学术
摘 要:
岸-舰双基地综合脉冲孔径雷达（SIAR）由于收发分置且接收站在运动平台上而不能采用物理链路进行同步。该文提出了在接收站利用直达波对每路发射信号的初始相位进行校准，从而综合得到发射方向图。分析了信号的截断、离散化、DFT对频率的离散化、接收平台运动、多径效应、GPS定位误差等对初相校准的影响以及补偿方法。通过计算机仿真数据以及外场实测数据的分析与处理，证明了这种方法的可行性。[著者文摘]
关 键 词:
文章出处:
《电子与信息学报》-2008年30卷2期 -302-305页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1009-5896（2008）02-0302-04
Phase Calibration and Error Analysis for Coast-Ship Bistatic Synthetic Impulse and Aperture Radar
Chen Duo-fang Chen Bai-xiao Liu Chun-bo Zhang Shou-hong （National Key Lab for Radar Signal Processing, Xidian University, Xi＇an 710071, China）
Abstract:
The synchronization by using physical link for coast-ship bistatic SIAR is impractical due to the fact that the receiver is installed on a moving ship. The direct-path wave is used to calibrate the phase and complete the transmit beamforming. The factors that have effects on the accuracy of phase calibration include truncation, discretization, DFT, the motion of the receiver, multi-path and so on. The effects are analyzed and the corresponding compensation is given. The method introduced has been proved feasible by the processing of both the computer simulation and the real data.[著者文摘]
Key words:
Bistatic SIAR; Direct wave; Phase calibration; Technique of synthetic impulse and aperture
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