摘要
所要传输的已知单周期PN码信号是通过多条带有加性噪声的路径到达接收端,因此问题就在于估计路径的数目以及与每一条路径相对应的小于单个码片间距的时延和衰落幅度。文中在基于最小L1范数的加性调整条件下,提出了一种新的去卷积方法。由此衍生出的最优化问题则通过转化为二次规划,利用其标准程序进行简便快捷的求解未知量。在复杂的条件下这种方法比其他方法更加的适用。
A transmitted and known PN code signal is observed at the receiver through more than one path in additive noise .The problem is to estimate the number of paths and the associated attenuation and delay for each of them, which is less than a chip interval. A deconvolution approach with an additive regularization term built around an minimal L1 norm is proposed. The underlying optimization problem is transformed into a quadratic program and is, thus, easily and quickly solved by standard programs. The method is more suitable for complex conditions than other ones.
出处
《通信技术》
2008年第2期1-3,共3页
Communications Technology
