Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/85796
Title: Performance Assessment of the Radio Occultation Experiment for Commercial off-the-shelf Receivers on VELOX-CI Microsatellite
Authors: Li, Bing-Xuan
Han, Bo
Lim, Wee Seng
Tsai, Yung-Fu
Low, Kay-Soon
Keywords: VELOX-CI
Radio Occultation
Issue Date: 2017
Source: Li, B.-X., Han, B., Lim, W. S., Tsai, Y.-F., & Low, K.-S. (2017). Performance Assessment of the Radio Occultation Experiment for Commercial off-the-shelf Receivers on VELOX-CI Microsatellite. The 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017), 1669-1677.
Abstract: VELOX-CI is the second micro satellite of Satellite Research Center (SaRC) in Nanyang Technological University [1-2]. Since its launch on Dec. 16, 2015, VELOX-CI has performed a total of 136 radio occultation (RO) missions, and collected 448 hours’ GPS data with the lowest penetration altitude of 6 km. In this paper the radio occultation performance of the VELOX-CI’s COTS receiver and the space-borne receivers are compared in the upper troposphere (10~60km) in tropical region (latitude between 30°N and 30°S). VELOX-CI is designed to explore the potential of using the commercial-off-the-shelf (COTS) GPS receivers for RO mission for the first time. The satellite has a near equatorial orbit with an altitude of 550km. Three GPS antennas are located at the zenith, forward-velocity, and after-velocity directions. The tracked GPS signal phase, carrier-to-noise ratio C/N_0 are stored and sent to ground for post processing. The ionospheric profiles and preliminary tropospheric profiles are presented previously in [3]. In this paper, the VELOX-CI’s GPS RO payload is described. The RO data inversion procedures are introduced and a refractivity profile comparison study is made for refractive index obtained with VELOX-CI RO, radiosonde measurements and COSMIC data.
URI: https://hdl.handle.net/10356/85796
http://hdl.handle.net/10220/44109
URL: https://www.ion.org/gnss/abstracts.cfm?paperID=5510
Rights: © 2017 Institute of Navigation (ION). This paper was published in The 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017) and is made available as an electronic reprint (preprint) with permission of Institute of Navigation. The published version is available at: [https://www.ion.org/gnss/abstracts.cfm?paperID=5510]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Conference Papers

Page view(s) 50

384
Updated on Sep 29, 2022

Download(s) 50

98
Updated on Sep 29, 2022

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.