lab

用matlab编写函数实现4qc运算，已经通过测试(Write a function with matlab implementation 4qc operations have been tested)

function of heed code

MATLAB实现短时傅里叶变换，短时傅里叶逆变换。直接配置好参数就可以用，实用性强。(MATLAB implementation of short time Fourier transform, short time Fourier inverse transform. Direct configuration of parameters can be used, practically.)

IEEE802.16系统规定的信道模型 适用于城市环境的SUI-3模型是WIMAX系统信道建模时的必备(Requirements for IEEE802.16 channel model applicable to the urban environment of the SUI-3 model is a WIMAX system channel modeling essential)

双曲线模型： 双曲线模型类似于 ，可以通过将x的倒数代换转化为线性模型来求。(Hyperbolic model )

the file get_PAT_PMT_PCR_add_NULL.rar can get MPEG2 ,PCR,same_PID_pcaket,PMT,PAT,add NULL packet,the file can help MPEG2(transport stream) user clean understand.(the file c get_PAT_PMT_PCR_add_NULL.rar get an MPEG2, PCR, same_PID_pcaket, PMT, PAT, add NULL packet, the file can help MPEG2 (transport stream) user clean understand.)

kalman滤波实现目标跟踪，对一个二维物体的跟踪(kalman filter)

进行各种图形变换，很有用的程序。图象处理程序，包括对比度拉伸，傅立叶变换，离散余弦变换，维纳滤波等等。 (It s the function for DIP. Image processing involves changing the nature of an image in order to either 1.improve its pictorial information for human interpretation, or 2.render it more suitable for autonomous machine perception. )

Function to give all combination of given input

一个完整的GNSS接收机Matlab源程序，包括从中频信号的捕获、跟踪、数据同步、解码、导航定位输出(A complete matlab source code for GNSS receiver including intermediate frequency acquisition racking synchronizationdecodingposition and navigation output)