原图象加上水印-dct1_recover

Tutorial of filter: design a lowpass FIR filter of cutoff requency 0.3*pi. Plot the impulse responses h(n) and magnitude responses of the designed filters

Some very interesting C introduction questions, created by me.

these codes used to implement OFDM transmitter and receiver with low out of band radiation. the number of subcarrier is flexible.

希尔伯特变希尔伯特变换 ，瞬时频率，边际谱换 ，瞬时频率，边际谱希尔伯特变换 ，瞬时频率，边际谱(希尔伯特变换 ，瞬时频率，边际谱希尔伯特变换 ，瞬时频率，边际谱希尔伯特变换 ，瞬时频率，边际谱)

文章Matrix Completion from a Few Entries实现的源代码(Article Matrix Completion from a Few Entries the source code)

说明：  基于Matlab的计算方法中常用的算法程序，包括高斯消去等(Based on the calculation of Matlab algorithms commonly used in procedures, including Gaussian elimination, etc.)

数字载波调制系统的matlab仿真程序，通过测试无误(digital carrier modulation system Matlab simulation, testing and unmistakably)

program for different combining schemes with different diversity

基于matlab的随机数的生成，包括其他调用的函数，(Random number generation based on MATLAB, including other call function )

DPDK官方手册，release note，可以作为参考(These release notes cover the new features, fixed bugs and known issues for Intel® Data Plane Development Kit (Intel ® DPDK) release version 1.7.0.)