qpsk_ber_sevelchannel

bsxfun, 一個matlab中十分常用的函數. 可以快速地對matrix進行接位複合運算~~(bsxfun, a very commonly used in the matlab function. can quickly take place on the matrix for composite operator ~ ~)

针对粒子群优化算法应用于约束优化问题时易陷入局部极小值的问题, 提出了一种改进的粒子群优化算 法. 该算法综合了约束优化问题的目标函数值和约束函数的违反度值作为粒子群优化算法的双适应度值, 采用了 双适应值动态判断粒子群优化算法中粒子的优劣. 违反度值的计算引入了自适应加权系数, 相应地提出了调整各 权系数的自适应策略, 并改进了粒子群优化算法的粒子竞争选择策略, 拓展了粒子群优化算法的单适应值的应用 范围.应用约束自适应粒子群优化算法实现了城市水厂的节能优化调度. 结果表明, 该算法收敛速度快且结果可 靠. 粒子群优化算法为解决工程约束优化问题提供了一条可行途径(Considering that theparticleswarmoptimization( PSO) algorithmcanbeeasily trappedinto the local minimal valueinconstrainedoptimizationproblems, amodifiedconstrainedparticleswarmoptimiza
tionalgorithmwasproposed. Theobjective functionvalue andthe violationvalue of constraint functions wereeffectively combinedto formtwofitnesses, andthefitnesseswereadoptedto estimate if theparticle wassuperior or not ina dynamicway. Theadaptiveweight functionwasadoptedinthe calculationof the violationvalue. The strategy of keeping anadaptive relationof weight coefficientswasproposed, andthe strategyof swarmtournament selectionwasimproved. Theapplicationlocalizationsof thesinglefitnessof PSOwerewidenedaswell. ThemodifiedconstrainedPSOalgorithmwasappliedtosolveenergyoptimiza
tionproblemsof theurbanwater supplyprocess, whichshowedthat theconvergent speedof thealgorithm isfast andthe result isvalid. Afeasibleapproachto solvetheindustrial constraint optimizationproblems withPSOwasprovided.)

本程序可以实现具有较好相关性的ZC序列，其时频两域相关性很强(The program can achieve better correlation with the ZC sequence, time and frequency domain strong correlation)

模糊isodata算法matlab程序；fuzzyisodata的matlab程序。很好很实用。(fuzzyisodata program)

本程序包含有大量的计算程序，能计算天体力学的各种问题，含有大量的函数库和数据，是一个非常强大的计算工具。(Celestial Computing with MATLAB is a comprehensive collection of MATLAB functions,scripts and data files that can be used to solve a variety of problems in fundamental and advanced celestial mechanics.)

与奥本海姆 的《信号与系统》经典教材配套的习题解哦(Solution Oh Oppenheim " Signals and Systems" classic textbook exercises supporting)

说明：  声品质中的响度，尖锐度，粗糙度以及起伏度四种声品质参数计算matlab例子编程(he calculation of loudness, sharpness, roughness and undulation in sound quality by MATLAB)

Linear Convolution Algorithim

本程序功能为计算一阶双曲型偏微分方程的初值问题,采用Lax-Friedrichs格式计算。(The program features to calculate the first order hyperbolic partial differential equations of the initial value problem, calculated using the Lax-Friedrichs format.)

说明：  LLC谐振变换器、软开关的控制策略算法，包括PWM、PFM等控制策略(LLC converter\soft switching control strategy algorithm.including control strategy of PWM\PFM)