fft_filter2015.3.23

混沌单用户csk调制仿真程序，计算了混沌调制的误码率性能(csk modulated single-user simulation program, the chaos modulation BER performance)

controller design for pendulum

混合高斯模型EM算法,对数据样本进行归类(EM algorithm by mixture gaussian model, calssify the data samples)

this document shows in a simple way the transformation of near field to far field.Also we can attain far field of an antenna by using that.

把区域划分成矩形网格，找到每个网格的中心点，把每个网格当做一个圆环计算每个圆环的磁场，然后调用linprog函数就求出场分布了。不要求你把线圈矩形化，也不要求屏蔽场。(The region is divided into rectangular grids and the center points of each grid are found. Each grid is used as a circle to calculate the magnetic field of each ring, and then the field distribution is called by the linprog function. It does not require you to rectangle the coil, nor does it require shielding.)

说明：  基于matlab研究地震勘探数据处理的源代码 ，matlab相信大家都知道，功能相当强大。很容易上手(Research based on seismic data processing matlab source code, matlab I believe we all know, quite powerful. Very easy to use)

matlab中的数据插值描述，和大家一起分享参考(Matlab interpolation of data description, and others together to share information)

lssvm最小二乘支持向量机的主程序，最基本的程序(lssvm the main program, the basic procedures)

本资料包含了系统的matlab建模用算法(This information includes system modeling with matlab algorithm)

说明：  基于MATLAB的DSP调试方法,很详细的说明，对初学者很有帮助(MATLAB-based DSP debugging method, very detailed instructions, helpful for beginners)