Results 91 to 100 of about 156,809 (211)
, 2016 The non-dispersive fundamental shear horizontal (SH0) wave in plate-like structures is of practical importance in non-destructive testing (NDT) and structural health monitoring (SHM).
Huan, Qiang +3 more
core +1 more source
Multiple-access phased array antenna simulator for a digital beam forming system investigation [PDF]
Future versions of data relay satellite systems are currently being planned by NASA. Being given consideration for implementation are on-board digital beamforming techniques which will allow multiple users to simultaneously access a single S-band phased ...
Alexovich, Robert E. +5 more
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Pattern Compensation for Faulty Phased Array Antenna Based on Deep-Learning Technique
IEEE Open Journal of Antennas and PropagationThis study proposes an approach to compensate for pattern distortion in a phased array antenna caused by antenna element failures. The proposed approach utilizes a deep-learning network explicitly trained for a phased array antenna with damaged elements ...
Shu-Min Tsai +4 more
doaj +1 more source
Phase interpolation circuits using frequency multiplication for phased arrays [PDF]
, 1970 Antenna phasing circuit is described with the following advantages - 1/ increased number of phased elements, 2/ current repetition for each array element, 3/ circuit simplicity, and 4/ accurate phase interpolation.
Caron, P. R., Mailloux, R. J.
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AMPA experimental communications systems [PDF]
The program was conducted to demonstrate the satellite communication advantages of Adaptive Phased Array Technology. A laboratory based experiment was designed and implemented to demonstrate a low earth orbit satellite communications system.
Beckerman, D. +3 more
core +1 more source
天地一体化信息网络Low-orbit satellite communication systems are developing towards wide coverage and high performance. Traditional phased array antennas improve system linearity indicators through power backoff, a method that affects the equivalent isotropic radiated ...
HAN Xiaomeng +4 more
doaj
Optical techniques to feed and control GaAs MMIC modules for phased array antenna applications [PDF]
A complex signal distribution system is required to feed and control GaAs monolithic microwave integrated circuits (MMICs) for phased array antenna applications above 20 GHz.
Anzic, G. +3 more
core +1 more source
Design of an optically controlled Ka-band GaAs MMIC phased-array antenna [PDF]
Phased array antennas long were investigated to support the agile, multibeam radiating apertures with rapid reconfigurability needs of radar and communications.
Bhasin, Kul B. +3 more
core +1 more source
Acoustic Phased Array Quantification of Quiet Technology Demonstrator 3 Advanced Inlet Liner Noise Component [PDF]
Acoustic phased array flyover noise measurements were acquired as part of the Boeing 737 MAX-7 NASA Advanced Inlet Liner segment of the Quiet Technology Demonstrator 3 (QTD3) flight test program.
Brusniak, Leon +4 more
core +1 more source