The purpose of the millimeter-wave anti-collision radar for vehicles is reducing the accident rate with a higher accuracy of range and velocimetry accuracy. This paper introduced an electric circuit design for signal processing board used in the 77GHz triangle wave frequency modulation radar system, with the processing procedure of secondary radar echo signal amplification, low-noise filtering and high-precision A/D converter and FPGA operation. This paper also introduced the design and simulation for parts of the circuits. The results illustrates that, the design has the advantages of small size, low power consumption, low cost, and has a certain degree of flexibility and scalability. The design reaches the specifications of the vehicle active anti-collision radar. http://www.sj-ce.org/paperInfo.aspx?ID=999
