Distributed detection with initial thresholds in local sensors

For distributed multiple-input multiple-output (MIMO) radar, signal fusion based detection algorithms can significantly improve the target detection performance, but it may demand a high communication cost. In order to reduce the communication cost with a tiny loss in detection performance, this paper studies a distributed radar detection scheme that would set initial thresholds at local radar sites before transmitting local observations to a signal fusion center. The mechanism to make final decision is given and the probability of false alarm rate is formulated.