[PP2-2-7-6] Polarimetric coherences

Polarimetric coherences are complex-valued polarimetric correlation coefficients assessing the redundance between different polarimetric observations informing about their divergence in information. They can be formed among mutual polarimetric observations showing their degree of correlation. The polarimetric coherence consists of a magnitude, ranging between zero (no correlation) and one (identical), and a phase information, running from -180° to 180°. Typically polarimetric coherences are calculated between the co-polarimetric (HH, VV) channes, as well as the cross-polarimetric channels (HV, VH). The latter polarimetric coherence assesses the system noise inherent in the recorded polarimetric data, if a monostatic systems (transmitting and receiving sensor on the same sensing platform) is used for acquisition.

External resources

• Chen, S. W., Li, Y. Z., & Wang, X. S. (2015). Crop discrimination based on polarimetric correlation coefficients optimization for PolSAR data. International Journal of Remote Sensing, 36(16), 4233-4249. DOI: 10.1080/01431161.2015.1079345
  Chen, S. W., Li, Y. Z., & Wang, X. S. (2015). Crop discrimination based on polarimetric correlation coefficients optimization for PolSAR data. International Journal of Remote Sensing, 36(16), 4233-4249. DOI: 10.1080/01431161.2015.1079345
• Lee, J. S., Pottier, E. (2009). Polarimetric Radar Imaging. From Basics to Applications. CRC Press. ISBN: 978-142005492 Cloude, S. R. (2009). Polarisation: Applications in Remote Sensing. Oxford University Press, pp. 352. ISBN: 978-0199569731
• Mattia, F., Le Toan, T., Souyris, J. C., De Carolis, C., Floury, N., Posa, F. and Pasquariello, N. G. (1997). The effect of surface roughness on multifrequency polarimetric SAR data. IEEE Transactions on Geoscience and Remote Sensing, 35(4), 954-966. DOI: 10.1109/36.602537
  Mattia, F., Le Toan, T., Souyris, J. C., De Carolis, C., Floury, N., Posa, F. and Pasquariello, N. G. (1997). The effect of surface roughness on multifrequency polarimetric SAR data. IEEE Transactions on Geoscience and Remote Sensing, 35(4), 954-966. DOI: 10.1109/36.602537

Learning outcomes

• 1596 - Explain polarimetric coherences

  Explain polarimetric coherences

Self assessment

Outgoing relations

• [PP2-2-7-6] Polarimetric coherences subclassof [PP2-2-7] Polarimetry

Contributors

• Thomas Jagdhuber
  German Aerospace Center
  https://scholar.google.de/citations?user=ZEaPq_4AAAAJ&hl=de