Conference proceeding
Monitoring cross-channel correlation solar scan measurements using the Iowa X-band polarimetric radars
2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, pp.1688-1691
07/2013
DOI: 10.1109/IGARSS.2013.6723119
Abstract
The sun is a convenient and frequently employed external radiation source for calibrating weather radar antenna and receiver characteristics. However, changes in solar activity can be a major source of error in interpreting the results of solar calibration for lower frequency bands. The cross-correlation of horizontal and vertical polarization signals, which is zero for perfectly unpolarized electromagnetic radiation, could give non-zero estimates if a quiet sun is not observed by the radar. In this paper, solar scan measurements are made at X-band to detect the effect of solar activity on this cross-correlation coefficient. To facilitate mitigation of instrument-wide errors, we employ multiple XPOL radars to simultaneously observe the sun. Though our experiments during a limited period show that the cross-channel correlation estimates obtained by X-band weather radars remain relatively unaffected by the variations in solar flux, the paper makes suggestions on improving the results.
Details
- Title: Subtitle
- Monitoring cross-channel correlation solar scan measurements using the Iowa X-band polarimetric radars
- Creators
- Kumar Vijay Mishra - University of IowaAnton Kruger - University of IowaWitold F Krajewski - University of Iowa
- Resource Type
- Conference proceeding
- Publication Details
- 2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, pp.1688-1691
- Publisher
- IEEE
- DOI
- 10.1109/IGARSS.2013.6723119
- ISSN
- 2153-6996
- eISSN
- 2153-7003
- Language
- English
- Date published
- 07/2013
- Academic Unit
- Civil and Environmental Engineering; Electrical and Computer Engineering
- Record Identifier
- 9984197201802771
Metrics
15 Record Views