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哈工大刘永坦老师关于雷达成像原理的电子书(HIT Liu Tan teacher books on radar imaging principle)

二维信号卷积，若x为N1*M1的二维信号，y为N2*M2的二维信号，则卷积为(N1+N2-1)*(M1+M2-1)的信号(Two demension signal convolution. )

任意长度的伪码序列发生器，并包含测试程序。(Any length pseudo-code sequence generator, and includes test procedures.)

设r是f(x) = 0的根，选取x0作为r初始近似值，过点（x0,f(x0)）做曲线y = f(x)的切线L，L的方程为y = f(x0)+f (x0)(x-x0)，求出L与x轴交点的横坐标 x1 = x0-f(x0)/f (x0)，称x1为r的一次近似值。过点（x1,f(x1)）做曲线y = f(x)的切线，并求该切线与x轴交点的横坐标 x2 = x1-f(x1)/f (x1)，称x2为r的二次近似值。重复以上过程，得r的近似值序列，其中x(n+1)=x(n)－f(x(n))/f (x(n))，称为r的n+1次近似值(Let r is f (x) = 0 root, select the initial approximation x0 as the r, over point (x0, f (x0)) to do the curve y = f (x) the tangent L, L the equation y = f ( x0)+ f ' (x0) (x-x0), find the intersection of L and the x-axis of abscissa x1 = x0-f (x0)/f' (x0), x1 is called an approximation r. Through points (x1, f (x1)) to do the curve y = f (x) the tangent, and find the intersection of the tangent with the x-axis of abscissa x2 = x1-f (x1)/f ' (x1), x2 is called r the second approximation. Repeat the process, get an approximation of the sequence r, where x (n+1) = x (n)-f (x (n))/f ' (x (n)), as an approximation of r n+1 times)

本资源是关于在捷联惯导技术中标定技术的参考文献(a list of dissertion about the technology of alignment in SINS)

matlab的仿真追击程序模拟，欢迎数学建模的朋友下载。(matlab simulation program to simulate pursuit, welcome friends from mathematical modeling to download.)

说明：  无线传感器网络中经典定位算法：dv-hop算法的实现(Wireless sensor network localization algorithm in the classic: dv-hop algorithm implementation)

说明：  SLM算法的ccdf表示，用来降低OFDM系统中papr值。(SLM ccdf algorithm, used to reduce the OFDM system papr value.)

用4种方法绘出螺旋曲线上升的动态效果 x=cos(t) y=sin(t) z=t(Plotted using four methods increased the dynamic effect of the spiral curve x = cos (t) y = sin (t) z = t)

lvq财务预测MATLAB程序。通过财务数据预测财务风险(lvq finacial forecast)