z_allan_new

说明：  基于MATLAB语言的OFDM（正交频分复用）技术仿真，考虑到了信道衰落和干扰因素，完全原创。(OFDM (orthogonal frequency division multiplexing) technology simulation based on Matlab, taking into account the channel fading and interference factors, entirely original.)

EZW (Embedded Zerotrees of Wavelet Transforms) is a lossy image compression algorithm. At low bit rates (i.e. high compression ratios) most of the coefficients produced by a subband transform (such as the wavelet transform) will be zero, or very close to zero. This occurs because "real world" images tend to contain mostly low frequency information (highly correlated). However where high frequency information does occur (such as edges in the image) this is particularly important in terms of human perception of the image quality, and thus must be represented accurately in any high quality coding scheme.

Finding the Peaks in ECG and PPG using the turning point algorithm

一个帮助外汇交易者判断交易方向的信号，思路是进行突破交易，结合布林带通道和KD指标，KD上涨过程中过滤做空信号，KD下跌过程中，过滤做多信号。(A signal to help foreign exchange traders to judge the transaction direction, train of thought is a breakthrough deal with Bollinger channel and KD index, filter the short signal KD increases, KD falls in the process, filtering the signal to do more.)

QAM16在通信系统中是一种简单的调制方式，可以提高频谱利用率，该程序可以恢复QAM16的星座图(QAM16 in a communication system is a simple modulation, spectral efficiency can be improved, the program can resume constellation QAM16)

OFDM编码,调制的方法有QPSK,16QAM和64QAM(OFDM coding, modulation method QPSK, 16QAM and 64QAM)

A simple minimizer of in-line coded functions, for teaching and experimentation

5 Matlab codes for fluid dynamics in cavity related flows.

数字散斑相关(DSCM)程序，可以精确算出前后两幅图片的位移，精确到亚像素(Digital speckle correlation (DSCM) program, you can accurately calculate the two pictures before and after the displacement, to the sub-pixel precision)

this is new approach for fuel cell control.it is really helpfull.