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在由2坐标雷达组成的雷达网中,推导了目标高度估计误差的CRLB(Cram啨r Rao限),并通过不同条件下的数值计算得到了一些结论。结果表明,目标高度估计误差的CRLB既与雷达的测角误差有关,也与目标和2个雷达站形成的夹角有关系,雷达配置在不同的高度上有利于目标高度估计的收敛性。这些结论对于2坐标雷达组网以及雷达网中的传感器管理具有指导意义。
In the radar network composed of 2-coordinate radar, the CRLB (Cram 啨 r Rao limit) of the target height estimation error is derived, and some conclusions are obtained by numerical calculation under different conditions. The results show that the CRLB of the target height estimation error is related to the angle error of the radar and the angle formed by the target and the two radar stations. The radar configuration at different heights is favorable for the convergence of the target altitude estimation. These conclusions are instructive for sensor management in 2-coordinate radar networking and radar networks.