P1_code_shiftXalpha

实现模糊PID控制仿真，非常有用，编程人员只需简单修改参数即可。(Fuzzy PID control simulation, very useful, programmers can simply modify the parameters.)

the project is used for the customers to learn something(important)

FDWT (forward discrete wavelet transform) use 5/3 filter and 9/7 filter matlab file

hi this is a important

数字音频处理matlab程序，能生成多种声音特效，是学习数字音频处理的好资料。(Digital audio processing matlab program that can generate a variety of sound effects, digital audio processing is to learn good information.)

心音分析和心音文件,包含19个心音和分析程序(Analysis of heart sounds and sound files)

本文针对SLAM算法中数据关联过程，提出了一种简单易行的改进方法，将欧氏距离与马氏距离结合用于数据关联。算法不必计算地图所有特征与所有量测之间的马氏距离，而是首先利用相对简单的欧氏距离计算缩小了待关联特征的搜寻范围。利用人工合成数据的仿真结果表明，改进后的数据关联方法可以大幅减少系统计算量，提高关联效率，且不会造成错误关联的增加。(This article SLAM algorithm for data association process, a simple method to Euclidean distance combined with the Mahalanobis distance for data association. Algorithms do not have to calculate all the characteristics of the map with all measurements between the Mahalanobis distance, but the first to use a relatively simple calculation of Euclidean distance to be associated characteristics of narrowing the search. The use of synthetic data simulation results show that the improved methods of data association can significantly reduce the system to calculate the volume and improve the efficiency of association, and will not lead to errors associated with an increase.)

说明：  该代码实现了频谱感知中的能量检测方法，对于能量检测的认识能有更深入的了解(The code implements the energy spectrum sensing in detection methods, knowledge of the energy detection can have a better understanding of)

说明：  关于超宽带（UWB）一些信道的matlab仿真程序。(On ultra-wideband (UWB) channel matlab simulation of some procedures.)

用matlab播放《卡农》的程序，直接在命令窗口输入Canon即可(" Canon" program, directly in the command window enter the Canon can play with matlab)