A vehicle-to-vehicle communication and ranging system based on spread spectrum technique-SS communication radar

A concept of a vehicle-to-vehicle communication and ranging system, which was called boomerang transmission system, was first proposed by Mizui, Uchida, and Nakagawa (1993). By exploiting the spread-spectrum technique, the system was capable of transmitting data and measuring the range between two vehicles simultaneously, and its theoretical validity was proved using a computer simulation. In this study, a laboratory-scale prototype system was developed to confirm the workability of the concept on real electrical circuits and the capabilities of data transmission and ranging under interference signals were evaluated