抄録
A cooperative system of ultra-wideband (UWB) radar and an inter-vehicle communication (IVC) scheme was proposed in a previous study. However, in this system, when the time synchronization is not accurate, the ranging cannot be well performed. To solve this problem, a system that realizes time synchronization between the transmitter and the receiver by using the two-way ranging (TWR) method is proposed in this paper. This scheme is evaluated by computer simulations in an environment where the number of interference vehicles is increased. However, the reception characteristics deteriorate when the number of interference vehicles increases. In order to reduce the interference from other vehicles, a repetitive detection scheme using a successive interference cancellation (SIC) technique is adopted. As a result, better reception characteristics are obtained up to a distance of 90m without using SIC. When SIC is used, good reception characteristics are maintained up to 90m even when there are seven interference vehicles.
