Abstract:Target orientation using multiple passive buoys was studied. A kind of passive target orientation algorithm based on least square algorithm was put forward under the condition of knowing the range differences between each buoy and target, namely, a method to realize target orientation while making the square of localization error least. Based on the analysis of localization rule and localization error of this algorithm, orientation performances were simulated by using Monte-Carlo for far-field and near-field cases. Under the condition of some hypothesis, the effects of different measured range differences on the target location error, location RMS error and bearing error were analyzed by simulation, and the orientation performances under two cases of far-field and near-field targets were analyzed and compared.