高分七号卫星激光测高数据处理与精度初步验证

doi:10.11947/j.AGCS.2021.20210025

测绘学报 ›› 2021, Vol. 50 ›› Issue (10): 1338-1348.doi: 10.11947/j.AGCS.2021.20210025

高分七号卫星激光测高数据处理与精度初步验证

李国元^1,2,3, 唐新明^1,2,3, 陈继溢¹, 么嘉棋^1,2, 刘诏¹, 高小明^1,3, 左志强¹, 周晓青¹

1. 自然资源部国土卫星遥感应用中心, 北京 100048;
2. 山东科技大学测绘与空间信息学院, 山东青岛 266590;
3. 江苏省地理信息资源开发与利用协同创新中心, 江苏南京 210023

收稿日期:2021-01-14 修回日期:2021-03-24 发布日期:2021-11-09
通讯作者: 唐新明 E-mail:tangxinming99@qq.com
作者简介:李国元(1984-),男,博士,副研究员,主要研究方向为卫星激光测高数据处理与应用;E-mail:ligy_lasac@foxmail.com
基金资助:
国家自然科学基金（41971425）；高分遥感测绘应用示范系统（二期）（42-Y30B04-9001-19/21）

Processing and preliminary accuracy validation of the GF-7 satellite laser altimetry data

LI Guoyuan^1,2,3, TANG Xinming^1,2,3, CHEN Jiyi¹, YAO Jiaqi^1,2, LIU Zhao¹, GAO Xiaoming^1,3, ZUO Zhiqiang¹, ZHOU Xiaoqing¹

1. Land Satellite Remote Sensing Application Center, Ministry of Natural Resources, Beijing 100048, China;
2. College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China;
3. Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China

Received:2021-01-14 Revised:2021-03-24 Published:2021-11-09
Supported by:
The National Natural Science Foundation of China (No. 41971425);The Special Fund for High Resolution Images Surveying and Mapping Application System (No. 42-Y30B04-9001-19/21)

摘要/Abstract

摘要： 装备在高分七号卫星上的是我国首个具备全波形记录功能的激光测高仪，主要用于获取地面稀疏的高程控制点，提高了同平台立体影像无地面控制点的立体测图精度。高分七号卫星激光测高标准化处理是测绘应用的关键步骤，所生成的激光测高标准产品是后续对外分发和业务化应用的重要前提。本文围绕高分七号卫星的激光数据，研究了激光测高数据处理方法，验证了激光测高标准产品的几何精度。选择几何定标区以及陕西华阴、德国北威州等多个验证区，结合高精度外业测量点和机载LiDAR-DSM数据，对高分七号卫星激光测高标准产品开展精度验证。验证结果表明，高分七号SLA03产品定标区两波束激光的平面精度分别为（3.896±1.029） m和（3.286±0.337） m、高程精度分别为（0.018±0.099） m和（-0.017±0.096） m。采用高程控制点质量控制参数ECP_Flag能有效标识出可用于高程控制的激光点，其中陕西华阴验证区两波束激光总体精度分别为（-0.113±2.519） m和（0.191±1.071） m，经质量控制后ECP_Flag标记为1的激光点高程精度为（0.111±0.152） m和（-0.064±0.115） m；德国北威州总体精度为（-0.897±5.485） m和（-0.202±6.207） m，ECP_Flag标记为1的激光点高程精度为（-0.304±0.190） m和（-0.279±0.220） m。目前高分七号卫星激光测高标准产品已在自然资源部国土卫星遥感应用中心实现业务化生产。

关键词: 高分七号卫星, 卫星激光测高, 标准产品, 精度验证, 高程控制点

Abstract: GF-7 satellite is equipped with the first full waveform laser altimeter of China for earth observation, which is mainly used to obtain sparse elevation control points on the ground, and ultimately improve the stereo mapping accuracy of stereo images without ground control points. The laser altimetry standardization processing of GF-7 satellite is the key step of surveying and mapping application, and the generated laser altimetry standard products are the important premise of subsequent distribution and application. Based on the GF-7 satellite laser altimetry data, this paper studies the method of laser altimetry data processing, and preliminarily validates the geometric accuracy of laser altimetry standard products. Three regions are selected to validate the accuracy of GF-7 satellite laser altimetry standard products, which contain the domestic geometric calibration area, Huayin of Shaanxi province, North Rhine-Westphalia of Germany. The results show that the planimetric accuracy of laser altimetry standard products SLA03 in calibration area is (3.896±1.029)m and (3.286±0.337)m, and elevation accuracy is (0.018±0.099)m,(-0.017±0.096)m in respectively for the two-beam lasers. Moreover, the elevation control point quality control parameter ECP_Flag can effectively identify the laser points that can be used for elevation control. The overall accuracy of Shaanxi Huayin area is (-0.113±2.519)m and (0.191±1.071)m, respectively for the two beams. The elevation accuracy of laser points marked with ECP_Flag=1 is (0.111±0.152)m and (-0.064±0.115)m. The overall accuracy of Norwich in Germany is (-0.897±5.485)m and (-0.202 ±6.207)m, and the elevation accuracy of laser points marked with ECP_Flag=1 is (-0.304±0.190)m and (-0.279±0.220)m, respectively for the two beams. At present, the laser altimetry standard products of GF-7 satellite have been daily produced in the Land Satellite Application Center of the Ministry of Natural Resources.

Key words: GF-7 satellite, satellite laser altimetry, standard product, accuracy validation, elevation control point

中图分类号:

P201
P228.3

李国元, 唐新明, 陈继溢, 么嘉棋, 刘诏, 高小明, 左志强, 周晓青. 高分七号卫星激光测高数据处理与精度初步验证[J]. 测绘学报, 2021, 50(10): 1338-1348.

LI Guoyuan, TANG Xinming, CHEN Jiyi, YAO Jiaqi, LIU Zhao, GAO Xiaoming, ZUO Zhiqiang, ZHOU Xiaoqing. Processing and preliminary accuracy validation of the GF-7 satellite laser altimetry data[J]. Acta Geodaetica et Cartographica Sinica, 2021, 50(10): 1338-1348.

参考文献

[1] 舒嵘, 黄庚华, 孔伟. 空间激光测高技术发展及展望[J]. 红外与激光工程, 2020, 49(11):9-18. SHU Rong, HUANG Genghua, KONG Wei. Development and review of space-based laser altimetry technology[J]. Infrared and Laser Engineering, 2020, 49(11):9-18.
[2] 唐新明,李国元. 对地观测卫星激光测高数据处理方法与工程实践[M].科学出版社,2019. TANG Xinming, LI Guoyuan. Earth observation Satellite Laser Altimetry Data Processing and Project Practice[M]. Science Press,2019.
[3] SCHUTZ B E, ZWALLY H J, SHUMAN C A, et al. Overview of the ICESat mission[J]. Geophysical Research Letters, 2005, 32(21):97-116.
[4] NEUMANN T A, MARTINO A J, MARKUS T, et al. The ice, cloud, and land elevation satellite-2 mission:a global geolocated photon product derived from the Advanced Topographic Laser Altimeter System[J]. Remote Sensing of Environment, 2019, 233:111325.
[5] DUBAYAH R, BLAIR J B, GOETZ S, et al. The global ecosystem dynamics investigation:high-resolution laser ranging of the Earth's forests and topography[J]. Science of Remote Sensing, 2020, 1:100002.
[6] 李国元, 唐新明. 资源三号02星激光测高精度分析与验证[J]. 测绘学报, 2017, 46(12):1939-1949.DOI:10.11947/j.AGCS.2017.20170174. LI Guoyuan, TANG Xinming. Analysis and validation of ZY-302 satellite laser altimetry data[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(12):1939-1949.DOI:10.11947/j.AGCS.2017.20170174.
[7] LI Guoyuan, TANG Xinming, GAO Xiaoming, et al. Integration of ZY3-02 satellite laser altimetry data and stereo images for high-accuracy mapping[J]. Photogrammetric Engineering & Remote Sensing, 2018, 84(9):569-578.
[8] LI G, GUO J, TANG X, et al. Preliminary quality analysis of GF-7 satellite laser altimeter full waveform data[J]. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020:129-134.
[9] 李春来, 任鑫, 刘建军, 等. 嫦娥一号激光测距数据及全月球DEM模型[J]. 中国科学:地球科学, 2010, 40(3):281-293. LI Chunlai, REN Xin, LIU Jianjun, et al.Chang'e-1 laser ranging data and all moon DEM model[J]. Scientia Sinica (Terrae), 2010, 40(3):281-293.
[10] MARKUS Thorsten,NEUMANN Tom,MARTINO Anthony,et al. The Ice, Cloud, and land Elevation Satellite-2(ICESat-2):Science requirements, concept, and implementation[J]. Remote Sensing of Enviroment, 2017(190):260-273.
[11] 唐新明, 李国元, 高小明, 等. 卫星激光测高严密几何模型构建及精度初步验证[J]. 测绘学报, 2016, 45(10):1182-1191.DOI:10.11947/j.AGCS.2016.20150357. TANG Xinming, LI Guoyuan, GAO Xiaoming, et al. The rigorous geometric model of satellite laser altimeter and preliminarily accuracy validation[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(10):1182-1191.DOI:10.11947/j.AGCS.2016.20150357.
[12] 李国元, 高小明, 陈继溢, 等. 资源三号02星激光测高数据质量分析[J]. 遥感学报, 2019, 23(6):1159-1166. LI Guoyuan, GAO Xiaoming, CHEN Jiyi, et al. Data quality analysis of ZY-302 satellite laser altimeter[J]. Journal of Remote Sensing, 2019, 23(6):1159-1166.
[13] 王欢, 李松, 周辉. 地球科学激光测高系统大气延迟修正算法[J]. 激光技术, 2007, 31(2):169-171. WANG Huan, LI Song, ZHOU Hui. Correction of atmosphere delay for geoscience laser altimeter system[J]. Laser Technology, 2007, 31(2):169-171.
[14] TANG Xinming, YAO Jiaqi, LI Guoyuan, et al. Cloud scattering influence on satellite laser altimetry data and its correction[J]. Applied Optics, 2020, 59(13):4064.
[15] YANG Yuekui, MARSHAK A, PALM S P, et al. Assessment of cloud screening with apparent surface reflectance in support of the ICESat-2 mission[J]. IEEE Transactions on Geoscience and Remote Sensing, 2013, 51(2):1037-1045.
[16] 范春波, 李建成, 王丹, 等. ICESAT/GLAS激光脚点定位及误差分析[J]. 大地测量与地球动力学, 2007, 27(1):104-106. FAN Chunbo, LI Jiancheng, WANG Dan, et al. ICESAT/GLAS laser footprint geolocation and error analysis[J]. Journal of Geodesy and Geodynamics, 2007, 27(1):104-106.
[17] 曹彬才, 方勇, 江振治, 等. ICESat-2 ATL08去噪算法实现及精度评价[J]. 测绘通报, 2020(5):25-30. CAO Bincai, FANG Yong, JIANG Zhenzhi, et al. Implementation and accuracy evaluation of ICESat-2 ATL08 denoising algorithms[J]. Bulletin of Surveying and Mapping, 2020(5):25-30.
[18] KWOK R, KACIMI S, MARKUS T, et al. ICESat-2 surface height and sea ice freeboard assessed with ATM LiDAR acquisitions from operation IceBridge[J]. Geophysical Research Letters, 2019, 46(20):11228-11236.
[19] WANG Cheng, ZHU Xiaoxiao, NIE Sheng, et al. Ground elevation accuracy verification of ICESat-2 data:a case study in Alaska, USA[J]. Optics Express, 2019, 27(26):38168-38179.
[20] 自然资源部国土卫星遥感应用中心.高分七号卫星在轨测试总结报告[R].北京:自然资源部国土卫星遥感应用中心,2020. Land Satellite Remote Sensing Application Center,MNR.Summary report on on orbit test of GF-7 satellite[R].Beijing:Land Satellite Remote Sensing Application Center,MNR,2020.
[21] 唐新明,李国元.高分七号卫星激光测高标准产品说明书V1.0[R].北京:自然资源部国土卫星遥感应用中心, 2020. TANG Xinming,LI Guoyuan. Product specification of GF-7 satellite laser altimetry standardV1.0[R].Beijing:Land Satellite Remote Sensing Application Center,MNR, 2020.
[22] 李国元. 对地观测卫星激光测高数据处理方法与工程实践[D]. 武汉:武汉大学, 2017. LI Guoyuan. Earth observing satellite laser altimeter data processing method and engineer practice[D]. Wuhan:Wuhan University, 2017.
[23] 杨雄丹, 李国元, 王佩贤, 等. 星载激光光斑影像激光指向变化探测法[J]. 测绘学报, 2020, 49(12):1591-1599.DOI:10.11947/j.AGCS.2020.20190423. YANG Xiongdan, LI Guoyuan, WANG Peixian, et al. Laser pointing changes detection method for space-borne laser spot image[J]. Acta Geodaetica et Cartographica Sinica, 2020, 49(12):1591-1599.DOI:10.11947/j.AGCS.2020.20190423.
[24] 袁小棋, 李国元, 唐新明, 等. 星载激光光斑影像质心自动提取方法[J]. 测绘学报, 2018, 47(2):135-141.DOI:10.11947/j.AGCS.2018.20170517. YUAN Xiaoqi, LI Guoyuan, TANG Xinming, et al. Centroid automatic extraction of spaceborne laser spot image[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(2):135-141.DOI:10.11947/j.AGCS.2018.20170517.
[25] 李国元, 黄佳鹏, 唐新明, 等. 距离门宽度对单光子激光测高卫星探测概率及测距精度的影响[J]. 测绘学报, 2018, 47(11):1487-1494.DOI:10.11947/j.AGCS.2018.20170469. LI Guoyuan, HUANG Jiapeng, TANG Xinming, et al. Influence of range gate width on detection probability and ranging accuracy of single photon laser altimetry satellite[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(11):1487-1494.DOI:10.11947/j.AGCS.2018.20170469.
[26] 唐新明, 李国元. 陆海激光卫星高程测量的思考[J]. 上海航天, 2019, 36(3):15-19. TANG Xinming, LI Guoyuan. Thoughts about land and sea satellite laser altimetry[J]. Aerospace Shanghai, 2019, 36(3):15-19.

高分七号卫星激光测高数据处理与精度初步验证

Processing and preliminary accuracy validation of the GF-7 satellite laser altimetry data

RichHTML

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 11

编辑推荐

Metrics

本文评价

[1]	李国元, 唐新明, 周晓青, 卢刚, 陈继溢, 黄庚华, 高小明, 刘诏, 欧阳斯达. 高分七号卫星激光测高仪无场几何定标法[J]. 测绘学报, 2022, 51(3): 401-412.
[2]	唐新明, 谢俊峰, 莫凡, 窦显辉, 李新, 李少宁, 李松, 黄庚华, 付兴科, 刘仁, 朱广彬, 欧阳斯达, 唐洪钊, 陈辉. 高分七号卫星双波束激光测高仪在轨几何检校与试验验证[J]. 测绘学报, 2021, 50(3): 384-395.
[3]	杨雄丹, 李国元, 王佩贤, 陈继溢, 莫凡, 么嘉棋, 金泽林. 星载激光光斑影像激光指向变化探测法[J]. 测绘学报, 2020, 49(12): 1591-1599.
[4]	沈焕锋, 李同文. 大气PM_2.5遥感制图研究进展[J]. 测绘学报, 2019, 48(12): 1624-1635.
[5]	袁小棋, 李国元, 唐新明, 高小明, 黄庚华, 李野. 星载激光光斑影像质心自动提取方法[J]. 测绘学报, 2018, 47(2): 135-141.
[6]	李国元, 黄佳鹏, 唐新明, 黄庚华, 周世宏, 赵严铭. 距离门宽度对单光子激光测高卫星探测概率及测距精度的影响[J]. 测绘学报, 2018, 47(11): 1487-1494.
[7]	李国元, 唐新明. 资源三号02星激光测高精度分析与验证[J]. 测绘学报, 2017, 46(12): 1939-1949.
[8]	唐新明, 李国元, 高小明, 陈继溢. 卫星激光测高严密几何模型构建及精度初步验证[J]. 测绘学报, 2016, 45(10): 1182-1191.
[9]	刘耀林,赵翔,马潇雅,刘殿锋. TM/ETM+影像大气校正产品质量评价方法研究[J]. 测绘学报, 2012, 41(4): 0-590.
[10]	李德仁. 我国第一颗民用三线阵立体测图卫星—资源三号卫星[J]. 测绘学报, 2012, 41(3): 0-416.
[11]	靳国旺,张薇,向茂生,吴一戎. 一种机载双天线InSAR系统干涉参数定标新方法[J]. 测绘学报, 2010, 39(1): 0-82.