KDA_QR

飞行器航迹曲线,三维空间仿真,包括直行,爬升,转弯,俯冲等等运动姿态(Aircraft flight path curves, three-dimensional simulation, including straight, climbing, turning, diving, etc. sports gesture)

曲柄滑块机构的机构组成，速度方程以及匀角速度运动学仿真框图(Of the institutions of the slider-crank mechanism, the rate equation and the constant angular velocity kinematics simulation diagram)

simple implementation of a morse code project

OFDM-Chirp波形的自模糊函数和互模糊函数，文件夹里面带了计算自模糊函数和互模糊函数的MATLAB文件ambgfun.m，不必用解析法做。带的ambgfun.m复制于MATLAB2017B能计算自模糊函数和互模糊函数(Self-ambiguity function and cross-ambiguity function of OFDM-Chirp waveform, which is calculated by MATLAB file ambgfun.m rather than by analytic method.)

说明：  标准遗传算法与多种群遗传算法Matlab代码，求解函数最值，GA包含交叉变异。多种群遗传算法MPGA包含移民操作。(the standard genetic algorithm and a variety of group genetic algorithms matlab code to solve the function maximum, GA contains cross variation. multiple group genetic algorithms MPGA contain immigration operations.)

PSK31 Model with Symbol Timing and Carrier Recovery(This model implements a communication standard known as PSK31. The transmit portion of the model can either synthesize the PSK31 signal, or use real world signals that were captured as Wave files. The receiver features include: Automatic Frequency Control, Automatic Gain Control, Symbol Timing recovery with a fractionally spaced Farrow interpolator, Decision Directed Carrier Phase Lock Loop, dbsk or dqpsk demodulation with FEC. References are provided in the Model.)

用stateflow做的整流例子，仿真通过。(Rectifier with stateflow examples do)

说明：  自己学习的，总结的，不是很好，大部分是书上的，最起码还游泳吧(Their own learning, lessons, not very good, mostly books, at least also swimming)

《MATLAB语言与自动控制系统设计》pdf，很好的资料。(MATLAB language and the automatic control system design with the book resources, good information. )

协作频谱感知虽然可提高系统的感知性能， 但随着感知节点数目的增加， 系统资源的占用越来越多， 系统传输效率下降． 分析了协作频谱感知方法的感知性能， 得到协作频谱感知的感知性能与感知节点数目和接 收信噪比之间的关系， 提出了一种新的次级用户节点的选择方法， 该方法有效保证了所选择节点的感知性能， 仿真验证了该算法的有效性和可靠性．(Although the cooperative spectrum sensing can improve the perceived performance of the system, but with the perception of the number of nodes increases, more and more system resources, the system transmission efficiency decreased. Cooperative spectrum sensing method of analysis of the perceived performance of collaborative spectrum sensing by the perception of performance and perception of the number of nodes and the relationship between the received SNR, a new secondary user node selection method, which effectively guarantee perceived performance of the selected node, the simulation proves the validity and reliability.)