The National Aeronautics and Space Administration Advanced Communications Technology Satellite (ACTS) propagation experiment was designed to obtain slant-path attenuation statistics for locations within the United States and Canada for use in the design of low-margin Ka-band satellite communication systems. Experimenters at seven different locations have collected propagation data for more than...

The deep learning-based satellite image analysis and retraining systems are getting emerging technologies to enhance the capability of sophisticated terrestrial objects. In principle, apply explainable DNN model for process retraining, we consider a new acceleration scheduling mechanism. Especially, conventional schemes cause serious performance degradation due computational complexity costs in...

[1] We report on new observations of the orbital position of Phobos, the innermost natural satellite of Mars, and show that these observations provide an improved estimate of the rate of tidal dissipation within Mars. The observations were made with the Mars Orbiter Laser Altimeter instrument on the Mars Global Surveyor spacecraft. The secular acceleration in along-track orbital motion is conve...