xue1.0

ISCE SAOCOM L-SAR数据处理示例AOCOM是阿根廷空间局CONAE发射的地球观测卫星SAOCOM 1A于2018年10月8日发射SAOCOM 1B于2020年8月30日发射L波段约1.275 GHz分辨率7-100米覆盖范围在50-400公里。SAOCOM系统与意大利COSMO-SkyMed星座在X波段联合运行可以提供每天两次覆盖生成X和L波段SAR数据。1. 配置文件设定stripmapApp.py参数的XML文件StripmapApp_SAOCOM.xml:?xml version1.0 encodingUTF-8? insarApp component nameinsar property namesensor nameSAOCOM_SLC/property component namereference catalog/home/bodo/Dropbox/Argentina/SAOCOM/reference_SAOCOM.xml/catalog /component component namesecondary catalog/home/bodo/Dropbox/Argentina/SAOCOM/secondary_SAOCOM.xml/catalog /component property namedemFilename value/home/bodo/Dropbox/Argentina/SAOCOM/demLat_S33_S31_Lon_W070_W068.dem.wgs84/value /property property namedo denseoffsetsTrue/property property namedo split spectrumTrue/property property nameunwrapper namesnaphu/property property namedo dispersiveTrue/property property namedispersive filter kernel x-size800/property property namedispersive filter kernel y-size800/property property namedispersive filter kernel sigma_x100/property property namedispersive filter kernel sigma_y100/property property namedispersive filter kernel rotation0/property property namedispersive filter number of iterations5/property property namedispersive filter mask typeconnected_components/property property namedispersive filter coherence threshold0.6/property /component /insarApp包含主影像信息的XML文件reference_SAOCOM.xml:component namereference property nameIMAGEFILE /raid/InSAR/SAOCOM/Master/67496-EOL1ASARSAO1A515794/Data/slc-acqId0000008546-a-sm7-0000000000-s7dp-vv /property property nameXEMTFILE /raid/InSAR/SAOCOM/Master/67496-EOL1ASARSAO1A515794/S1A_OPER_SAR_EOSSP__CORE_L1A_OLF_20200221T122503.xemt /property property nameXMLFILE /raid/InSAR/SAOCOM/Master/67496-EOL1ASARSAO1A515794/Data/slc-acqId0000008546-a-sm7-0000000000-s7dp-vv.xml /property property nameOUTPUT /raid/InSAR/SAOCOM/Master/67496-EOL1ASARSAO1A515794/slc-acqId0000008546-a-sm7-0000000000-s7dp-vv /property /component包含辅影像信息的XML文件secondary_SAOCOM.xml:component namereference property nameIMAGEFILE /raid/InSAR/SAOCOM/Slave/67498-EOL1ASARSAO1A515796/Data/slc-acqId0000010907-a-sm7-0000000000-s7dp-vv /property property nameXEMTFILE /raid/InSAR/SAOCOM/Slave/67498-EOL1ASARSAO1A515796/S1A_OPER_SAR_EOSSP__CORE_L1A_OLF_20200221T122606.xemt /property property nameXMLFILE /raid/InSAR/SAOCOM/Slave/67498-EOL1ASARSAO1A515796/Data/slc-acqId0000010907-a-sm7-0000000000-s7dp-vv.xml /property property nameOUTPUT /raid/InSAR/SAOCOM/Slave/67498-EOL1ASARSAO1A515796/slc-acqId0000010907-a-sm7-0000000000-s7dp-vv.slc /property /component2. SRTM DEM使用dem.py自动下载DEM demLat_S33_S31_Lon_W070_W068.dem.wgs84fixImageXml.py -f -i demLat_S33_S31_Lon_W070_W068.dem.wgs843. 干涉处理stripmapApp.pystripmapApp.py --steps /home/bodo/Dropbox/Argentina/SAOCOM/stripmapApp_SAOCOM.xml 21 | tee SAOCOM_test.log使用mdx.py查看结果mdx.py -P interferogram/filt_topophase.unw.geo mv out.ppm SAOCOM_filt_topophase.unw.geo.ppm convert -density 300 -fuzz 1% -trim SAOCOM_filt_topophase.unw.geo.ppm SAOCOM_filt_topophase.unw.geo.jpg滤波后解缠图mdx.py -P interferogram/phsig.cor.geo mv out.ppm SAOCOM_phsig.cor.geo.ppm convert -density 300 -fuzz 1% -trim SAOCOM_phsig.cor.geo.ppm SAOCOM_phsig.cor.geo.jpg滤波后相干性图使用ImageMagick的convert命令生成快速预览图convert -density 300 -crop 2000x40001000 repage SAOCOM_filt_topophase.unw.geo.jpg SAOCOM_filt_topophase.unw.geo.crop.jpg电离层影响分析使用ISCE split-spectrum处理Heresh Fattahi et al.; Cunren Liang et al.可以估计电离层的色散和非色散成分并校正干涉图。该SAOCOM示例包含了一些电离层扰动。电离层示例数据下载https://catalogos.conae.gov.ar/catalogo/catalogoSatSaocomAdel.html参考链接https://up-rs-esp.github.io/posts/2020/11/SAOCOM-Ifgs-and-ISCE/#quick-views-of-ionospheric-impacthttps://github.com/isce-framework/isce2