Patent ID: 7755538

Claim:
A radar apparatus comprising: a transmission pulse group generator configured to generate a first transmission pulse group from a first transmission pulse train formed of N first transmission pulses (N>2, where N is an integer number) having constant first time intervals t 1 , by thinning a first transmission pulse out of the first transmission pulse train so that all time intervals ranging from t 1 to (N−1)*t 1 are held by pairs of first transmission pulses selected from the first transmission pulse group, and a second transmission pulse group from a second transmission pulse train formed of M second transmission pulses (M>2, where M is an integer number) having second time intervals t 2 different from the first time intervals t 1 , by thinning a second transmission pulse out of the second transmission pulse train so that all time intervals ranging from t 2 to (M−1)*t 2 are held by pairs of second transmission pulses selected from the second transmission pulse group; and a transmitter configured to transmit the first transmission pulse group and the second transmission pulse group in an identical direction in a way that the first and second transmission pulse groups partially or entirely overlap each other in terms of time.