jbd_common

自适应谱线增强问题，计算两个输入信号序列的自相关函数，选择合适的步长，以实现输出信号谱线的增强(Adaptive line enhancement problem, the calculation of two input signal sequence auto-correlation function, select the appropriate step in order to achieve enhanced output signal spectrum)

子载波的分配 考虑每个带宽的大小 及子信道的噪声 最后得出每个基站到用户的分配(Consider the allocation of subcarriers for each channel size and bandwidth of the noise and came to the conclusion of each base station to the user' s allocation)

This a self-contained package including the 2-D DWT and inverse DWT routines. The included matlab routines are used to generate noisy example images and disply the result of denoising.

求解微分方程（这里指的是常微分方程）指含有一次、二次、乃至高次微分未知数的方程。是解决偏微分方程、数理方程的基础。有许多特殊函数，都是为了无法得出多项函数或超越函数型式的解析解的微分方程而定义出来。这些特殊函数之所以重要，是因为它们描述了自然界中的某些现象，例如，电子的活动、鼓皮的振动、钟摆的摆动等等。(Solve differential equations (in this case is the ordinary differential equation) means containing one, two, and even high-differential equations unknowns. Is to solve the partial differential equations, mathematical equations based. There are many special functions, are not drawn to a number of functions or functions beyond the type of analytical solution of differential equations which define them. These special functions are important because they describe the nature of certain phenomena, for example, electronic activities, drum skin vibrations, pendulum swing, and so on. )

计算BPSK在AWGN下得误码率。其中，设置高斯白噪声的功率为1，也即是归一化功率(calculate the BER of BPSK under AWGN channel)

数值方法解方程组AX=B（LU分解），过程分3步，首先，分解系数矩阵A=LU，然后，解LY=B，最后再求UX=Y 另一种是直接求解的（2.1）(Numerical method to solve the equations AX = B (LU decomposition), 3 step process, first of all, the decomposition of the coefficient matrix A = LU, then, Xie LY = B, and finally seek UX = Y another directly solving (2.1 ))

leach matlab code for wireless sensor networks

pca and fisher implementation in matlab for feature extraction

说明：  用遗传算法进行多元函数的优化，是测试函数与数据集的基本方法(Using genetic algorithm to optimize multivariate function is the basic method of testing function and data set)

说明：  隐马尔可夫模型工具箱使用说明，以HMM工具箱的一个例子作为使用示范。(Hidden Markov Model Toolkit for use to HMM toolbox as an example of a demonstration.)