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Calibration of the Advanced Very High Resolution RadiometerGrant, Barbara Geri, 1957- January 1989 (has links)
This thesis describes the first calibration of the Advanced Very High Resolution Radiometer (AVHRR) on the NOAA-11 satellite. Two methods were used to perform the calibration. Both methods relied on calibrated data from a high resolution sensor that passed over the target site at the White Sands Missile Range, New Mexico, on November 21, 1988. The first approach required ground reflectance and atmospheric optical depth data taken during overpass time. The second method relied on historical ground reflectance data and utilized standard atmospheric models. The calibration gains varied widely depending on which set of calibration offsets were used, but the agreement between the gains computed by the two methods was very close: approximately 1% in channel 1 and 2% in channel 2. This close agreement indicates that Method 2, which does not require the complexity and expense of field work, could be a viable option for future calibration efforts.
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Evaluation and testing of the Naval Postgraduate School Satellite (NPSAT1) Solar Cell Measurement SystemLo, Benson W. 09 1900 (has links)
Approved for public release; distribution is unlimited. / The Naval Postgraduate School Spacecraft Architecture and Technology Demonstration Satellite, NPSAT1, launching in the fall of 2006, will include a system to measure the performance of new experimental triplejunction solar cells. The measuring circuit in the Solar Cell Measurement System (SMS) is based on a circuit developed at the Naval Postgraduate School many years ago. It will trace the cells' current-voltage (I-V) curves while in orbit. The SMS consists of a radiation-hardened microcontroller that uses a radiation-hardened FPGA to monitor a collection of sensors. A current-sink circuit is used to measure the current and voltage on the test cells. Prior to launch, extensive testing is being performed on the system to ensure proper operation. The tests consist of subjecting solar cells and the measuring circuit electronics under conditions modeling the space environment while taking cell measurements. This thesis presents the mission information, system design, test setup, and test results of the SMS measuring circuit. / Ensign, United States Naval Reserve
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Adaptive interplanetary orbit determinationCrain, Timothy Price, January 2000 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2000. / Vita. Includes bibliographical references. Available also from UMI/Dissertation Abstracts International.
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Performance investigation of multi-element antenna terminals for personal communications : TDMA LEOS system applications /Choy, Faith. January 2001 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2001. / Includes bibliographical references.
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Halo orbit design and optimization /McCaine, Gina. January 2004 (has links) (PDF)
Thesis (M.S. in Astronautical Engineering)--Naval Postgraduate School, March 2004. / Thesis advisor(s): I. Michael Ross, Don Danielson. Includes bibliographical references (p. 39-40). Also available online.
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Study on center of mass calibration and K-band ranging system calibration of the GRACE missionWang, Furun. Tapley, Byron D., January 2003 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2003. / Supervisor: Byron D. Tapley. Vita. Includes bibliographical references. Available also from UMI Company.
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Jason-1 precision orbit determination using GPS combined with SLR and DORIS tracking dataChoi, Key-rok, Tapley, Byron D., January 2003 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2003. / Supervisor: Byron D. Tapley. Vita. Includes bibliographical references. Available also from UMI Company.
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GPS carrier phase ambiguity resolution using satellite-satellite single differences /Gabor, Michael Joseph, January 1999 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 1999. / Vita. Includes bibliographical references (leaves 181-197). Available also in a digital version from Dissertation Abstracts.
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Hybrid precision orbit determination for low altitude satellites by GPS trackingLee, Seung-woo. January 2002 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.
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Mitigation of spacecraft attitude estimation error via Kalman filtering /Watson, Vincent C. January 2003 (has links) (PDF)
Thesis (M.S. in Astronautical Engineering)--Naval Postgraduate School, December 2003. / Thesis advisor(s): Roberto Cristi, Brij Agrawal. Includes bibliographical references (p. 53). Also available online.
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