Information processing apparatus and sensing method

An information processing apparatus which senses an object by using an FMCW radar, comprising:

• a data processing unit which generates a power spectrum signal with a predetermined number of bins by processing a received signal of a plurality of antennas derived from a received wave of the FMCW radar, wherein the data processing unit acquires an angle power spectrum related to an angle with the object by performing angle FFT on the received signal;
• an acquisition unit which acquires a plurality of peak bins corresponding to the object based on the power spectrum signal, wherein the acquisition unit acquires an angle peak bin indicating an angle with the object based on the angle power spectrum;
• an extraction unit which extracts an output signal corresponding to the power spectrum signal;
• and
• a correction unit which corrects a phase of the output signal in accordance with a bin number of the plurality of peak bins, wherein
• the data processing unit applies a window function higher in order than a window function of a rectangular window when performing the angle FFT on the received signal,
• the correction unit corrects the phase of the output signal so that a phase difference to be added or subtracted is (N−1)/2×π×sin(θ(i)) [rad] in accordance with the bin number of the angle peak bin,
• N is a number of the plurality of antennas,
• i is the bin number of the angle peak bin, and
• θ(i) [rad] is an angle corresponding to the bin number of the angle peak bin.