Phase-delay altimetry from low elevation GPSR measurements
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GPS remote sensing altimetry oceanography↗
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Results for “delays”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Monitoring the JMR with Terrestrial GPS measurements of Zenith tropospheric delay
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JMR Jason-1 GPS radiometer↗
Time-delay inteferometry
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gravitational waves↗
Time-delay inteferometry
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gravitational waves↗
Time-delay interferometry and noise cancellation schemes for LISA
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interferometry gravitational waves↗
Time delay interferometry
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gravitational waves↗
Laser Interferometer Space Antenna (LISA): time delay interferometry for LISA
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LISA antennas interferometry lasers↗
Quantifying the information content in GPS slant path delays
We quantify the amount of information on atmospheric water vapor that can be extracted from GPS line of sight measurement, by comparing these measurements to those made with acollocated pointed water vapor radiometer.
GPS metrology↗
Mars meter-scale roughness: Goldstone Solar System Radar delay-doppler database
The entire fourteen-year database of Goldstone Solar System Radar Mars near-nadir radar scattering model fits is being revised using the latest topography from the Mars Global Surveyor Mars Orbiter Laser Altimeter instrument.
radar Mars MOLA MGS laser altimeter scale roughnes↗
Cryogenic delay line for Far-IR interferometry in space
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interferometry far-IR delayline↗
Simulations of effects of vibration and pathlength modulation errors on the accuracy of SIM delay measurements
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SIM calibration astrometry↗
Time-delay Interferometry for Space-Based Gravitational Wave Detectors
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interferometry gravitational wave detectors↗
Time-delay analysis of LISA gravitational data: elimination spacecraft motion effects
LISA (Laser Interferometer Space Antenna) is a proposed mission which will use coherent laser beams exchanged between three remote spacecraft to detect and study low-frequency cosmic gravitational radiation.
Laser interferometer space↗
Discriminating a gravitational-wave background from intrumental noise using time-delay interferometry
The first in-flight Doppler tracking measurements performed by LISA will be used to assess its detector performance.
Radiation coupling gravitational radiation galaxy↗
Discriminating a gravitational wave background from instrumental noise using time-delay interferometry
The first in-flight Doppler tracking measurements performed by LISA will be used to asess its detector performance.
gravitational waves interferometry↗
The Effect of Two Lensing Galaxies on the Time Delay in PKS1830-211
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gravitational lens galaxies↗
The Effect of Two Lensing Galaxies on the Time Delay in PKS 1820-211
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Gravitational Lenses Cosmology↗
Accuracy of the Residual Delay Absolute Phase Algorithm
Interferometric synthetic aperture radar (IFSAR) has become a useful technology for producing high-quality topographic maps. These measurements are required to reconstruct the three-dimensional coordinate of a point in an IFSAR image: the range, azimuth and elevation. The first is obtained by timing the return of the radar pulse, the second by measuring the doppler shift, and the last by measuring the phase difference between the signals received at two displaced antennae.
IFSAR interferometric synthetic aperture radar top↗