luheng

基于FFT的快速SAR分布目标回波模拟算法. 大面积分布目标的合成孔径雷达(SAR)回波模拟需要大量的运算，文中提出了一种合成孔径雷达回波模拟的快速算法，算法利用时域插值和FFTl’来缩减运算量，对于大面积目标回波模拟时，该算法有很高的效率。文中详细分析sinc函数插值所带来的误差以及补偿方法，并在次基础上提出了一种利用增采样插值方法，该方法以增加少量运算为代价，使得模拟精度的大幅度提高。文中比较了传统方法和基于FFTl’的快速SAR分布目标回波模拟算法的模拟结果，证明了这种快速算法确实行之有效。(The simulation of distributed targets is very important to the design of synthetic aperture radar(SAR)sys- tems．Since the end product is SAR images，the echo of SAR signals needs to be simulated and then processed form SAR images，an d the parameters needs to be measured and the perform ance of the images should be，an d then evaluated．The designing parameters of SAR could be adjusted to meet the requirement of users before developing SAR systems，specially in space—bome SAR systems．Th e simulation data is also needed during the developing an d debugging of a space—borne SAR real—time processor．Another purpose of simulation is to supply a great deal of simulation imag es to train image usors of space—bo rne SAR before it launch．)

本程序为电力系统潮流计算PQ法，计算结果正确，画出图形不正确。需自行改正(This procedure for the PQ power system power flow calculation method, calculation is correct, draw graphics incorrect. To be self-corrected)

信息化是将来管理系统改进的主要方向 虽然电子化档案是重要的发展方向，但是实物档案也是重要的资产，特别是涉及保密内容时，两者同样重要 采用自动识别手段，提高操作效率是发展方向 实现档案在位监管，提高资产保全率是重要方向 减少实物档案的遗失等问题发生 从而避免财产损失，杜绝涉密事件的发生(Informatization is the main direction of the improvement of management system in the future. Although electronic archives are an important development direction, physical archives are also important assets, especially when it comes to confidentiality. Using automatic identification method to improve operational efficiency is the direction of development. It is an important direction to realize the supervision of archives in place and improve the asset preservation rate. Reduce the loss of physical files and other problems. So as to avoid property losses and eliminate secret incidents.)

说明：  组态软件带注册码，有谁要，免费拿去。。。。。。。。。。。。。。(Configuration software with registration code, who wants to take it for free...)

说明：  台湾国立中央大学的HHT变换程序，试过了很好用的！欢迎下载(Taiwan National Central University of HHT transform procedure, tried a very good use! Welcome to download)

道格拉斯-普克算法 (Douglas– Peucker algorithm，亦称为拉默-道格拉斯-普克算法、迭代适应点算法、分裂与合并算法)是将曲线近似表示为一系列点，并减少点的数量的一种算法。它的优点是具有平移和旋转不变性，给定曲线与阈值后，抽样结果一定。(The Douglas - puke algorithm (Douglas - Peucker algorithm, also called the lamer - Douglas - puke algorithm, iterative adaptive point algorithm, split and merge algorithm) is an algorithm that approximatively represents a curve as a series of points and reduces the number of points. It has the advantages of translation and rotation invariance. After a given curve and threshold, the sampling result is certain.)

一个access vba的源码，功能为根据读取xml，csv来实现数据分析，并保存到access db，生成报表，支持预览及打印功能，是用日语做的，说明书以及操作用的xml，csv也包含其中。(An access vba source code, function according to read xml, csv to data analysis, and save it to access db, generate reports, preview and printing support is done in Japanese, manuals, and operating with the xml, csv also included.)

时间域信号转化为频率域，显示其频谱。matlab语言(Time domain signal into a frequency domain, indicating its spectrum. matlab language)

弹性波方程的地震波场的正演模拟，采用的是高阶精度--10阶，但是还没加边界(Elastic wave equation of seismic wave field forward modeling, using the high-order accuracy- 10 bands, but not Canadian border)

《测量平差程序设计》（宋力杰编著）一书的源码(" Surveying Adjustment Program Design" (Song Lijie eds) source)