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Radiometer Calibration Using Colocated GPS Radio Occultation Measurements
(Institute of Electrical and Electronics Engineers, 2014-10)
We present a new high-fidelity method of calibrating a cross-track scanning microwave radiometer using Global Positioning System (GPS) radio occultation (GPSRO) measurements. The radiometer and GPSRO receiver periodically ...
Assessment of Radiometer Calibration With GPS Radio Occultation for the MiRaTA CubeSat Mission
(Institute of Electrical and Electronics Engineers, 2016-12)
The microwave radiometer technology acceleration (MiRaTA) is a 3U CubeSat mission sponsored by the NASA Earth Science Technology Office. The science payload on MiRaTA consists of a triband microwave radiometer and global ...
Active Polarimetric Measurements for Identification and Characterization of Space Debris
(Institute of Electrical and Electronics Engineers, 2017-06)
A bench-top polarimeter ( λ = 1064 nm) is used to measure the polarimetric Bidirectional Reflectance Distribution Function (BRDF) of several common spacecraft materials in both bistatic and monostatic geometries. The Mueller ...
Space weather radiation effects on geostationary satellite solid-state power amplifiers
(American Geophysical Union, 2013-08)
In order to understand and mitigate the effects of space weather on the performance of geostationary (GEO) communications satellites, we analyze 16 years of archived telemetry data from Inmarsat, the UK-based telecommunications ...
Implementation and validation of a CubeSat laser transmitter
(SPIE, 2016)
The paper presents implementation and validation results for a CubeSat-scale laser transmitter. The master oscillator power amplifier (MOPA) design produces a 1550 nm, 200mW average power optical signal through the use of ...
Wavefront control in space with MEMS deformable mirrors for exoplanet direct imaging
(SPIE-SOC Photo-Optical Instrumentation Engineers, 2013-10)
To meet the high contrast requirement of 1 x 10(-10) to image an Earth-like planet around a sun-like star, space telescopes equipped with coronagraphs require wavefront control systems. Deformable mirrors (DMs) are a key ...