CAJ | 학술논문

综合采用时相、极化和干涉3种维度的 SAR 数据进行土地覆盖分类。以黑龙江省逊克县多时相 ALOS PALSAR 数据覆盖区为研究区，利用不同时相极化 SAR、干涉 SAR 信号对地物特征的敏感性，结合后向散射强度和干涉相干的时变特征进行地物解译，发展了基于多时相、多极化、干涉 SAR 数据的SVM 土地覆盖分类方法。研究结果表明，引入双极化 SAR 中不同极化(HH-HV)间的相干系数，并结合所选择的时相特征、极化特征以及干涉相干特征进行分类，可解决双极化 SAR 影像中林地与城市及建设用地的混分问题，得到更高精度的土地覆盖分类结果。
종합채용시상、겁화화간섭3충유도적 SAR 수거진행토지복개분류。이흑룡강성손극현다시상 ALOS PALSAR 수거복개구위연구구，이용불동시상겁화 SAR、간섭 SAR 신호대지물특정적민감성，결합후향산사강도화간섭상간적시변특정진행지물해역，발전료기우다시상、다겁화、간섭 SAR 수거적SVM 토지복개분류방법。연구결과표명，인입쌍겁화 SAR 중불동겁화(HH-HV)간적상간계수，병결합소선택적시상특정、겁화특정이급간섭상간특정진행분류，가해결쌍겁화 SAR 영상중임지여성시급건설용지적혼분문제，득도경고정도적토지복개분류결과。
In order to study SAR land cover classification method,this paper uses the multi-dimensional combination of temporal,polarization and InSAR data.The area covered by space borne data of ALOS PALSAR in Xunke County,Hei longj iang Province was chosen as test site.A land cover classification technique of SVM based on multi-temporal,multi-polarization and InSAR data had been proposed,using the sensitivity to land cover type of multi-temporal,multi-polarization SAR data and InSAR measurements, and combing time series characteristic of backscatter coefficient and correlation coefficient to identify ground objects.The results showed the problem of confusion between forest land and urban construction land can be nicely solved,using the correlation coefficient between HH and HV,and also combing the selected temporal,polarization and InSAR characteristics.The land cover classification result with higher accuracy is gotten using the classification algorithm proposed in this paper.