数据采集与处理2011,Vol.26Issue(3):347-355,9.
间接同步连续采样模式双基地ISAR时间同步仿真
Modeling and Simulation on Time Synchronization of Indirect Synchronization Continuous Sampling Mode Bistatic ISAR
摘要
Abstract
The time synchronization problems of bistatic ISAR using indirect time synchronization continuous sampling mode is studied.Firstly, the characteristics of the time system inbistatic ISAR are analyzed.Then, the time model of bistatic ISAR using indirect time synchronization continuous sampling mode is established.The model depicts the time system of bistatic ISAR using fast time, slow time and time synchronization error respectively.Based on the time model, the effect of continuous sampling on bistatic ISAR imaging is discussed.The influences of the non-ideal clock to the echo phase and to the ISAR imaging is also analyzed.Finally, the simulations of bistatic ISAR imaging with different time synchronization mode are carried out.The simulations indicate that the indirect synchronization continuous sampling mode has little adverse effect on ISAR imaging, and is highly tolerant to the non-ideal clock.It is proved that such synchronization mode can solve the time synchronization problem of bistatic ISAR effectively.关键词
逆合成孔径雷达/双基地/时间同步/连续采样/间接同步Key words
ISAR/ bistate/ time synchronization/ continuous sampling/ indirect synchronization分类
信息技术与安全科学引用本文复制引用
董健,尚朝轩,高梅国,傅雄军..间接同步连续采样模式双基地ISAR时间同步仿真[J].数据采集与处理,2011,26(3):347-355,9.基金项目
国家高技术研究发展计划("八六三"计划)(2008AA0194)资助项目. ("八六三"计划)