bpsk

连续小波变换：小波函数与原信号对应点相乘，再相加，得到对应点的小波变换系数，平移小波基函数，再计算小波函数与原信号对应点相乘，再相加，这样就得到一系列的小波系数。对于离散小波变换（由于很多小波函数不是正交函数，因此需要一个尺度函数）所以，原信号函数可以分解成尺度函数和小波函数的线性组合，在这个函数中，尺度函数产生低频部分，小波函数产生高频部分。(Continuous wavelet transform: a series of wavelet coefficients are obtained by multiplying and adding the corresponding points of the original signal, translating the wavelet basis function, and calculating and adding the corresponding points of the original signal. For discrete wavelet transform (many wavelet functions are not orthogonal functions, so a scale function is required), the original signal function can be decomposed into a linear combination of scale function and wavelet function, in which the scale function generates the low frequency part and the wavelet function generates the high frequency part.)

说明：  捷联惯导系统传递对准MATLAB程序，跟踪且时间延迟。(SINS Transfer Alignment MATLAB procedures, tracking and time delay.)

stenography a dip technique good one

GPS 捕获跟踪程序，用的是PMF-FFT捕获方法。门限设置为0(GPS capture and tracking procedures, using the PMF-FFT capture method. Threshold set to 0)

超宽带无线通信 脉冲调制系统 加了导频脉冲后的系统 matlab程序 很不错的 (ultra-wideband wireless communications pulse modulation system plus the pilot pulse system Matlab procedure very good)

说明：  6. 在三条径的瑞利信道中，对于OFDM： (1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真。画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。 (2) 设频率已同步，请设计OFDM一种具体的采用循环前缀进行时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已同步，请设计OFDM一种具体的采用循环前缀进行频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(6. In the three-path Rayleigh channel, for OFDM: (1) please design a specific navigation-assisted channel estimation method and use Simulink for simulation.The relation curves of bit signal-noise ratio and channel estimation mean square error and the relation curves of bit signal-noise ratio and bit error rate are drawn. (2) if the frequency has been synchronized, please design a specific method of time synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit-snr and acquisition probability. (3) if time has been synchronized, please design a specific method of frequency synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit signal-to-noise ratio and frequency synchronization error.)

MATLAB串口操作官方教程（2014版）v1.2,轻松解决串口通讯(MATLAB serial operation of the official tutorial (2014 Edition) v1.2, easy to solve serial communication)

matlab串口通讯实例,是初学matlab串口的好例子(Matlab serial communication example, is a good example of beginners matlab serial)

ieee 39 节点，用于电力系统网络测试(ieee 39-bus test system, used to test the electricity system)

GPS MODEL DEMO SIMULINK/MATLAB