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ULA

于 2008-07-01 发布 文件大小:76KB
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  已知:信号中心波长为2,天线阵元的间距为1米,快拍数为2000,空中有四个 源信号,假设它们的频率 四个源信号的方向分别为: 求: 1)在不加入噪声的情况下,观察并计算协方差矩阵特征值,并对它的特点 加以说明 2)分别采用MUSIC算法,CAPON算法, ESPRIT算法在下面四种情况下,对 上述四个信号源的波达方向进行估计,并画出它们的空间谱图; ①在不加入噪声的情况下, ②在加入高斯白噪声的情况下,假设信噪比为10dB 3)在信噪比变化范围为-20dB~+20dB时,分别采用MUSIC算法,CAPON算 法, ESPRIT算法,对上述四个信号源的波达方向进行估计,并画出波达方 向估计误差,随着信噪比变化的曲线图(即横轴为信噪比,纵轴为误差值)()

文件列表:

用七单元线形天线阵(ULA)进行波达方向估计
.........................................\sissi
.........................................\.....\capon_sp.m
.........................................\.....\esprit_doa.m
.........................................\.....\P2.m
.........................................\.....\P3.m
.........................................\.....\peak_seek.m
.........................................\.....\通信信号处理作业.doc
.........................................\.....\通信信号处理作业:.ppt

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