Moving Target Detection for Asynchronous Data with Distributed MIMO Radar

In this paper, we consider the problem of moving target detection with multiple-input multiple-output (MIMO) radar under the “focused-transmit focused-receive” operating model. Since one transmitter may illuminate the moving target at a different moment with others, the received data of all receivers for those transmitters are asynchronous. To solve this problem, we propose a method named states exhausting detection (SED) that detects the moving target with asynchronous data provided by multiple transmitters. For SED, we first set several possible velocities of one target. Then we calculate the target states illuminated by all transmitters for every velocity. Finally, the presence of each target can be determined by exhausting all target states. Both analysis and extensive simulation results are provided to corroborate the proposed radar system and algorithm.