Low frequency observations are desired for soil moisture and biomass remote sensing. Long wavelengths are needed to penetrate vegetation and Earths land surface. In addition to the technical challenges of developing Earth observing spaceflight instruments operating at low frequencies, the radio frequency spectrum allocated to remote sensing is limited. Signal-of-opportunity remote sensing offers the chance to use existing signals exploiting their allocated spectrum to make Earth science measurements. We have made observations of the radio frequency environment around 240-270 MHz and discuss properties of desired and undesired signals
The Soil Moisture Active Passive (SMAP) L-band microwave radiometer is a conical scanning instrument...
International audienceThe Ku-band (13.8 GHz – 2.2 cm) RADAR instrument onboard the Cassini-Huygens s...
We describe the discovery of a satellite of the Trojan asteroid (3548) Eurybates in images obtained ...
The Geostationary Operational Environmental Satellite R (GOES-R) series is the planned next generati...
This study examines the benefit of assimilating cloud motion vector (CMV) wind observations obtained...
Loss of control in flight (LOC-I) is the leading cause of fatal aircraft accidents. A study of LOC a...
The Unmanned Aircraft System (UAS) Traffic Management (UTM) effort at NASA aims to enable access to ...
Plans and status of a wind tunnel test programs at ARC, GRC, and LaRC of a small reference acoustic ...
The Soil Moisture Active/Passive (SMAP) satellite is a NASA mission that aims to provide global soil...
Chlorophyll-a, the most important photosynthetic pigment of marine phytoplankton, is one of the basi...
The project will continue the FY13 JSC IR&D (October-2012 to September-2013) effort in Travelling Wa...
We present a final report on our program to raise the Technology Readiness Level (TRL) of enhanced c...
EPIC (Earth Polychromatic Imaging Camera) is a 10-channel spectroradiometer onboard DSCOVR (Deep Spa...
As an asteroid descends toward Earth, it deposits energy in the atmosphere through aerodynamic drag ...
We introduce an innovative high-sensitivity broadband pump-probe spectroscopy system, based on Fouri...
The Soil Moisture Active Passive (SMAP) L-band microwave radiometer is a conical scanning instrument...
International audienceThe Ku-band (13.8 GHz – 2.2 cm) RADAR instrument onboard the Cassini-Huygens s...
We describe the discovery of a satellite of the Trojan asteroid (3548) Eurybates in images obtained ...
The Geostationary Operational Environmental Satellite R (GOES-R) series is the planned next generati...
This study examines the benefit of assimilating cloud motion vector (CMV) wind observations obtained...
Loss of control in flight (LOC-I) is the leading cause of fatal aircraft accidents. A study of LOC a...
The Unmanned Aircraft System (UAS) Traffic Management (UTM) effort at NASA aims to enable access to ...
Plans and status of a wind tunnel test programs at ARC, GRC, and LaRC of a small reference acoustic ...
The Soil Moisture Active/Passive (SMAP) satellite is a NASA mission that aims to provide global soil...
Chlorophyll-a, the most important photosynthetic pigment of marine phytoplankton, is one of the basi...
The project will continue the FY13 JSC IR&D (October-2012 to September-2013) effort in Travelling Wa...
We present a final report on our program to raise the Technology Readiness Level (TRL) of enhanced c...
EPIC (Earth Polychromatic Imaging Camera) is a 10-channel spectroradiometer onboard DSCOVR (Deep Spa...
As an asteroid descends toward Earth, it deposits energy in the atmosphere through aerodynamic drag ...
We introduce an innovative high-sensitivity broadband pump-probe spectroscopy system, based on Fouri...
The Soil Moisture Active Passive (SMAP) L-band microwave radiometer is a conical scanning instrument...
International audienceThe Ku-band (13.8 GHz – 2.2 cm) RADAR instrument onboard the Cassini-Huygens s...
We describe the discovery of a satellite of the Trojan asteroid (3548) Eurybates in images obtained ...