flooding

基于块状导频的信道估计仿真，有LS,LMMSE信道估计算法(Based on the pilot block channel estimation simulation, has LS, LMMSE channel estimation algorithm)

don t atcually remember what it is but probably it s something useful for student of 1-2 grade

This tutorial is a MATLAB code shows how to implement Finite Difference Time Domain (FDTD)

经验模态分解算法（EMD）求解本征模函数(Empirical mode decomposition method (EMD) to solve the intrinsic mode functions)

此程序可以实现图像间的融合拼接，效果很不错！(This procedure can achieve the integration and connection between the image, the effect is very good!)

Forstner算子，摄影测量重要算子，用于提取兴趣点(Forstner operator, photogrammetry important operator, used for extracting points of interest)

Savitzky Golay filter used on ECG signals.

第一：边界加强，通过估计噪声和实际信号的比值，来确定各个尺度的细节系数，以达到噪声抑制和边界加强。第二，通过对小波分解的近似部分进行直方图均衡，达到加大整幅图片的对比度，而不太影响细节的目的。(First: to strengthen the border, through the estimates and the actual signal noise ratio, to determine the details of each scale factor, so as to achieve noise suppression and boundary strengthening. Secondly, the wavelet decomposition of the approximate portion of histogram equalization to increase the contrast of the whole images, and do not affect the details of the purpose.)

benchmarks several versions

说明：  平行射线滤波反投影，算法简单，通过对投影滤波后，重建的图像效果好。(Parallel rays filtered back projection algorithm is simple, by filtering the projection, the reconstruction of the image effects.)