Leach_code

DAB发送端仿真，包括编码，删余，QPSK映射，频率交织，差分调制，循环嵌缀，加NULL、PRS,IFFT，信道(DAB sending end simulation, including coding, cut more than, QPSK mapping, interwoven frequency, differential modulation, the cycle is made up of inlay, plus NULL, PRS, IFFT, channel)

详细的卷积编码与维特比译码算法。产生随机信号，对信号进行卷积编码，然后经过数值转换、格雷编码，QPSK调制，进入加噪信道，之后进行QPSK解调，格雷解码， 数制转换、 维特比译码得到接收端的信号。(Detailed convolutional coding and Viterbi decoding algorithm. Random signal, the signal convolution coding, and then through numeric conversion, Gray coding, QPSK modulation, plus noise into the channel, followed by QPSK demodulation, decoding Gray, number system conversion, Viterbi decoding to get the receiving end of the signal.)

振动信号预处理，主要为五点三次平滑法和平均法(Vibration signal pre-processing, mainly for the 5.3 second smoothing method and average method)

Incremental Conductance: In the incremental conductance algorithm, we find the derivative of PV output power with respect to output voltage. The dP/dV is evaluated and the algorithm keeps checking this value and changes the duty cycle such that dP/dV=- I/V = 0. This is the point at which maximum power is transferred. If dP/dV is greater than zero, it means the PV is operating to the left of the MPP. If dP/dV is less than zero, it means the PV is operating to the right of the MPP. This method holds an advantage over the perturb and observe method since it is fast and does not oscillate around MPP. However, the method could experience instability due the involvement of the derivative.

this file consists of matlab codes for portfolio optimization, codes are complete and a compelte example with some tests are included

正确率可以达到98％，IMC-PID是利用内模控制原理来对PID参数进行计算，鲁棒性好，性能优越。( Accuracy can reach 98 , The IMC- PID is using the internal mod)

cornell大学一篇关于OFDM仿真的论文（含matlab程序）(cornell University, a paper on the OFDM simulation (with matlab program))

AC motor, dq transformation,

对于目标优化，是一种种群算法，类似于遗传算法(The objective function of optimization algorithm )

QPSO算法,不会跑出定义域，依据一篇综述写的代码。(QPSO algorithm will not run out of the domain, based on a review to write code.)