msk_demodulate

This is a matlab software package for butterworth band pass filter design. you could change the high pass and low pass frequency to design the betterworth filter.

只是一个关于用共轭梯度下降算法处理数据的程序，本程序处理的数据对象为MINST,该程序在线性搜索上有很好的效果(Only one on the use of conjugate gradient descent algorithm data processing procedures, the procedures for processing the data object is MINST, linear search for the program have a good effect on)

说明：  用matlab实现的fp树。目的是发现频繁项集，但是本代码只是实现了fp树(Fp tree with a matlab implementation. Aim is to discover frequent itemsets, but only realized the fp tree code)

局部均值分解是由Smith提出的一种新的非线性和非平稳信号分析方法。由于LMD是依据信号本身的信息进行自适应分解的，产生的PF分量具有真实的物理意义，由此得到的时频分布能够清晰准确地反映出信号能量在空间各尺度上的分布规律。(Local mean decomposition is a new nonlinear and non-stationary signal analysis method proposed by the Smith. Since LMD information is based adaptive signal itself decomposed, resulting PF component has real physical meaning, when the resultant frequency distribution of the signal can be clearly and accurately reflect the spatial distribution of the energy of each scale.)

灰色模型的改进程序算法，包括初值和背景值的改进，(Improved gray model, including the initial and background values ​ ​ improve)

说明：  两类二维相关正态分布条件下的最小错误率贝叶斯分类器，基于最小风险的贝叶斯分类器，Parzen窗法非参数估计分类器程序，Fisher线性判别法分类器程序。(Under normal conditions two types of two-dimensional correlation of minimum error rate of Bayesian classifier, the minimum risk-based Bayesian classifier, Parzen window method estimates non-parametric classification procedures, Fisher Linear Discriminant classifier program.)

求解线性不定方程组的一个基解（未知数个数大于方程个数），代码简单有效，可以利用该代码求出所有基解，从而得到不定方程组解得一般形式(A radical solution for solving linear equations uncertain (unknown number greater than the number of equations), the code is simple and effective, you can use the code to all base solution obtained, resulting in variable equations have the general form of the solution)

用于IS-95前向链路系统的仿真，包括扩频调制，匹配滤波，RAKE接收等相关通信模块。 (IS-95 forward link system simulation, including spread spectrum modulation, matched filter, RAKE receiver communication module.)

利用MATLAB对直扩信号的产生进行了研究，并利用FFT实现频谱分析(Use MATLAB to generate DS signals have been studied, and the realization of the use of FFT spectrum analysis)

此程序是OFDM的循环谱计算，希望对大家有用，(this procedure is the cycle OFDM spectrum, we hope to useful,)