一种改进的掩膜割线相位解缠算法  

AN IMPROVED MASK-CUT PHASE UNWRAPPING ALGORITHM

作　　者：钟何平[1] 唐劲松[1] 张森[1] 张学波[1] 

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《大地测量与地球动力学》2013年第5期101-105,共5页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(41304015;61072092;61101205)

摘　　要：为优化掩膜区域的相位解缠结果,提出一种改进的掩膜割线相位解缠算法。掩膜区域生成后,直接对非掩膜区域进行相位求解,然后对低质量相位区域采用"消圈"法来最小化掩膜区域相位的不连续性,达到消除传统掩膜割线算法中的解缠"死区",并保持相位连续性的目的。对InSAR和InSAS干涉图的解缠结果表明:该方法消除了传统掩膜割线法中的解缠"死区",提高了解缠相位质量。In order to optimize the unwrapped result of those mask areas, an improved maskcut phase unwrapping algorithm is proposed. After the mask generation, those nonmask areas are unwrapped directly, then the ＂circle cancelling＂ method is performed during those mask areas to minimize the discontinuity, which can remove those ＂died area＂ and keep the unwrapped result continuous. The tests performed on InSAR and InSAS interferograms show that the improved algorithm removes the ＂died area＂ of the unwrapped result successfully and greatly enhances its quality.

关 键 词：INSAR InSAS 相位解缠 掩膜割线 消圈 

分 类 号：P207[天文地球—测绘科学与技术]