BPSK-AWGN

蒙特卡罗法模拟高斯白噪声激励下二自由度振子的瞬态响应(Monte Carlo simulation of Gaussian white noise excitation vibration two degrees of freedom oscillator)

PMSM的矢量控制，坐标变化，三闭环，控制效果良好，波形不错(PMSM vector control, coordinate changes, three closed loop)

一些常用的matlab图像处理方法源程序代码，以方便大家使用(the common Image processing methods based on matlab )

说明：  非常详细的OFDM峰均比各种方法比较，带可复制仿真图！(OFDM PAPR very detailed comparison of various methods with simulation graph can be copied!)

说明：  时域sinc插值算法，例如：输入是采样于200sps的15Hz正弦信号。使用时域sinc插值将其重采样到400sps(Sinc interpolation algorithm in time domain)

Image contrast and resolution enhancement

RS分形算法matlab代码实现,既利用RS方法计算时间序列的分形hurst指数(RS fractal algorithm to achieve Matlab code, RS is calculated using time series fractal hurst index)

用matlab实现蚁群算法,再实际应用中很有作用(Ant colony algorithm using matlab implementation, then the role of the practical application of useful)

现需要在高度为600~700KM范围内，回归周期为30天的太阳同步轨道上布置一颗L波段的合成孔径雷达卫星。 1. 请设计合适的轨道参数，并仿真对应轨道下一个运行周期内星下点轨迹图（纬度和经度两个图）； 2. 计算多普勒中心频率，多普勒调频率与纬度的关系图（设姿态角为0°，天线视角20°~60°，推荐35°）； 3. 按高斯投影方式，将星下点轨迹图投影到地图坐标上。(Now requires a height of 600 ~ 700KM range, return period of 30 days are arranged on a sun-synchronous orbit L-band Synthetic Aperture Radar satellites. 1 Please design the appropriate orbital parameters and simulate the corresponding orbit within the next operating cycle nadir trajectories (latitude and longitude two graphs) 2. Calculate the Doppler center frequency, Doppler frequency and the relationship between latitude Figure (set attitude angle is 0, the antenna angle of 20 to 60, recommended 35) 3 Press Gauss projection, the nadir trajectories projected onto the map coordinates.)

This program support OFDM systems using 16QAM modulation. OFDM system utilize fft/ifft modules to transmit parallel data streams.