Doppler processing unit, a radar device, Doppler processing method, and Doppler processing program

An object of the present invention is to prevent deterioration of S / C and S / N improvement caused by Doppler processing due to unequal intervals between transmission and reception of pulse signals. A radar apparatus adopts a stagger trigger method and receives a pulse signal repeatedly transmitted at unequal intervals by a radar antenna. The phase calculation unit 43 calculates the amount of phase change caused by the moving speed of the radar antenna 20 in the complex reception signals I and Q obtained by receiving the pulse signal at the radar antenna 20. The own ship speed correction unit 44 corrects the complex reception signals I and Q based on the phase change amount calculated by the phase calculation unit 43 and outputs corrected complex reception signals I ′ and Q ′. The Doppler processing unit 45 performs Doppler processing using the corrected complex reception signals I ′ and Q ′. [Selection] Figure 1