A radar device (10, 10e, 10b, 10d) mounted on a moving object, the radar device comprising: a radar transmitter (100, 100d, 100b) adapted to repeatedly transmit a corrected radar transmission signal in each radar transmission interval T r, the corrected radar transmission signal including pulse compression codes and having a corrected Doppler frequency component; a radar receiver (200, 200b, 200d) including one or more reception branches, each receiving a reflection wave signal resulting from reflection of the corrected radar transmission signal by a target; and a Doppler correction phase-rotation controller (500, 500b) adapted to determine a Doppler correction phase-rotation amount for correcting the Doppler frequency component, based on the movement speed of the moving object and on an installation angle of the radar device on the moving object with respect to a movement direction of the moving object, wherein the radar transmitter (100, 100d, 100b) includes a radar-transmission-signal generator adapted to generate a radar transmission signal, and a phase rotator (102, 102c, 102b) adapted to correct the radar transmission signal for each radar transmission interval T r, based on the Doppler correction phase-rotation amount, and that outputs the corrected radar transmission signal; and wherein the radar receiver (200, 200b, 200d) includes a position-determination result outputter (212, 212b, 212d) adapted to calculate a position-determination result of the target by using a result of Doppler-frequency analysis on the reflection wave signal received by the one or more reception branches and the Doppler correction phase-rotation amount. a radar transmitter (100, 100d, 100b) adapted to repeatedly transmit a corrected radar transmission signal in each radar transmission interval T r, the corrected radar transmission signal including pulse compression codes and having a corrected Doppler frequency component; a radar receiver (200, 200b, 200d) including one or more reception branches, each receiving a reflection wave signal resulting from reflection of the corrected radar transmission signal by a target; and a Doppler correction phase-rotation controller (500, 500b) adapted to determine a Doppler correction phase-rotation amount for correcting the Doppler frequency component, based on the movement speed of the moving object and on an installation angle of the radar device on the moving object with respect to a movement direction of the moving object, wherein the radar transmitter (100, 100d, 100b) includes a radar-transmission-signal generator adapted to generate a radar transmission signal, and a phase rotator (102, 102c, 102b) adapted to correct the radar transmission signal for each radar transmission interval T r, based on the Doppler correction phase-rotation amount, and that outputs the corrected radar transmission signal; and a radar-transmission-signal generator adapted to generate a radar transmission signal, and a phase rotator (102, 102c, 102b) adapted to correct the radar transmission signal for each radar transmission interval T r, based on the Doppler correction phase-rotation amount, and that outputs the corrected radar transmission signal; and wherein the radar receiver (200, 200b, 200d) includes a position-determination result outputter (212, 212b, 212d) adapted to calculate a position-determination result of the target by using a result of Doppler-frequency analysis on the reflection wave signal received by the one or more reception branches and the Doppler correction phase-rotation amount.