| 摘要 |
<P>PROBLEM TO BE SOLVED: To separate a plurality of radar signals with simple constitution without adding any circuit configuration for synchronization among operations of respective transmission-side systems. <P>SOLUTION: A first radar transmission part transmits a first modulation signal having a code series of predetermined code length repeated as many times as specified using a first code width. A second radar transmission part transmits a second modulation signal having the same code series repeated as many times as specified using a second code width. A radar reception part separates a plurality of reception signals by using: an A/D conversion part which performs conversion into a discrete signal in sampling cycles smaller than the difference value between the first code width and second code width; a first delay part which delays an output signal from the A/D conversion part by the predetermined number of samples corresponding to the first code width; a second delay part which delays the output signal by the predetermined number of samples corresponding to the second code width; a first correlation value calculation part which calculates a first correlation value based upon output signals from the A/D conversion part and first delay part; and a second correlation value calculation part which calculates a second correlation value based upon output signals from the A/D conversion part and second delay part. <P>COPYRIGHT: (C)2013,JPO&INPIT |
