时延估计软件包设计

Software Package Design for Time Delay Estimation

基于时延估计的软件包,包括相关和广义相关、相关峰内插和自适应滤波算法、自适应内插、高阶累积量自适应时和双谱等8种典型时延估计算法。该软件包采用交互式人机对话,均可用输出图形方式表示计算结果,所采用的测试信号可方便替换。其数据长度、信噪比可手工输入设置,以便于在各种方法之间进行比较和评估。

Based on time delay estimation, the software package contained eight classical types of time delay estimation methods was designed. These methods include correlated method, two kinds of generalized correlated time delay estimation method, an inner interpolation algorithm of the correlation peak, adaptive filtering, adaptive interpolation, adaptive approach using third-order cumulate and bi-spectrum method. Human-computer interaction interface was used in the software package and the result could be showed with graph .The test signal could be changed easily, the length of data and the signal-to-noise ration could be inputted manually. So, it was easy to compares the effect between different methods.