Range alignment is one of the key technologies of ISAR imaging.
距离对齐是ISAR成像的关键技术之一。
In this article, we have a deep study on the airborne ISAR imaging of ship targets.
本文对机载ISAR舰船成像作了较深入的研究。
The conventional ISAR imaging method is based on the instantaneous Doppler of scatterers .
常规的ISAR成像方法是利用散射点的多普勒频率来成像。
We set off our discussion and research work to the problem in ISAR imaging in complicated environments.
本文对在复杂环境中遇到的ISAR成像问题展开研究和讨论。
Polar reformation, modern spectrum analysis and time-frequency imaging which are used for ISAR imaging are discussed also.
简单讨论了ISAR的极坐标重组、现代谱分析和时频成像法。
The targets imaged by ISAR are usually non-cooperative. So motion compensation is a key technique in ISAR imaging processing.
ISAR一般是对非合作目标成像,运动补偿是整个成像信号处理中的一个关键。
Distortion compensation of high resolution range (HRR) profiles plays an important role in ISAR imaging of space target with high speed.
高分辨距离像的畸变补偿是空间目标ISAR成像过程中的重要环节。
Motion compensation is one of the key problems in ISAR imaging. Usually, the compensation process is based on an isolated point on target.
运动补偿是ISAR成像的关键问题之一,通常都是利用目标的一个孤立点作基准进行补偿。
In chapter I, the background of the article is introduced. The theory and method of space target recognition and space ISAR imaging is introduced too.
第一章介绍了本文的研究背景,系统地介绍了空间目标识别以及空间目标ISAR成像的理论与方法。
The middle-field ISAR imaging by mending curved phase front is as same as the far-field imaging, but can reduce the requirement of measurement distance greatly, with great engineering meanings.
在中场区通过对相位弯曲补偿进行微波成像与远场成像效果相当,且能大大降低对测试距离的要求,所以具有很强的工程应用价值。
In chapter IV, the characteristic of spin target's one-dimension range-profile and the influence which bring to ISAR imaging is reached. Then corresponding compensation method is brought forward.
第四章研究了自旋运动目标一维距离像的特点以及对ISAR成像的影响,提出了相应的补偿方法。
This new algorithm can be available for the ISAR imaging of both the maneuverable and stationary targets, and the imaging definition is superior to the traditional range-Doppler imaging algorithm.
该算法可适用于机动目标和平稳目标的ISAR成像,其成像清晰度优于传统距离-多普勒算法。
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.
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。
Migration though resolution cell(MTRC) of scatters often occurs in inverse synthetic aperture radar(ISAR) imaging.
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。
The imaging results based on the measured ISAR data demonstrate a good performance of the autofocus algorithm.
将该算法应用于实测数据的ISAR成像中,得到了较好的聚焦结果。
Motion compensation is a key step for inverse synthetic aperture radar (ISAR) imaging.
运动补偿是逆合成孔径雷达成像的关键。
Inverse synthetic aperture radar (ISAR) imaging of non-cooperative maneuvering multi-target is a challenging task due to its time-varying orientation and the relative motion among targets.
非合作的机动多目标相对于雷达射线的姿态是时变的,而且目标间可能存在相对运动,给逆合成孔径雷达(ISAR)成像造成较大困难。
Inverse Synthetic Aperture Radars (ISAR) is mainly to describe fixed radar imaging moving targets such as airplane and ship.
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。
This thesis, based on the ISAR, introduces the algorithms of microwave imaging.
本文以ISAR成像为基础,讨论了微波成像算法。
The methods of Fast ISAR ID imaging scaling and calculating the across speed of target are proposed.
提出横向一维像快速定标方法和切向速度计算方法。
The processing results of live data show that the proposed method can improve the imaging quality of ISAR significantly.
外场数据处理结果表明这种方法明显改善了成象质量。
The processing results of live data show that the proposed method can improve the imaging quality of ISAR significantly.
外场数据处理结果表明这种方法明显改善了成象质量。
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