MATLAB-mathmetical-guidance

对水印图像进行置乱，然后嵌入到载体图像小波域中的细节子带中(the watermark image is Scrambled, and then embedded into the details of wavelet sub-band domain)

Code to wake up the pc standby or hibernation

运动检测matlab程序和广义高斯分布的matlab程序(motion detection procedures and Matlab Generalized Gaussian distribution of Matlab procedures)

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.)

压缩感知magicL1算法重要程序，能在压缩采样条件下精确重建(Compression algorithm magicL1 important perceptual procedures, sampling in compression under the conditions of reconstruction precision)

Fixed-Point iteration(Function fixed_point(p0, N) approximates the solution of an equation f(x) = 0, rewritten in the form x = g(x), which is a sub-function the user has to enter. the call to the function fixed_point(p0, N) returns the root of the equation f(x),i.e. the fixed-point of g(x), if the procedure is successful or a sequence of iterates in case something goes wrong. p0 is the initial approximation and N the maximum number of iterations. If, after N iterations, condition |x(k)- x(k-1)| < tol is not satisfied, all iterated values will be displayed, accompanied by a message asking the user to either change p0 in case of divergence or enter another g(x) that does not lead to complex numbers arithmetics. Reasons for the program to go wrong are the divergence of iterates and/or appearance of complex numbers for example with functions involving sqrt(x) when one of the iterates is negative. )

电力系统潮流计算的计算机算法—PQ分解法潮流计算(Power Flow Calculation of the computer algorithm-PQ decomposition of power flow calculation)

结构动力分析用matlab计算平面桁架的特征值(Structural dynamic analysis using matlab calculating eigenvalues ​ ​ of plane truss)

光伏电池理论模型及MPPT的matlab-simlink程序，boost等(Theoretical model of photovoltaic cells and MPPT matlab-simlink program, boost, etc.)

matlab基础学习资料实例，包括符号运算，绘图以及基础编程，也包含线性代数实验及matlab在在线性代数中的应用(Examples matlab-based learning materials, including symbolic computation, graphics and basic programming, linear algebra also contains experimental and matlab applications of linear algebra)