1673-5439(2010)04-0057-04

SAR的点目标仿真，matlab开发，程序思路清晰，通俗易懂(SAR point target simulation, matlab development, program ideas clear, easy to understand)

Sliding Sum Averaging Filter Smoothes data by sliding it past itself, one sample at a time, and summing. The length of the output is the same as the length of the input. The output will be normalized. Equivalent to a moving average (lowpass) filter, but more efficient.

用窗函数法设计线性相位FIR低通滤波器。要求通带截止频率ωc=π/4，单位脉冲响应h(n)的长度N=23。绘出h(n)及其幅频响应特性曲线(Window function with linear phase FIR design a low pass filter. Required pass-band cutoff frequency ωc = π/4, unit impulse response h (n) of length N = 23. Plot h (n) and frequency response curves)

摄影测量中的前交后交方法计算出实地三维坐标(Photogrammetry and submit it before the delivery method to calculate three-dimensional coordinates of the field)

运用打靶法求解二阶边值问题。BVP2: [x1,x2]’ = f(t,x1,x2) with x1(t0) = x0, x1(tf) = xf(solve BVP2 by the shooting method)

利用MATLAB模拟六边形结构光子晶体光纤的三维结构(MATLAB simulation of the use of hexagonal photonic crystal fiber structure of the three-dimensional structure)

说明：  wind turbine DFIG control

用matlab实现了数字信号处理中的多采样转换，并依此原理进行采样转换滤波器的设计。(matlab)

hilbert 的VB6.0的代码，利用matlab验证过了，可以用于包络解调分析(hilbert the VB6.0 code, the use of matlab verified, and can be used for envelope demodulation)

通过matlab编程，采用纤维法实现简单矩形截面的弯矩-曲率关系分析，附件为分析源代码。(By matlab programming, using a simple method to achieve a rectangular cross section fiber moment- curvature relationship analysis, attachment to analyze the source code.)