Movement prediction apparatus

A movement prediction apparatus comprising:

• a first light output device configured to output output-light having a spectral component of a first optical frequency comb of which a frequency comb interval is a first interval;
• a second light output device configured to output reference light having a spectral component of a second optical frequency comb of which a frequency comb interval is a second interval different from the first interval;
• a light reception device configured to receive first combination light that is a combination of standard light that is a first part of the output-light, first reflection light that is a second part of the output-light reflected by a first rotor wing of an flying object having a plurality of rotor wing s, and the reference light, to measure a first distance to the first rotor wing based on the first combination light;
• and
• a processor configured to calculate a first rotation amount that represents a rotational speed of the first rotor wing based on a change amount of the measured first distance, and predict a movement of the flying object based on a change of the calculated first rotation amount.