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yantuo
地震勘探反演方法
正演延拓
假设炮点在地层最底层,向上延拓(Forward seismic inversion method assuming continuation shot in the bottom of the formation, upward continuation)
- 2021-03-31 15:09:09下载
- 积分:1
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SARReturnWaveSignal
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.)
- 2009-07-07 22:42:14下载
- 积分:1
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MATLAB-Simulink
系统介绍电力系统可靠性的相关知识。获多个国家基金支持。(System describes the knowledge of power system reliability. A number of countries eligible for funding support.)
- 2015-10-11 14:01:59下载
- 积分:1
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model_build
对具有进动形式的空间目标进行微多普勒提取(Micro Doppler extraction of space target)
- 2021-04-21 10:28:49下载
- 积分:1
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DAY_SUM_CTL
数据汇总 ,对数据量比较大的数据进行汇总,分析 ,比对(Data collection, data larger than the data aggregation, analysis, comparison)
- 2009-03-05 02:09:27下载
- 积分:1
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seis88
说明: 地震数据反演处理软件,程序ANRAY95是汉堡大学地球物理研究所Gajewski和Psencik等编写的ANRAY86和ANRAY89的修改版本,适用于用射线的方法数值模拟三维各向同性或各向异性介质中地震波场传播问题。
(Inversion of seismic data processing software, the program is ANRAY95 Institute of Geophysics, University of Hamburg Gajewski and Psencik prepared ANRAY86 and ANRAY89 such as a modified version of the method applied to numerical simulation using ray three-dimensional isotropic or anisotropic media in the dissemination of seismic wave field问题.)
- 2010-03-25 13:00:08下载
- 积分:1
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thesis
2009nuaa南京航空航天大学毕业论文。《DTC直接转矩控制的实现》.内含simulink模型。可在matlab7.0以上直接运行。PS: 此模型为建立在数学模型基础之上,未使用power sysytem toolbox。(因toolbox版本不同会产生不兼容现象)(Thesis of Nanjing University of Aeronautics and Astronautics 2009 nuaa. “DTC direct torque control to achieve.” Simulink model.It can be run directly in matlab 7.0 or higher. PS: This model is built on the basis of mathematical models, not using power sysytem toolbox. (Toolbox versions will produce a result not compatible with the phenomenon))
- 2011-02-08 06:34:28下载
- 积分:1
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NDVI
利用IDL读取MODIS影像L1B和MOD03数据(HDF格式),计算遥感植被指数NDVI(MODIS images using IDL to read L1B and MOD03 data (HDF format), the calculation of remote sensing vegetation index NDVI)
- 2021-04-02 21:39:07下载
- 积分:1
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基于物联网技术打造智慧档案馆室
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.)
- 2018-09-16 17:56:13下载
- 积分:1
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yantuo
地震勘探反演方法
正演延拓
假设炮点在地层最底层,向上延拓(Forward seismic inversion method assuming continuation shot in the bottom of the formation, upward continuation)
- 2021-03-31 15:09:09下载
- 积分:1