| SAR����ͼ�˲�����λ����㷨�Ƚ��о� |
| |
| 引用本文： | 李陶,张诗玉,周春霞.SAR����ͼ�˲�����λ����㷨�Ƚ��о�[J].大地测量与地球动力学,2007,27(1):59-64. |
| |
| 作者姓名： | 李陶 张诗玉 周春霞 |
| |
| 作者单位： | 1. 武汉大学卫星导航定位技术研究中心,武汉,430079
2. 武汉大学测绘学院中国南极测绘研究中心,武汉,430079 |
| |
| 基金项目： | 国家自然科学基金(40474002,40604002)，武汉大学地球空间环境与大地测量教育部重点实验室基金(905152533-05-08) |
| |
| 摘 要： | ??L P ????????￡?????????λ???????????????????о?????????????3???????????????????????Bam?????????SAR??????????????????????????:Goldstein?????????Ч???????е??????????,??????????????Ч??????????????????????L 1?????????????????????????????Ч?????L 2?????????????????????????Ч?????L 0????????????????????????????????????????????????????????
|
| 关 键 词： | ????????? ??? ??λ??? L P???? ??з? |
| 文章编号： | 1671-5942(2007)01-0059-06 |
| 修稿时间： | 2006年8月13日 |
COMPARISON AMONG METHODS OF FILTERING AND PHASE UNWRAPPING FOR SAR INTERFEROGRAM |
| |
| Li Tao,Zhang Shiyu,Zhou Chunxia.COMPARISON AMONG METHODS OF FILTERING AND PHASE UNWRAPPING FOR SAR INTERFEROGRAM[J].Journal of Geodesy and Geodynamics,2007,27(1):59-64. |
| |
| Authors: | Li Tao Zhang Shiyu Zhou Chunxia |
| |
| Institution: | 1)GNSS Engineering Research Center, Wuhan University, Wuhan 4300792)Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079 |
| |
| Abstract: | On the basis of the framework of LP-norm, the mathematic model of classic phase unwrapping methods is studied. Phase unwrapping methods are classed into three types. The topographic SAR interferogram in Bam region of Iran is analyzed with these phase unwrapping methods.The results show that the Goldstein filtering method can improve effectively the distribution of residuals and branch cuts and raise the visual effects of the interferogram as well as the ratio of signal to noise. The L1-norm methods based on network currents can achieve an optimal resolving, but the efficiency is rather low, the L2-norm method can obtain better optimal resoloring and has better efficiency, L0-norm algorithm performed best in efficiency, but with discontinuity and uncertainty. |
| |
| Keywords: | SAR filtering phase unwrapping LP-norm branch cut method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《大地测量与地球动力学》浏览原始摘要信息 |
| 点击此处可从《大地测量与地球动力学》下载免费的PDF全文 |
