kalman1

我们的目的是将一个分数拆分成若干个分子是1分母是正整数的分数之和的形式。例如2/3可以拆分成1/2+1/6的形式。这里不考虑顺序，比如1/6+1/2和1/2+1/6相同。 输入p, q, a, n, 其中p/q为分数，对这个分数进行拆分，要求拆分的分数个数不能多于n个，所有分母的乘积不能大于a。求有多少种拆分方法? 输入：最多200组数据。在每行中都有四个数分别表示p, q, a, n，之间以空格隔开，并且满足p,q<=800，a<=12000，n<=7，最后以四个0做为输入的结束。 输入示例: 2 3 120 3 2 3 300 3 0 0 0 0 输出示例: 4 7 (Our aim is to split a fraction into a number of elements is a denominator is a positive integer fraction of the sum of form. For example, 2/3 can be split into 1/2+1/6 form. Not considered here, the order, such as 1/6+1/2 and 1/2+1/6 of the same. Input p, q, a, n, where p/q as a fraction of this split scores require no more than the number of split points n-all the product of the denominator can not be larger than a. How many kinds of demand split method? Input: Up to 200 sets of data. In each line has four numbers indicate the p, q, a, n, separated by a space between, and meet the p, q < = 800, a < = 12000, n < = 7, the end, four 0 as the input end. Input Example: 2,312,032,330,030,000 sample output: 47)

基于简化的PCNN去除脉冲噪声的matlab算法(Based on a simplified PCNN algorithm to remove impulse noise matlab)

说明：  数值计算长周期光纤光栅(Numerical Calculation of long-period fiber grating)

无刷直流电机混沌吸引子，q、d轴电流与电机转子相位图(Brushless DC motor chaotic attractors, q, d-axis current and the motor rotor phase diagram)

光纤相干通讯数字相干接收机，算法和子系统。一篇很精简全面的总结。(Digital coherent optical receiver algorithms and subsystems in fiber coherent optical communication. A very good brief summary.)

计算最小生成树，求解最短距离问题,matlab程序代码（注：不是只是两点之间最短路径，不是遍历问题）。(solve the problem of the shortest path.)

此程序主要是详细给出了在matlab中如何求解信号的fft，包括功率谱，功率谱密度，幅度谱；(This procedure is given in detail how to solve the signal in matlab fft, including power spectrum, power spectral density, amplitude spectrum )

说明：  UFMC_OFDM传输 第5 代无线通信系统的关键技术之一，详细细描述了UFMC系统的发送和接收的仿真实现过程(Ufmc OFDM transmission One of the key technologies of the 5th generation wireless communication system, the simulation process of sending and receiving of ufmc system is described in detail)

将有限元软件到处的数据转换成txt，很好用哦(Full data of the finite element software to convert txt, very easy to use!)

Okumura模型有关c++的编程 此程序仿真了三个模型(The c++ programming Okumura model of this program, the simulation three model)