QAM4_OFDM_Demod

本人用石川法求齿轮的啮合刚度，完整版的程序，里面可以运行啮合刚度图(Meshing Stiffness of Gears Calculated by Ishikawa Method)

说明：  QPSK调制仿真与分析，使用matlab仿真实现QPSK相干调制与解调，通过AWGN信道，画出误比特率曲线(Generate digital baseband signal, add AWGN Gaussian white noise to transmit in the channel, detect the original baseband signal, draw theoretical and simulation error rate curve, QPSK modulation simulation and analysis, use matlab simulation to realize QPSK coherent modulation and demodulation, draw error rate curve through AWGN channel)

ITS PROOTOCOL OLSR AND CODE IS IN NS2

optisystem下相位调制的演示及解调演示(PM Demodulation Demonstrate under optisystem)

基带脉冲成形数字滤波器的MATLAB设计与DSP上的实现(shaping filter and dsp realize theory )

数字调制解调信号ask fsk bpsk qpsk 16qam 64qam(digital modulation and demodulation )

WSN中节点确定性部署算法代码，覆盖率达到100％，算法思路简单，易于实现(Uncertainty in the deployment of WSN node algorithm code, the coverage reached 100, algorithm idea is simple, easy to realize)

产生正弦信号时域波形及频谱，并通过希尔伯特滤波器。其中希尔伯特滤波器有两种产生方式，一是使用MATLAB自带的FDAtool；二是程序编写。(The time-domain waveform and spectrum of sinusoidal signal are generated and passed through Hilbert filter. There are two ways to generate Hilbert filter, one is to use FDAtool in MATLAB, the other is to write programs.)

说明：  Clarke_Jakes_Zheng模型matlab仿真(Clarke_Jakes_Zheng-matlab)

利用matlab实现OFDM的接收和发送，QPSK调制，IFFT串并转换(Receive and transmit OFDM, QPSK modulation, IFFT series-to-parallel conversion using MATLAB)