逆合成孔径雷达

首先给出了逆合成孔径雷达成像原理和对数据进行仿真的方法，然后分别对运动补偿的两个步骤（包络对齐和相位补偿）加以详细探讨。

Firstly we introduce the theory of ISAR imaging and the method of simulation , and we research the two steps ( range alignment and phase compensation ) of the motion compensation respectively in detail .

逆合成孔径雷达成像一般采用距离-多普勒（R-D）成像方法。

The general approach to ISAR imaging is Range-Doppler ( RD ) imaging approach .

方位维逆合成孔径雷达（ISAR）运动补偿成象中的预加处理

Preprocessing for ISAR motion compensation and imaging in the corss range

逆合成孔径雷达（ISAR）成像是微波成像技术中一个较新的课题。

ISAR imaging is a new research subject in microwave imaging area .

逆合成孔径雷达（ISAR）及其处理技术复合非织造布技术

ISAR and Its Processing Technique Processing Technique for Composite Nonwovens

本文分析了逆合成孔径雷达（ISAR）成像中距离校正的基本原理，提出了两种新的校正方法：峰值对准法和直接校正法。

In this paper the basic theory of range-alignment in ISAR imaging is analysed .

逆合成孔径雷达（ISAR）是指固定雷达对运动目标成像。

Inverse synthetic aperture radar ( ISAR ) imaging involves stationary radar viewing moving targets .

合成孔径雷达（SAR）和逆合成孔径雷达（ISAR）能够获得高分辨率微波遥感图像，是雷达成像的重要技术。

SAR and ISAR are the key radar imaging techniques , which has been used to obtain high resolution images .

距离对准是逆合成孔径雷达（ISAR）运动补偿的关键。

Range alignment is crucial in motion compensation of the inverse synthetic aperture radar ( ISAR ) .

本文提出和研究了以散射功率质心为基准的逆合成孔径雷达（ISAR）成象的运动补偿方法&参考质心法。

The motion compensation for ISAR imaging using scattering centroid ( called reference centroid method ) is proposed and studied .

从逆合成孔径雷达运动补偿的角度对ISAR成像的干扰机理进行了理论分析，并进行了基于ISAR回波真实数据的仿真实验。

Through motion compensation of Inverse Synthetic Aperture Radar ( ISAR ), the jamming mechanism of ISAR is analyzed and simulated .

一种基于自适应Chirplet分解的逆合成孔径雷达成像方法

ISAR Imaging Based on Chirplet Decomposition to Maneuvering Targets

逆合成孔径雷达（ISAR）重点论述用固定雷达对活动目标成像，例如对飞机成像或对船成像等。

Inverse Synthetic Aperture Radars ( ISAR ) is mainly to describe fixed radar imaging moving targets such as airplane and ship .

稀疏信号表示在与信号结构匹配方面具有很大的灵活性，可以用于逆合成孔径雷达（ISAR）成像。

As sparse signal representation has greater flexibility in matching structure in the signal , it can be used in ISAR imaging .

线性调频法是逆合成孔径雷达（ISAR）成像中一种常用的方法，在该方法中扫频非线性对成像质量有一定的影响。

LFM is one of widely used methods of ISAR . Nonlinearity in frequency sweep has some effects on the quality of imaging .

为了提高逆合成孔径雷达（ISAR）成像处理速度，提出一种基于滤波方法进行包络对齐的改进算法。

To increase the imaging speed of inverse synthetic aperture radars ( ISAR ), an improved range alignment algorithm based on the filtering method is proposed .

逆合成孔径雷达（ISAR）转台成像中散射点越距离单元徙动（MTRC）时有发生。

Migration though resolution cell ( MTRC ) of scatters often occurs in inverse synthetic aperture radar ( ISAR ) imaging .

针对逆合成孔径雷达（ISAR）成像，该文提出一种快速运动补偿算法，该算法基于二维图像熵，并通过相位补偿的快速迭代，使图像熵逐渐达到最小，从而实现雷达像的自聚焦。

A novel fast phase compensation approach based on two-dimensional minimal image entropy is presented in this paper for Inverse Synthetic Aperture Radar ( ISAR ) imaging .

逆合成孔径雷达（ISAR）作为一种新体制雷达系统，具有很高的距离向和方位向分辨率，能够对运动目标成像。

As a new radar system , the inverse synthetic aperture radar ( ISAR ) can get the moving-targets images , which has high range and azimuth resolution .

逆合成孔径雷达（ISAR）图像的自动理解是应用其进行自动目标识别（ATR）的基础。

The basic and major difficulty in Automatic Target Recognition ( ATR ) based on the Inverse Synthetic Aperture Radar ( ISAR ) image is to automatically understand the ISAR images .

针对逆合成孔径雷达（ISAR）对机动目标成像的问题，提出了一种新的机动目标ISAR成像算法。

To investigate the inverse synthetic aperture radar ( ISAR ) imaging of maneuvering targets , a novel ISAR imaging algorithm using the modified discrete chirp-Fourier transform ( MDCFT ) is proposed .

针对逆合成孔径雷达（ISAR）的小转角目标回波特点，提出通过快速生成包络和相位的方法来构成目标回波。

To consider the echoes'characteristic of the moving target with small angle for inverse synthetic radar ( ISAR ), the target 's echoes are simulated by generating the envelope and phase quickly .

逆合成孔径雷达（ISAR）是最典型的对空成像技术，但大多数情况下由于空中目标的运动轨迹和运动参数都是未知的，目标运动的非合作性会造成ISAR成像性能的下降。

Inverse synthetic aperture radar ( ISAR ) is the typical imaging technique to flying target . But the unexpectable target motion trail and parameters will lower down the ISAR imaging quality .

根据小角度条件下的逆合成孔径雷达观测模型，利用稀疏成份分析方法给出了基于FFT的二维联合超分辨算法和二维解耦超分辨成像算法。

Based on the measurement model of inverse synthetic aperture radar within a small aspect sector , two imaging methods , named as FFT-based united algorithm and two-dimensional decoupled algorithm , are presented with the application of sparse component analysis .

目前逆合成孔径雷达（ISAR）在军事上的作用越来越突出，是目标分类、辨识和战场上敌我识别以及精确制导强有力的手段，在未来防空和导弹防御系统中具有十分重要的作用。

At present , Inverse Synthetic Aperture Radar ( ISAR ) imaging capability plays an important role in military applications , such as target classification , recognition , identification , and accurate weapon navigation .

通过对空天目标的逆合成孔径雷达（ISAR）成像，能够获得其运动态势和各种结构特征，为目标分类、识别和编目提供有力的技术支撑。

Inverse synthetic aperture radar ( ISAR ) imaging is able to provide motion parameters and structural features of aerospace targets , thus makes great contributions to target classification , recognition , and cataloging .

为改善基于时频分析的逆合成孔径雷达（ISAR）瞬时成像算法的性能，提出了一种基于时频分析的ISAR积累成像算法。

In order to improve the performance of the ISAR instantaneous imaging algorithm based on the time-frequency analysis , an adaptive accumulation imaging algorithm , also based on the time-frequency analysis , was proposed .

在方位维逆合成孔径雷达（ISAR）运动补偿成象中，为了获得方位维的高分辨力，需要处理的数据量很大。

In order to obtain a high cross range resolution , a great number of data need to be processed for inverse synthetic aperture radar ( ISAR ) motion compensation and imaging in the crossrange .

阴影逆合成孔径雷达（SISAR）属双多基地前向散射栅栏雷达体制。

Shadow inverse synthetic aperture radar ( SISAR ) is a bi-static forward scattering barrier radar .

本文讨论了逆合成孔径雷达（ISAR）中的成象和运动补偿技术，介绍了笔者在逆合成孔径雷达方面所做的工作，并给出了一些ISAR成象的实验结果。

This paper discusses the imaging and motion compensation technique in inverse synthetic aperture radar ( ISAR ), introduces the research work done by the author in ISAR and presents some experimental results of ISAR imaging .