Passive radar is of interest in many aspects. These radars accomplish target localization by receiver sensors. In this paper, we investigate the effect of the sensors arrangement on the performance of multi-transmitter and multi-receiver passive radar and present a method to maximize target localization accuracy on the important locations by the optimal arrangement of receiver sensors. The proposed method is based on the Cramer-Rao lower band. The optimal placement of receiver sensors can be achieved with the help of the proposed method. We investigate the types of sensors arrangement for better accuracy in the surveillance area. The provided Cramer-Rao lower band is developed for the use of time difference of arrival measurements and the angle of arrival measurements. As illustrated in the simulations results, the joint use of both the time difference of arrival and the angle of arrival is better than the use of them alone. Furthermore, the blind areas caused by the receiver sensors arrangement are eliminated by the joint use of measurement. On the other hand, the target localization efficiency increases with the increasing distance between sensors and their dispersion in the environment.

中文翻译：

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传感器布置对多发射器和多接收器无源雷达效率的影响

无源雷达在许多方面都令人感兴趣。这些雷达通过接收器传感器完成目标定位。在本文中，我们研究了传感器布置对多发射器和多接收器无源雷达性能的影响，并提出了一种通过最佳布置接收器传感器来最大化重要位置上的目标定位精度的方法。所提出的方法基于Cramer-Rao较低频段。借助于所提出的方法可以实现接收器传感器的最佳布置。我们调查传感器布置的类型，以在监视区域获得更好的准确性。所提供的Cramer-Rao下频带是为使用到达时间差和到达角度测量值而开发的。如仿真结果所示，到达时间差和到达角度的联合使用比单独使用它们要好。此外，通过联合使用测量消除了由接收器传感器装置引起的盲区。另一方面，目标定位效率随着传感器之间距离的增加及其在环境中的分散而增加。