Morphy

这是一个使用matlab实现小波变换的程序(This is a realization of the use of wavelet transform matlab program)

对任意概率的输入，实现2元HUFFMAN编码的MATLAB(The probability of any input to achieve two yuan HUFFMAN coding the MATLAB)

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.)

本程序为多维面阵的波达方位估计的程序，用于面阵俯仰角方位角定向(DOA DOA estimation procedures for multi-dimensional planar array of procedures for the azimuth orientation of the pitch angle of the plane array)

可以用来求任意形式矩阵的正交矩阵，同时可以用来进行矩阵的QR分解(Can be used to seek any form of matrix orthogonal matrix, the matrix also can be used for the QR decomposition)

matlab从入门到精通,让你更加快速掌握matlab(matlab from entry to the master)

亚波长抗反射结构图，可以显示投射率的变化大小(subwavelength antireflect)

声纳技术 常用水声信号及其处理方法 内容：1）CW信号；2）LFM；3）谱分析；4）自相关 (Sonar technology)

对正弦信号进行简单的频谱分析，变换采样频率和信号持续时间(A simple sinusoidal signal spectrum analysis, changing the sampling frequency and signal duration)

搭建了一个OFDM系统，并用基于导频的方式进行了信道的估计，最后画出了系统在3条径下的瑞利信道时误比特率随信噪比的变化。(bulid a OFDM system,make channel estimation based on pilot signal,finally,plot ber when SNR changed)