A laser ranging instrument is being developed to measure the spatial variations in the Earth's gravity field. It will range in space to a cube corner on a passive co-orbiting sub-satellite with a velocity accuracy of 20 to 50 microns/sec by using AlGaAs lasers intensity modulated at 2 GHz.
Semiconductor Laser-Based Ranging Instrument for Earth Gravity Measurements
1995
6 pages
Report
Keine Angabe
Englisch
Optics & Lasers , Airborne range and orbit determination , Aluminum gallium arsenide lasers , Earth gravitation , Gravitational fields , Laser range finders , Onboard data processing , Satellite-borne instruments , Satellite-to-satellite tracking , Signal processing , Spatial distribution , Airborne/spaceborne computers , Aluminum gallium arsenides , Communication satellites , Passive satellites , Satellite drag , Semiconductors(Materials) , Velocity measurement
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