TY - GEN
T1 - Joint distribution of interferometric phases for multibaseline InSAR
AU - Yang, Bo
AU - Xu, Huaping
AU - Li, Shuo
AU - Song, Zening
AU - Liu, Haifeng
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/10/31
Y1 - 2018/10/31
N2 - The joint probability density functon (pdf) of interferometric phases, used for the height estimation of multibaseline interferometric synthetic aperture radar (InSAR), was derived under the limited conditions, e.g., the real parts and imaginary parts of SAR images are uncorrelated, or the number of looks for each SAR image is not less than the number of observations which sacrifices spatial resolution. In this paper, firstly, the joint pdf of multibaseline interferometric phases with a general correlation between real parts and imaginary parts is given in case of unlimited number of looks. Then, the correctness of the expression is verified by comparing the proposed derivation with the conventional one through the single-look single-baseline system. Additionally, the correlation between interferometric phases is demonstrated by comparing the proposed joint pdf with the one under the independent interferograms assumption through single-look dual-baseline system. Finally, the exactness of the proposed joint pdf of mulitibaseline interferometric phases is confirmed through the real data.
AB - The joint probability density functon (pdf) of interferometric phases, used for the height estimation of multibaseline interferometric synthetic aperture radar (InSAR), was derived under the limited conditions, e.g., the real parts and imaginary parts of SAR images are uncorrelated, or the number of looks for each SAR image is not less than the number of observations which sacrifices spatial resolution. In this paper, firstly, the joint pdf of multibaseline interferometric phases with a general correlation between real parts and imaginary parts is given in case of unlimited number of looks. Then, the correctness of the expression is verified by comparing the proposed derivation with the conventional one through the single-look single-baseline system. Additionally, the correlation between interferometric phases is demonstrated by comparing the proposed joint pdf with the one under the independent interferograms assumption through single-look dual-baseline system. Finally, the exactness of the proposed joint pdf of mulitibaseline interferometric phases is confirmed through the real data.
KW - Height estimation
KW - InSAR
KW - Interferometric phases
KW - Joint pdf
KW - Multibaseline
UR - https://www.scopus.com/pages/publications/85064224500
U2 - 10.1109/IGARSS.2018.8519106
DO - 10.1109/IGARSS.2018.8519106
M3 - 会议稿件
AN - SCOPUS:85064224500
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 2176
EP - 2179
BT - 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018
Y2 - 22 July 2018 through 27 July 2018
ER -