一种INSAS的干涉相位初值的估计方法  

A method of estimating initial phase of InSAS

作　　者：陈鸣[1] 唐劲松[1] 

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《海军工程大学学报》2010年第5期10-15,20,共7页Journal of Naval University of Engineering

基　　金：国家863计划资助项目(2007AA091101);海军工程大学自然科学基金资助项目(HGDJJ07018)

摘　　要：分析了干涉合成孔径声纳(InSAS)处理中初始相位误差对数字高程图的影响。提出了采用多点的配准时延信息估计干涉相位初值的方法,该方法可提高干涉相位初值估计的精度和可靠性。对几种配准时延信息计算方法估计的干涉相位初值进行了比较和分析。干涉仪合成孔径声纳湖试样机试验数据处理结果,验证了该方法的有效性。The influence of the estimated error of initial phase of InSAS was analyzed.A method was proposed for estimating the initial phase by using the multiple point time-delay information,which was measured in image registration.This method increases the accuracy and reliability of estimation. The distributions of the initial phase that were estimated by different algorithms of image registration were compared.The processing result obtained by using this method of the lake-trial data shows that the proposed method is effective.

关 键 词：信号处理 干涉相位初值 相位解卷 数字高程模型 

分 类 号：TB56[交通运输工程—水声工程]