欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
逆合成孔径雷达成像是宽带雷达实现目标信息获取和精细描述的重要途径,但在成像过程中存在复杂运动导致散焦和成像分辨率不高两个难题.针对目标复杂运动导致成像散焦问题,本文总结了微动对雷达波调制、进动目标成像、三维运动成像、分离部件成像等技术现状;针对成像分辨率不高问题,分析了多频段宽带回波相参配准、融合成像等技术进展.本文介绍了雷达成像新技术,为解决上述两个难题带来新的思路和途径,其中,雷达关联成像不依赖于雷达与目标的相对运动,可避免成像的复杂运动补偿;太赫兹雷达成像容易实现大带宽和窄波束,获得目标精细雷达像.最后对新兴技术的难点和发展趋势进行了展望.
英文摘要：
Inverse synthetic aperture radar （ISAR） is an important approach to derive detailed information of wideband radar target,where defocusing caused by complex motion and low resolution are two key difficulties.This paper gives a survey of radar imaging of complex motion target,including modulation effect of micro-motion,procession target imaging,three-dimensional motion target imaging and separate motion parts imaging.Aiming at improving image resolution,coherent compensation among sub-bands and fusion imaging are also demonstrated.Then new approaches of radar imaging are presented,wherein radar coincidence imaging is irrelevant to the relative motion between radar and target,thus avoid compensating complex motions.In THz imaging it is easy to implement large bandwidth and narrow wave beam; thereby the formulated high resolution images are with more details which are beneficial to target recognition.Finally,difficulties and directions for these two newly developing techniques are pointed out.
同期刊论文项目
同项目期刊论文
Performance bounds of direction finding and its applications for multiple-input multiple-output rada
Weighted average frequency algorithm for Hilbert-Huang spectrum and its application to micro-Doppler
High-speed Target ISAR Imaging via Compressed Sensing Based on Sparsity in Fractional Fourier Domain
Manifold studies on fundamental limits of direction-finding multiple-input multiple-output radar sys
Dynamic Compressed HRRP Generation for Random Stepped-Frequency Radar Based on Complex-Valued Fast S
ISAR imaging of multiple targets using particle swarm optimisation - adaptive joint time frequency a
Random finite sets-based joint manoeuvring target detection and tracking filter and its implementati
Effects of transmitting correlated waveforms for co-located multi-input multi-output radar with targ
Sparsity-aware space-time adaptive processing algorithms with L-1-norm regularisation for airborne r
Sparsity-based space-time adaptive processing using complex-valued Homotopy technique for airborne r
Effects on beam pattern performance for colocated multi-input multi-output radar transmitting correl
A Compact Methodology to Understand, Evaluate, and Predict the Performance of Automatic Target Recog
Power allocation for range-only localisation in distributed multiple-input multiple-output radar net
L-1-Regularized STAP Algorithms With a Generalized Sidelobe Canceler Architecture for Airborne Radar
Rotating parabolic-reflector antenna target in SAR data: Model, characteristics, and parameter estim
Wideband electromagnetic characteristics modeling and analysis of missile targets in ballistic midco
Target classification of ISAR images based on feature space optimisation of local non-negative matri
Pulse-repetition-interval transform-based vibrating target detection and estimation in synthetic ape
期刊信息
位置：