基于加窗非均匀采样周期信号重建改进方法  

Advanced Method on the Reconstruction of Nonuniformly Sampled Periodic Signal Based on the Windowing Parameter Estimation and Adaptive Iterative Algorithm

作　　者：何丕雁[1] 陈光 

机构地区：[1]电子科技大学自动化系,四川成都610054

出　　处：《系统工程与电子技术》2002年第2期96-98,共3页Systems Engineering and Electronics

摘　　要：提出了一种基于窗函数正弦参数估计的重建非均匀采样周期信号迭代算法。该算法将非均匀采样值利用加窗正弦参数估计算法得到迭代初始值 ,然后利用最小化误差能量方法 ,求出迭代算法公式的自适应系数 ,最后重建原信号 ,可以在较少迭代次数下得到相当精确的结果。A new method based on window function sine-wave parameter estimation and iterative algorithm is presented to reconstruct the nonuniformly sampled periodic signal. In this method a windowing parameter estimation algorithm is first applied to obtain the initial value of iteration for the nonuniformly sampled record. Then the adaptive coefficient of the iterative algorithm is got based on the error energy minimization of each step. Finally, the original signal is reconstructed. The simulation result shows the effectiveness and superiority of the algorithm compared with the existing algorithms.

关 键 词：非均匀采样 窗函数 周期信号重建 

分 类 号：TN911.6[电子电信—通信与信息系统]