摘要
波达方向估计(DOA估计)是智能天线中实现目标精确定位的关键算法。文中针对DOA估计中相干信号源的问题,提出了一种能有效解相关的关于TOPETIZE矩阵的DOA估计算法。该算法利用了阵列接收数据互相关矢量的内在关系,对噪声子空间进行处理,实现了相干源的完全解相干。该算法不牺牲阵元有效数目,同时能分辨低信噪比信号和强相关信号。仿真结果表明了该算法的有效性。
DOA algorithm is the key algorithm in Smart Antenna to achieve the goal positioned accurately. The paper put forward a new DOA method based on TOPEL1TZ matrix, which can decorrelate strong correlation signal effectively.The algorithm use the internal relation of array receiving data to deal with noise subspace, then to complete the DOA estimation for coherent signals. The algorithm will not have aperture loss, and can distinguish between low SNR signal and strong correlation signal Results are presented to illustrate the efficiency and accuracy of this method.
出处
《电子设计工程》
2012年第5期90-92,共3页
Electronic Design Engineering
