以交叉累积剩余熵为准则的星载激光测高仪大光斑波形数据与地形匹配法

doi:10.11947/j.AGCS.2017.20160255

测绘学报 ›› 2017, Vol. 46 ›› Issue (3): 346-352.doi: 10.11947/j.AGCS.2017.20160255

以交叉累积剩余熵为准则的星载激光测高仪大光斑波形数据与地形匹配法

岳春宇, 邢坤, 鲍云飞, 周楠, 何红艳

北京空间机电研究所, 北京 100094

收稿日期:2016-05-25 修回日期:2017-01-09 出版日期:2017-03-20 发布日期:2017-04-11
作者简介:岳春宇(1983-),男,博士,高级工程师,研究方向为卫星摄影测量、遥感图像处理与应用等。E-mail:ycy1893@163.com
基金资助:
国家自然基金（41401411；41401410）；高分对地观测专项基金（GFZX040136）；国家重点研发计划地球观测与导航重点专项基金（2016YFB0500802）

A Matching Method of Space-borne Laser Altimeter Big Footprint Waveform and Terrain Based on Cross Cumulative Residual Entropy

YUE Chunyu, XING Kun, BAO Yunfei, ZHOU Nan, HE Hongyan

Beijing Institute of Space Mechanics & Electricity, Beijing 100094, China

Received:2016-05-25 Revised:2017-01-09 Online:2017-03-20 Published:2017-04-11
Supported by:
The National Natural Science Foundation of China (Nos. 41401411;41401410);The High Resolution Earth Observation Special Fund (No. GFZX040136);The National Key Technology Research and Development Program of the Earth Observation and navigation Special Fund of China (No. 2016YFB0500802)

摘要/Abstract

摘要： 提出了一种基于交叉累积剩余熵的星载激光测高仪大光斑波形数据与地形匹配方法。根据星载激光测高仪大光斑回波波形信号包含地形结构信息的特性，将激光回波波形数据和数字表面模型（DSM）投影到统计特征空间，建立数据的统计特征向量，消除数据间维度差异，以交叉累积剩余熵为相似性测度匹配波形数据与地形的统计特征。试验结果表明，本方法能够较好地实现激光回波波形数据与地形的匹配，匹配精度达到一个像素以内。

关键词: 星载激光测高仪, 大光斑回波信号, 地形匹配, 统计特征, 交叉累积剩余熵

Abstract: A matching method of space-borne laser altimeter big footprint waveform and terrain based on cross cumulative residual entropy(CCRE) is proposed. Firstly, the waveform data and digital surface model(DSM) data are projected to the statistics domain, according to the terrain structure information of the waveform, where statistics signal vectors of the two data are in the same dimension. Then, the waveform data and DSM image are matched in the statistics domain with CCRE. Experiments show that the algorithm proposed is effective in waveform and terrain matching, and the matching accuracy is within 1 pixel.

Key words: space-borne laser altimeter, big footprint waveform, terrain matching, statistics, cross cumulative residual entropy(CCRE)

中图分类号:

P223

岳春宇, 邢坤, 鲍云飞, 周楠, 何红艳. 以交叉累积剩余熵为准则的星载激光测高仪大光斑波形数据与地形匹配法[J]. 测绘学报, 2017, 46(3): 346-352.

YUE Chunyu, XING Kun, BAO Yunfei, ZHOU Nan, HE Hongyan. A Matching Method of Space-borne Laser Altimeter Big Footprint Waveform and Terrain Based on Cross Cumulative Residual Entropy[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(3): 346-352.

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以交叉累积剩余熵为准则的星载激光测高仪大光斑波形数据与地形匹配法

A Matching Method of Space-borne Laser Altimeter Big Footprint Waveform and Terrain Based on Cross Cumulative Residual Entropy

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