Radar device

A radar device comprising:

• a plurality of transmission radars to transmit transmission radio-frequency signals by performing phase modulation on pulse signals with a same transmission frequency, using amounts of phase modulation, the transmission radio-frequency signals being the phase-modulated pulse signals, and the amounts of phase modulation varying between hit numbers;
• a reception radar to receive, as a reception radio-frequency signal, each of the transmission radio-frequency signals having been transmitted from each of the plurality of transmission radars, and then reflected by a target;
• and
• a signal processor to detect a candidate for the target on a basis of the reception radio-frequency signal received by the reception radar, wherein
• each of the plurality of transmission radars uses, ponding one of the amounts of phase modulation, a value determined from either one of a positive integer value that is less than or equal to a result of division and a value of 0;
• a hit number;
• and a number of hits of a corresponding one of the transmission radio-frequency signals, the result of division being obtained by dividing the number of hits by a number of the plurality of transmission radars, the value using different amounts of the phase modulation satisfying a formula below.
• Δϕ
• 
• (
• n
• Tx
• ,
• h
• )
• =
• 2
• 
• π
• 
• p
• 
• (
• n
• Tx
• )
• H
• 
• h
• 
• (
• p
• 
• (
• n
• Tx
• )
• ∈
• {
• 0
• ,
• 1
• ,
• ⋯
• 
• ,
• floor
• 
• (
• H
• N
• Tx
• )
• }
• )
• ,
• where Δϕ(nTx, h) is amounts of the phase modulation, H is the number of hits, h is the hit number, NTX is the number of transmission radars.