| 摘要 |
The present invention relates to rear lateral radar of dual transmission type capable of detecting multiple rear lateral areas (BSD, LCA, RCTA and RCW) using especially two transmission beams at vehicle radar and the characteristic of the resent invention is to comprise; a first transmission antenna which radiates a first transmission beam for detecting a first area corresponding to a rear lateral blind spot detection (BSD) area, a lane change assist (LCA) area, and a rear crash warning (RCW) area; a second transmission antenna which radiates a second transmission beam for detecting a second area corresponding to a rear cross traffic alert (RCTA) area except the first area detected by the first transmission antenna; first and second reception antennas for receiving a reception signal reflected to a target of the first area or the second area; a first reception signal processing part which outputs a coordinate reception channel signal and a quadrature phase reception channel signal from a first reception signal of the first reception antenna; a second reception signal processing part which outputs a coordinate reception channel signal and a quadrature phase reception channel signal from a second reception signal of the second reception antenna; an AD converter which converts an output of the first and second reception signal processing part according to channel into a digital reception signal; a digital signal processing processer which calculates detection information for the target using the digital signal. [Reference numerals] (100) Superhigh frequency module;(130) Transmission signal processing unit;(140a,140b) Reception signal processing unit;(200) Signal processing module;(220,221,222,223) AD converter;(AA) Tx control;(BB) Rx control;(CC) Correction;(DD) CFAR detection;(EE) Angle calculation |
