xcorr_fft

smth apsk simulation program, including land-side, the originator, channel, as well a apsk modulation methods used for school data modulation

该方法适用于解决阶数比较大的线性方程组，从理论上讲这种方法是收敛的，而且具有较好的可操作性(this method is suited for some complex equation)

Energy Detection technique for spectrum sensing

滤波器高斯噪声信道模型和jake s信道模型下的加入卷积码的二进制相位调制(bpsk and convolution on the filtered gaussion noise channel model and jake s model)

分析信号谱峭度根据最相关性，提取敏感频段，进一步分析。(The kurtosis of the signal spectrum is analyzed according to the most relevance, and the sensitive frequency bands are extracted for further analysis.)

Drop fall algorithm used to segmentate digits

lte parameters like ofdma ,sc fdma,block source bandwidth,channel types

一个小巧有限元计算软件fem的licence和一个例子(A compact fem finite element software and an example of licence)

Video frame extraction & separating unwanted part of each frame

面向用户的数据拟合工具箱，采用matlab工作环境(Fitting Toolbox for data users, the working environment by matlab)