elifvodv

analog communication AM

时频分析工具箱,需要的人可以试试,还不错(time-frequency analysis toolkit, the people can try out, quite good)

递归法求解整数划分。 整数划分，是指把一个正整数n写成如下形式： n=m1+m2+…+mi （其中mi为正整数，并且1 <= mi <= n），则{m1,m2,...,mi}为n的一个划分。 如果{m1,m2,...,mi}中的最大值不超过m，即max(m1,m2,...,mi)<=m，则称它属于n的一个m划分。这里我们记n的m划分的个数为f(n,m) (Recursive method integer division. Integer division, refers to a positive integer n written as follows: n = m1+m2+ ...+mi (where mi is a positive integer, and 1 < = mi < = n), then {m1, m2, ..., mi} is a division of n. If {m1, m2, ..., mi} does not exceed the maximum value of m, i.e., max (m1, m2, ..., mi) < = m, m n is said that it belongs to a division. Where m is the number of division n our mind is f (n, m) )

the source is in the "Applied Numerical Methods Using MATLAB-Won Young Yang, Wenwu Cao, Tae-Sang Chung, John Morris-Wiley-Interscience (2005)"

说明：  自相关函数求解代码，可以求取信号的自相关函数(Autocorrelation function to solve the code, you can strike a signal autocorrelation function)

CA码发生器gold码可作为gps仿真的信号发生器(generate ca code)

该程序为matlab程序，共有三个文件，dataC.m为程序入口，实现功能对50组数据用k均值算法进行分类，再对40组数据用感知器算法训练，然后用训练得到的判别函数对剩下10组数据分类，最后与原始分类做差比较，若分类无误，则全显示为0.(Matlab program on the program, a total of three files dataC.m for program entry features 50 sets of data with k-means algorithm to classify 40 sets of data with the training of the perceptron algorithm, and then using the trained discriminant function The remaining 10 sets of data classification, and finally with the original classification poor comparison, if the classification is correct, then the whole show.)

二维连续傅里叶变换二维连续傅里叶变换二维连续傅里叶变换二维连续傅里叶变换(Continuous two-dimensional Fourier transform two-dimensional continuous Fourier transform two-dimensional continuous Fourier transform two-dimensional continuous Fourier transform)

用希尔伯特黄变换（HHT）求时频谱和边际谱(Using Hilbert Huang transform (HHT) to find the spectrum and marginal spectrum)

说明：  matlab code of channal2