nonlinear_draw

This code and doucument describe the image segementation using active contore models [snake].

Fir implementation on MATLAB and ccs

说明：  RS码的C实现，通过mex接口，在MATLAB中创建的LTE下行链路中测试，可跑出误码率曲线。(RS code is implemented in C, by mex interface, LTE downlink created in MATLAB test can be run out of BER curves.)

identification for strong apperiodical processes.

维纳滤波语音增强算法:语音增强算法的维纳滤波器，通过scalart 1996提出的实现。使用一个决策指导的方法跟踪的先验信噪比。请注意，该信号的第一0.25sec用于模型的噪声，即，它是假定的演讲之后，0.25sec开始(Wiener Filter for Noisy Speech Enhancement, implemented as proposed by Scalart 1996. Uses a decision directed method to track the a priori SNR. Note that the first 0.25sec of the signal is used to model the noise, that is, it is assumed that speech starts after that 0.25sec)

通信信号中编解码技术的研究，通过生成OFDM信号，经过快速傅里叶变换与反变换，最后用16QAM解调，计算信噪比。(Communication signal encoding and decoding techniques, but by generating OFDM signals, through the fast Fourier transform and inverse transform, and finally with 16QAM demodulation, signal to noise ratio calculation.)

compare huffman code

自己编写的可能性c均值聚类算法。数据需要自己load，里面有main函数,改成自己的数据就可以运行。比模糊c均值更加鲁棒的一种聚类算法，缺点是容易产生重合聚类。(possibilistic c means clustering algorithm.)

用矩量法计算半波振子的电流分布、输入阻抗、E面方向图。(Calculated half-wave dipole moment method using the current distribution, input impedance, E plane patterns.)

UWB1000模块测试所得数据初步处理之后，已知锚点的坐标，可利用该文件里的程序解算标签三维位置。(After preliminary processing of data obtained from UWB1000 module test, the coordinates of anchor points are known, and the program in this file can be used to calculate the three-dimensional position of tags.)