Two-dimensional dealiasing of Doppler velocities

Liu Guoqing, Ge Wenzhong, Zhang Xueru, Wu Dinghao, Zhou Ji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a new approach technique to upfold the ambiguous velocity encountered in the velocity measurement of Doppler weather radar. The two dimensional dealiasing algorithm described here is based on the computer vision and least square method. The idea behind this technique is to adjust simultaneously all gates in a two - dimensional area to minimize the sum of the squares of the discontinuous region due to aliasing. Because of the edge searching and reconstruction, the solution is global and optimized in the least square sense. Moreover, the new technique is conceptually simple, i.e., it is not necessary to solve a large scale equations and easy to implement without the assumption of smoothness, and most importantly, the dealiasing errors do not propagate.

Original languageEnglish (US)
Title of host publicationInternational Conference on Radar Meteorology
Editors Anon
Pages154-155
Number of pages2
StatePublished - 1995
EventProceedings of the 1995 27th Conference on Radar Meteorology - Vail, CO, USA
Duration: Oct 9 1995Oct 13 1995

Other

OtherProceedings of the 1995 27th Conference on Radar Meteorology
CityVail, CO, USA
Period10/9/9510/13/95

Fingerprint

Meteorological radar
Doppler radar
Velocity measurement
Computer vision

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Guoqing, L., Wenzhong, G., Xueru, Z., Dinghao, W., & Ji, Z. (1995). Two-dimensional dealiasing of Doppler velocities. In Anon (Ed.), International Conference on Radar Meteorology (pp. 154-155)
Guoqing, Liu ; Wenzhong, Ge ; Xueru, Zhang ; Dinghao, Wu ; Ji, Zhou. / Two-dimensional dealiasing of Doppler velocities. International Conference on Radar Meteorology. editor / Anon. 1995. pp. 154-155
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Guoqing, L, Wenzhong, G, Xueru, Z, Dinghao, W & Ji, Z 1995, Two-dimensional dealiasing of Doppler velocities. in Anon (ed.), International Conference on Radar Meteorology. pp. 154-155, Proceedings of the 1995 27th Conference on Radar Meteorology, Vail, CO, USA, 10/9/95.

Two-dimensional dealiasing of Doppler velocities. / Guoqing, Liu; Wenzhong, Ge; Xueru, Zhang; Dinghao, Wu; Ji, Zhou.

International Conference on Radar Meteorology. ed. / Anon. 1995. p. 154-155.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - This paper presents a new approach technique to upfold the ambiguous velocity encountered in the velocity measurement of Doppler weather radar. The two dimensional dealiasing algorithm described here is based on the computer vision and least square method. The idea behind this technique is to adjust simultaneously all gates in a two - dimensional area to minimize the sum of the squares of the discontinuous region due to aliasing. Because of the edge searching and reconstruction, the solution is global and optimized in the least square sense. Moreover, the new technique is conceptually simple, i.e., it is not necessary to solve a large scale equations and easy to implement without the assumption of smoothness, and most importantly, the dealiasing errors do not propagate.

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Guoqing L, Wenzhong G, Xueru Z, Dinghao W, Ji Z. Two-dimensional dealiasing of Doppler velocities. In Anon, editor, International Conference on Radar Meteorology. 1995. p. 154-155