speech-enhancement

文章中建立了被动式导引头的模型，并对其仿真分析(Established a model of passive seeker, and the simulation analysis)

用稀疏表示人脸识别，其中在求解l1范数的部分的matlab源码。(Sparse representation for face recognition, solving l1 norm matlab source.)

采用AHP方法，采用比较矩阵，对各层目标参数进行权重分配(AHP method using the target parameters weight distribution)

Search optimization function matlab

关于距离扩展目标-分形理论检测方法的matlab实现程序(About distance expansion goal- matlab fractal detection method to achieve program)

说明：  实现多尺度熵的算法 多尺度熵（Multiscale entropy, MSE）将样本熵扩展到多个时间尺度，以便在时间尺度不确定时提供额外的观察视角。样本熵的问题在于它没有很好地考虑到时间序列中可能存在的不同时间尺度。为了计算不同时间尺度下信号的复杂性，Costa等人（2002,2005）提出了多尺度熵。(MultiScale Entropy There has been considerable interest in quantifying the complexity of physiologic time series, such as heart rate. However, traditional algorithms indicate higher complexity for certain pathologic processes associated with random outputs than for healthy dynamics exhibiting long-range correlations. This paradox may be due to the fact that conventional algorithms fail to account for the multiple time scales inherent in healthy physiologic dynamics. We introduce a method to calculate multiscale entropy (MSE) for complex time series. We find that MSE robustly separates healthy and pathologic groups and consistently yields higher values for simulated long-range correlated noise compared to uncorrelated noise.)

QPSK modulation system with recover loops(This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.)

利用Contourlet、ICA、混沌粒子群分离去噪(Using Contourlet, ICA, separation of chaotic particle swarm denoising)

Artificial Intellegence: backpropagation

一些混沌系统原文件和李雅普落夫指数的计算(some of the original documents chaotic system and Li-fu Yap index calculation)