地面运动

本文研究涉及SH波和Love波的强地面运动的扭转加速度是如何引起对称结构的扭转反应的。

The present study shows how the torsional response of symmetric structures arises from the torsional accelerations of strong ground motion associated with SH and Love-waves .

粘弹性垂直向渐变水平复盖层对P-SV波引起的地面运动的影响

Effect of Horizontal Viscoelastic Covering Layers with Vertically Gradually-Varying Properties on the Ground Motion Caused by P-SV Waves

一种改进的三通道SAR地面运动目标指示方法

An Improved Method of Three-channel SAR Ground Moving Target Indication

同步轨道星机双基地三通道SAR地面运动目标指示算法

An Algorithm of GEO Spaceborne-Airborne Bistatic Three-Channel SAR Ground Moving Target Indication

一种在双通道SAR图像域实现地面运动目标检测的方法

A New Ground Moving Targets Detector in Dual-Channel SAR Images

分布式小卫星SAR系统地面运动目标检测方法

Ground Moving Target Indication for Distributed Small Satellite SAR Systems

机载SAR的地面运动目标成像处理

Imaging of ground moving targets based on airborne SAR

机载双通道SAR地面运动目标检测成像技术研究

The Study of Ground Moving Target Detection and Imaging for Airborne Dual-Channel SAR

基于机载单通道SAR数据的地面运动目标检测算法

SAR-GMTI Algorithm Based on Single-channel Airborne SAR Data

地面运动强度指标对RC桥墩地震需求的影响

Influence of the selection of strong-motions intensity measures on the seismic demands for RC bridge columns

本文首先对大量的真实目标数据进行了研究，分析了利用DSP技术实现地面运动目标识别的必要性和可行性。

The thesis , based on much data of seismic target analyses the necessary and feasibility of target identification using DSP technology .

基于Keystone变换的地面运动目标检测研究

Ground Moving Target Detection With an SAR System Based on Keystone Transform

顺轨双天线机载InSAR的地面运动目标检测研究

Ground Moving Target Indication Based on Along Track Airborne InSAR with Two Antennas

地下洞室群对地面运动影响问题的级数解答：SH波入射

A series solution for surface motion amplification due to underground group cavities : incident SH waves

基于机载合成孔径雷达（SAR）的地面运动目标检测与成像技术已经成为现代雷达技术发展的一个重点。

The detection and imaging of moving targets based on airborne synthetic aperture radar ( SAR ) is a crucial technique for the modern radar .

探讨了单天线单通道近程合成孔径雷达（SAR）中的地面运动目标检测问题。

The present method in China for detecting ground moving target with single antenna single channel short range SAR ( Synthetic Aperture Radar ) is just beginning .

小卫星分布式合成孔径雷达（SAR）系统可以提高成像分辨率，检测地面运动目标和进行数字高程测量。

The passive distributed microsatellites Synthetic Aperture Radar ( SAR ) system has the capabilities in improving image resolution , detecting ground moving targets and computing digital elevation models .

论文的主要贡献有：1.利用高分辨率机载SAR数据，开展了地面运动目标的高分辨率成像研究。

The primary works of the dissertation introduced as follow : 1 . Based on high resolution airborne SAR , the high resolution ground moving targets imaging are studied .

同时地形高程测量和地面运动目标检测的分布式InSAR最优编队构形分布式小卫星干涉高程测量

The optimal formation configurations for both GMTI and DEM using distributed satellites InSAR Interferometric measurement of terrain elevation with distributed micro-satellites

基于高分辨率顺轨双天线机载InSAR，研究了地面运动目标检测问题。

The Ground Moving Target Indication ( GMTI ) is investigated based on along track high resolution airborne InSAR with two antennas .

此外，场景中的运动目标会在SAR图像中散焦或移位，如何对地面运动目标进行检测和精确成像是SAR领域的研究热点。

In addition , the moving target in the scene may exhibit defocusing or shifting , so how to locate and image them accurately has become a hotspot in SAR research field .

在假定Q因子线性地依赖于频率的指数衰减项的情况下，使用该模型导出了直接与地面运动峰值速度参数估算地震应力降的测定关系。

Assuming that Q factor changes in a linear way with frequency , the relation which is able to estimate the stress drop through peak velocity of ground can be derived as .

地面运动最大幅值、到时的差动特性希尔伯特&黄变换（HHT）与地震动时程的希尔伯特谱

DIFFERENTIAL CHARACTERISTICS OF MAXIMUM AMPLITUDE AND ARRIVAL TIME FOR EARTHQUAKE GROUND MOTION Hilbert-Huang Transform and Hilbert Spectrum of Earthquake Ground Motion

地面运动目标检测（GMTI）技术是合成孔径雷达领域中的一个研究热点，基于SAR平台的运动目标检测无论是在军事上还是在民用上都有广泛的应用前景。

Ground moving target indication ( GMTI ) is a hot topic in the area of SAR and plays an important role in both military and civilian field .

地壳由半无限大的基岩上一层厚度为H的表土层组成，入射地震波为垂直的SH波，产生水平地面运动。

The crust is constituted by the rock and a surface layer of soil with depth H over it . The incident seismic wave is a vertical SH shear wave to cause horizontal ground motion .

首先研究了SDOF系统参数和地面运动参数对弹性地震输入能量谱的影响。

The influence parameters , including the parameters of the SDOF systems and the ground motions , on the input energy spectrum are investigated .

通过分析相位中心偏置天线（DPCA）技术和干涉处理的优点和缺点，该文提出了一种用三孔径合成孔径雷达（SAR）对地面运动目标进行检测的新方法。

This paper puts forward a new method of detecting three-aperture Synthetic Aperture Radar ( SAR ) ground moving targets after studying Displaced Phase Center Antenna ( DPCA ) and interferometric processing technique .

研究结果表明，谷地一般放大了入射的地面运动，同时，位移的放大和复杂性决定于入射Rayleigh波的频率以及谷地的形状。

The results show that in general the valley amplifies the incident ground motion and that the amplification and the complexity of the displacement pattern depend on the frequency of the incident Rayleigh waves and on the shape of the valley .

天基稀疏孔径实现地面运动目标指示（GMTI）具有很大吸引力，然而天基稀疏阵通常存在距离、多普勒和角度模糊。

Using space based sparse array for ground moving target indication is attractive . Unfortunately , range , Doppler and angle ambiguities usually occur with space based sparse array .

计算获得了华北地区最大地面运动和设计地面加速度（DGA）的分布图。

The method proposed by Panza ( 1999 ) was used in the calculation to obtain the distribution map of the maximum ground motion and design ground acceleration ( DGA ) .