Radar apparatus, clutter suppression method, and clutter suppression program

A clutter suppression method for a radar apparatus, comprising:

• transmitting an electromagnetic wave;
• acquiring amplitude information indicating an amplitude of a reflected signal reflected by a target and phase information indicating a phase of the reflected signal;
• calculating a compatibility degree of clutter included in echo data based on the reflected signal using a membership function (F) for each of the amplitude information and the phase information;
• calculating a first compatibility degree corresponding to the amplitude information and a second compatibility degree corresponding to the phase information;
• and
• suppressing the clutter based on the first compatibility degree and the second compatibility degree.

A clutter suppression program for a radar apparatus,

• the clutter suppression program causes a computer to execute a process of:
• transmitting an electromagnetic wave;
• acquiring amplitude information indicating an amplitude of a reflected signal reflected by a target and phase information indicating a phase of the reflected signal;
• calculating a compatibility degree of clutter included in echo data based on the reflected signal by using a membership function for each of the amplitude information and the phase information;
• calculating a first compatibility degree corresponding to the amplitude information and a second compatibility degree corresponding to the phase information;
• and
• suppressing the clutter based on the first compatibility degree and the second compatibility degree.