Research and Experimental Verification on High Sensitivity and High Stability Microwave Radiometer

NIU Lijie; LIU Hao; WU Ji

doi:10.11999/JEIT161112

Volume 39 Issue 8

Aug. 2017

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(8): 2028-2032

NIU Lijie, LIU Hao, WU Ji. Research and Experimental Verification on High Sensitivity and High Stability Microwave Radiometer[J]. Journal of Electronics & Information Technology, 2017, 39(8): 2028-2032. doi: 10.11999/JEIT161112

Citation:

NIU Lijie, LIU Hao, WU Ji. Research and Experimental Verification on High Sensitivity and High Stability Microwave Radiometer[J]. Journal of Electronics & Information Technology, 2017, 39(8): 2028-2032. doi: 10.11999/JEIT161112

Citation:

PDF( 872 KB)

Research and Experimental Verification on High Sensitivity and High Stability Microwave Radiometer

doi: 10.11999/JEIT161112

1.
2.
(Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China)

Received Date: 2016-10-20
Rev Recd Date: 2017-02-21
Publish Date: 2017-08-19

Abstract

Abstract

Global measurement of ocean salinity using satellite borne synthetic aperture radiometer is one of the research focuses in the field of microwave remote sensing. In order to achieve the accuracy of the ocean salinity detection, the radiometer units of the synthetic aperture radiometer need to have very high sensitivity and very high calibration stability. In this paper, the technique of the radiometer with high sensitivity and high stability is researched. High stability is realized by the real-time calibration method, and the sensitivity is effectively improved by the calibration data average technology. The optimal average time is obtained by the frequency domain analysis for the first time. Long time stability experiments are completed to demonstrate its performance. Experimental results show that the stability of this L-band radiometer reaches 0.12 K (in 3 days), and the sensitivity reaches 0.1 K, which can reach the requirement of the synthetic aperture radiometer for ocean salinity detection.
- High stability radiometer,
- L-band microwave radiometer,
- Noise injection radiometer,
- Ocean salinity

FullText(HTML)

References(19)

References

李青侠, 张靖, 郭伟, 等. 微波辐射计遥感海洋盐度的研究进展[J]. 海洋技术学报, 2007, 26(3): 8-12.

LI Qingxia, ZHANG Jing, GUO Wei, et al. Research progress of remote sensing of ocean salinity by microwave radiometer [J]. Ocean Technology, 2007, 26(3): 8-12.

MCMULLAN K D, BROWN M A, MARTIN-NEIRA M, et al. SMOS: The payload[J]. IEEE Transactions on Geoscience and Remote Sensing, 2008, 46(3): 594-605. doi: 10.1109/ TGRS.2007.914809.

MARTIN-NEIRA M, OLIVA R, CORBELLA I, et al. SMOS instrument performance and calibration after 6 years in orbit[J]. Remote Sensing of Environment, 2016, 180(8): 19-39. doi: 10.1016/j.rse.2016.02.036.

LE VINE D M, LAGERLOEF G S E, COLOMB F R, et al. Aquarius: An instrument to monitor sea surface salinity from space[J]. IEEE Transactions on Geosciences and Remote Sensing, 2007, 45(7): 2040-2050. doi: 10.1109/TGRS.2007. 898092.

VINE D M L, DINNAT E P, MEISSNER T, et al. Status of Aquarius/SAC-D and Aquarius salinity retrievals[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2015, 8(12): 5401-5415. doi: 10.1109/ JSTARS.2015.2427159.

殷小军, 张庆君, 王睿, 等. 海洋盐度探测卫星的现状分析和未来趋势[J]. 航天器工程, 2016, 25(1): 119-123. doi: 10.3969/ J.ISSN.1673-8748.2016.01.016.

YIN Xiaojun, ZHANG Qingjun, WANG Rui, et al. Development status and trends of sea surface salt satellite[J]. Spacecraft Engineering, 2016, 25(1): 119-123. doi: 10.3969/ J.ISSN.1673-8748.2016.01.016.

LIU Hao, ZHU Di, NIU Lijie, et al. MICAP (Microwave Imager Combined Active and Passive): A new instrument for Chinese ocean salinity satellite[C]. Proceedings of IEEE International on Geoscience and Remote Sensing Symposium, Milan, Italy, 2015: 184-187.

NIU Lijie, LIU Hao, WU Lin, et al. Experimental study of an L-band synthetic aperture radiometer for ocean salinity measurement[C]. Proceedings of IEEE International on Geoscience and Remote Sensing Symposium, Beijing, China, 2016: 418-421.

李靖, 张俊荣, 赵凯. 实时定标微波辐射计[J]. 电子科学学刊, 1998, 20(2): 285-288.

LI Jing, ZHANG Junrong, and ZHAO Kai. Real-time calibrated microwave radiometer[J]. Journal of Electronics, 1998, 20(2): 285-288.

赵凯, 史久新, 张汉德. 高灵敏度机载L波段微波辐射计探测海表盐度[J]. 遥感学报, 2008, 12(2): 277283.

ZHAO Kai, SHI Jiuxin, and ZHANG Hande. High sensitivity airborne L-band microwave radiometer measurements of sea surface salinity[J]. Journal of Remote Sensing, 2008, 12(2): 277-283.

LIU Hao, NIU Lijie, WU Lin, et al. IMI(Interferometric Microwave Imager): A L/S/C tri-frequency radiometer for Water Cycle Observation Mission(WCOM)[C]. Proceedings of IEEE International on Geoscience and Remote Sensing Symposium, Beijing, China, 2016: 3445-3447.

WU Lin. Contribution to spatial bias mitigation in interferometric radiometers devoted to earth observation: Application to the SMOS mission[D]. [Ph.D. dissertation], Universitat Politcnica de Catalunya (UPC), 2014.

GOODBERLET M A and MEAD J B. Measuring precision and accuracy drift of radiometer-reported brightness temperature[J]. IEEE Transactions on Geosciences and Remote Sensing, 2008, 46(11): 3827-3831. doi: 10.1109/ TGRS.2008.2001034.

GOODBERLET M A and MEAD J B. Two-load radiometer precision and accuracy[J]. IEEE Transactions on Geosciences and Remote Sensing, 2006, 44(1): 58-67. doi: 10.1109/TGRS.2005.860206.

WILSON W J, TANNER A, and PELLERANO F. Ultra stable microwave radiometers for future sea surface salinity missions[C]. Earth Science Technology Conference, Pasadena, USA, 2002: 11-13.

Relative Articles

Supplements(0)

Cited By

Proportional views