To move source controlled folders and files 移动受源代码管理的文件夹和文件
2.
A new method for doa estimation in certain nonstationary environments is presented in chapter 4 . the maximum likelihood ( ml ) estimations of doa ' s of multiple rapidly moving sources is derived and the theoretical variance of angle estimation and the corresponding cramer - rao lower bound ( crlb ) are also given . its simulations show that this parametric technique is able to resolve closely spaced sources 提出了一种非平稳环境下的最大似然doa估计方法，该算法适合于时变doa的情形，并分析了其参数估计性能，给出了角度估计的渐进方差的解析表达式，表明了常规的最大似然doa估计是本文的一特殊情形。
