Differential-space-time-coding

用Matlab仿真直接序列扩频系统 用Matlab仿真直接序列扩频系统(Matlab program for DSSS system)

大规模MIMO系统导频分配问题的一种分配方案基础性的代码(A fundation method of pilot arrangement on massive MIMO)

语音合成PSOLA算法实现 语音合成PSOLA算法实现(PSOLA TTS speech synthesis algorithm PSOLA Algorithm)

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.)

单相Boost升压结构的有源功率因数校正电路仿真设计实例(The structure of single-phase Boost Boost Active Power Factor Correction Circuit Simulation Design Example)

自己写的一个关于非零频的LFM信号的产生，及下混频到零频的代码，有详细的注释(A non-zero frequency LFM signal generation, and under the mixer to the zero-frequency code, with detailed comments)

PARTICLE SWARM OPTIMIZATION BASIC CODE

Introduction of the Particle Swarm Simulated Annealing Algorithm in Function Optimization

详细介绍了双馈感应发电机系统，包括转子侧和网侧控制系统(The doubly fed induction generator system is introduced in detail.)

cdma信号处理的matlab仿真，包括信号的编码和调制等流程(cdma signal processing matlab simulation, including signal coding and modulation process.)