A DVB-S-Based Multichannel Passive Radar System for Vehicle Detection

Vehicle detection systems play a significant role in intelligent transportation (ITSs). At present, vehicle is realized either by very costly inductive loops, video cameras that require good weather conditions and high computing resources, or recently developed magnetic sensors only obtain limited accuracy congested traffic conditions. To overcome these challenges, this paper develops passive radar system robust to bad conditions, low cost radio silent for detection. The device installed at the side of road under crowded In system, cross-correlation (CC) operation applied suboptimal gain computational complexity. decrease impact interference independently identically distributed (i.i.d.) across isolated frequency channels Doppler effect produced mobile vehicle, multichannel joint scheme based on fusion (MCF) proposed implemented. Furthermore, achieve resolution, an illuminator opportunity (IO) with wide bandwidth selected, then designed receive digital broadcast-satellite (DVB-S) signal 37.5 MHz over multiple simultaneously. Simulation results show MCF achieves better performance than single-channel-based CC, advantage can be enhanced increasing number Field test further verify novelty prototype.