Patent ID: 9442182
Filing Date: 2016-09-13
CPC Classification: G01S

Claim Text:
1. A radar device comprising: a transmission signal generator which produces N transmission pulses for every transmission period from N (N: an integer of 2 or more) kinds of transmission code sequences and (N×M) (M: an integer of 2 or more) kinds of orthogonal code sequences, the transmission pulses being obtained by multiplying transmission codes of the N kinds of transmission code sequences, with selected N orthogonal codes of the (N×M) kinds of orthogonal code sequences; and a radio transmitter which, in one transmission period, converts the N transmission pulses to high-frequency signals, and transmits the signals through a transmission antenna, wherein the (N×M) kinds of orthogonal code sequences are code sequences which satisfy an expression (1) in M transmission periods; and wherein CNM is an orthogonal code which is multiplied with an N-th transmission code in an M-th transmission period.