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COFDM diseñ o y simulacion

Ecg beat detection in matlab

介绍了 Cohen类双线性时频分布并针对交叉干扰项影响无法完全消除的问题进行了重排时频变换以提取及分辨 含有白噪声和窄带周期干扰的局部放电信号。处理仿真和现场检测到的局部放电超声信号时根据白噪声和窄带 周期干扰信号在时域上的平稳性特性发现重排 Cohen类时频变换方法不仅可以很好地将局放信号和背景噪声以 及窄带周期干扰信号分辨开来,而且大大减弱并抑制了交叉干扰项的影响,保持了更高的时频分辨率和时频聚集 性,从而验证了重排 Cohen类时频变换方法的有效性。 (In order to express the partial discharge ( PD) information of gas insulated switchgear ( GIS) in time-frequency domain, weintroduced theCohen? s class bilinear time-frequency distribution and its reassigned time-frequency transform method to pick up and distinguish theultrasonic signals in field from the whitenoises and narrow band periodic interference signals using the acousticemission ( AE) technology. After the processing of the simulated and PD ultrasonic signals in field, and according to the stationary feature of white noises and narrow band interference signals, wedraw a conclusion that the reassigned time-frequency distribution method can not only distinguish thePD signal from back ground noises and narrow band interference signals, but also decrease and restrain the influenceof cross-items, and acquire better time )

matlab滤波算法 代码(filtering algorithm matlab code)

This function calculates the radial derivative of an input image. Input parameters: inputImage - the image to calculate the derivative from radialFilterLength - the length of the filter to use, total length will be 2*radialFilterLength+1 centerX and centerY - the point that is considered the center of the image, for the calculation minRadius and maxRadius - the minimum and maximum radius to calculate the angular derivative for. radialApproach - set to 1 to use a radius and angle search method, or 0 for a per-pixel approach

Throughput uation in cognitive networks

基于保偏光纤的Sagnac环透射谱仿真程序，可以用于计算自由光谱范围等(Based on the transmission spectrum of polarization-maintaining fiber Sagnac loop simulation program, and can be used to calculate the free spectral range and so on)

可以实现模式识别领域的数据的分类及回归，利用自然梯度算法，是机器学习的例程。( You can achieve data classification and regression pattern recognition, Use of natural gradient algorithm, Machine learning routines.)

说明：  小波分析从基础到高级应用的matlab源码例程~~(Wavelet analysis of matlab source routines ~ ~)

用自定义的基础，在一维时空信号上进行匹配跟踪。(Performs Matching Pursuit on 1d (temporal) signals with custom basis.)