dingwei

时变多径信道的matlab仿真（通过输入多普勒频移，时延变量等参数）(Multipath channel simulation)

DS-CDMA链路中加入基于子空间的PASTd多用户检测方法。系统中采用m序列阔频，可以通过高斯信道或瑞利信道。可以直接运行得到不同信噪比下的误码率曲线。(DS-CDMA link added Subspace-based multiuser detector PASTd. M sequence used in the system wide-band, Gaussian channel, or by Rayleigh channel. Get different signal to noise ratio can be run directly under the BER curves.)

说明：  基于matlab2014b平台，求解非线性方程数值解的程序，数学建模可用。(Based on MATLAB 2014b platform, the program of solving the numerical solution of nonlinear equation, mathematical modeling is available.)

信源产生、信道编码、调制、信道传输、解调、信道译码、差错比较等通信过程的Simulink仿真方法。分析几种调制方式（2FSK、2PSK、QPSK、16PSK、16QAM）在不同信噪比下的通信质量。(Generated source, channel coding, modulation, channel transmission, demodulation, channel decoding, error comparison of the communication process of the Simulink simulation. Analysis of several modulation (2FSK, 2PSK, QPSK, 16PSK, 16QAM) in different SNR communication quality.)

说明：  这是一个用c#实现的GPS定位系统软件，你只需输入所要查询的城市名就会连接到地图，你可以对其执行放大，缩小，左移，右移，上移，下移等操作，非常实用，绝对值得，希望对您有帮助 (A software about the GPS positioning system.You can search for a city which is linked to the map,just by inputting the name,and also you could make it bigger,smaller,move left,right,up and down.You won t miss it.)

pmsm电机仿真。非常有参考价值 ，欢迎参老(pmsm motor simulation. Very valuable, and welcome to participate old)

说明：  频率选择性信道下无编码OFDM系统的误码率曲线。(BER of OFDM signals in FS channel without coding)

此编程是对于平方解调和希尔伯特解调分析的展示，希望能够帮到大家(This programming is for the square demodulation and Hilbert demodulation analysis of the show, hoping to help everyone)

说明：  这是一个通信的Nakagami算法，理论值和仿真结果全都有，希望对大家有帮助。(This is a Nakagami algorithm for communication. Both theoretical and simulation results are available. I hope it will be helpful to you all.)

通信基本仿真,适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器（巴特沃斯Butterworth,切比雪夫Chebyshev）,Bartlett周期图谱，加窗Bartlett周期图谱，基带波形仿真，IIR的贝塞尔滤波器Bessel Filter，二进制对称信道Binary Symmetric Channel仿真，比特序列，Remez滤波，BPSK复合基带信号仿真，载波生成器，椭圆滤波器Elliptical Filter，FFT,FSK调制及解调，高斯噪声Gaussian仿真，直方图，理想AM，线性PLL，BP混淆器，理想MPSK，正交振幅调变（QAM，Quadrature Amplitude Modulation），正交相移键控(QPSK)，Rayleigh Noise瑞利噪声，Yule-Walker Psd功率谱密度函数。(Butterworth Chebyshev)