DS_PCA

几个图象处理程序，用不同的方法进行图象重建(several image processing procedures, use different methods for image reconstruction)

二维FDTD 实现电磁场的二维分析。源代码。可以为FDTD初学者提供便利(Two-dimensional FDTD to achieve two-dimensional electromagnetic field analysis. Source code. FDTD beginners can facilitate)

仿真未编码和进行Hamming编码的QPSK调制通过AWGN信道后的误比特率性能(Hamming coding and for the simulation are not encoded by QPSK modulation in AWGN channel, the bit error rate performance)

大学教材中数值计算引论中的matlab程序(University textbook Introduction to the numerical calculation matlab program)

巴克码的模糊函数，线性调频信号模糊函数，单脉冲信号模糊函数，脉冲串模糊函数，PRN code模糊糊函数()

说明：  用牛顿下山法求解方程：下山因子在计算过程中可以变动，一般选择下山因子时从1开始，逐次将减半进行试算，直到能使下降条件成立为止。若当计算到某步时取不到满足要求的值（或值小到无法容忍），这时称“下山失败”，需要另取初值重新算起。(Descent method with Newton' s equation: down factor in the calculation process can change, usually selected from the 1 start down factor, will be halved for successive spreadsheet until the can down the conditions established. If when calculating the time to take a step not meet the requirements of the value (or values ??too small to tolerate), then the &quot down failed&quot , you need an alternative initial re-counting.)

加权波束形成形成，简单实用(Weighted beamforming formation, simple and practical)

此代码用于完成MRI图像的压缩采样重建。它是论文"Sparse MRI: The Application of Compressed Sensing for Rapid MR Imaging", 2007中的源码(This is an implementation of Compressed Sensing reconstruction for MRI data. It implements the non-linear conjugate sub-gradient algorithm as described in the paper "Sparse MRI: The Application of Compressed Sensing for Rapid MR Imaging", 2007 Magn Res Med, In Press. )

仿真分析了MSK传输的数据，差分后的数据、加权前的I,Q路、加权后的I/Q路及MSK调制后的信号(Simulation analysis of the the MSK data transmission, differential data, weighted before I, Q Road, weighted I/Q Road and MSK modulation signal)

pulse code modulation using u-Law