signal of a corresponding radar apparatus as a reference signal;
• and
• a signal reconstructor configured to select a matched filter most adequate for an interference suppression based on outputs of the plurality of matched filters, subtract the reference signal of a selected matched filter at least partially from the receive signal, and reconstruct a desired echo signal to be used to determine a target, repeatedly until a predetermined termination condition is satisfied,
• wherein the termination condition includes a condition that the receive signal contains only a noise component without any remaining echo signal component, a condition that a magnitude of the receive signal is lowered below a predetermined threshold, a condition that a standard deviation of the receive signal is lowered below a predetermined threshold, and a condition that a magnitude of the reconstructed desired echo signal is increased beyond a predetermined threshold.