qpsk_modulation

适用于初学者学习matlab语言熟悉matlab开发环境，学习基本操作命令(Suitable for beginners to learn the matlab language familiar matlab development environment, to learn the basic operation command)

基于等式约束和不等式约束的非线性规划的混合型惩罚函数优化方法(Based on equality and inequality constrained nonlinear programming mixed penalty function optimization)

首先给出了谐波小波时频剖面图检测含噪声信号的微弱奇异成分的方法 然后运用谐波小波时频剖面图方 法分析了碰摩故障仿真信号 最后利用该方法对多个实际汽轮机组动静碰摩故障的真实振动信号进行了分析研 究。结果表明, 谐波小波能够得到其它信号分析方法无法得到的特征, 有效识别机组的碰摩故障。(Harmonic wavelet time􀀁 frequency profile plot is introduced firstly in practice to identify weak singularity in a signal with noise clearly. With this method, emulational signal and vibration data of the rubbing of the large practical turbo-generator units are analyzed successfully, which prove that the method is effectively extract the rubb ing signal feature.)

说明：  旋转不变性子空间（ESPRIT）类算法需要对阵列接收数据协方差矩阵进行特征分解。ESPRIT 类算法是利用接收数据协方差矩阵的信号子空间的旋转不变性，它利用各子阵的信号子空间之间的旋转不变性求出信号的入射角信息。(Rotation invariant subspace (ESPRIT) algorithms need to decompose the covariance matrix of array received data. ESPRIT algorithm is based on the rotation invariance of the signal subspace of the received data covariance matrix. It uses the rotation invariance between the signal subspaces of each subarray to obtain the incident angle information of the signal.)

图像的统计独立分量分解程序包，可以用于人脸识别，非监督分类，信号提取等领域(Image independent component decomposition of the statistical package, can be used for face recognition, non-supervised classification, the fields of signal extraction)

Create a noiselet matrix

小波包分析提取振动信号中的特征频率，wolf 方法计算李雅普诺夫指数,计算互信息非常有用的一组程序。( Wavelet packet analysis to extract vibration signal characteristic frequency, wolf calculated Lyapunov exponent, Mutual information is useful to calculate a set of procedures.)

一种用于ＧＭＳＫ非线性调制的自适应均衡算法　，包阔有算法的文档资料(a nonlinear GMSK modulation for the adaptive equalization algorithm, the width of a packet algorithm Documentation)

实现Gabor滤波的源代码，包括C++、matlab源程序，Gabor提取图像特征原理及其matlab实现。(Gabor filtering source code, including C + +, matlab source code, Gabor extract image features principle matlab.)

matlab dsp(1． 利用自相关函数法和周期图法实现随机信号的功率谱估计。 2． 观察数据长度、自相关序列长度、信噪比、窗函数、平均次数等对谱估计的分辨率、稳定性、主瓣宽度和旁瓣效应的影响