Results 171 to 180 of about 6,360,569 (404)
IEEE Open Journal of Antennas and PropagationIn this paper, a low-cost compact decoupled bandwidth enhancement technique is proposed to address the high mutual coupling issue between wideband closely-spaced multiple-input and multiple-out (MIMO) patch antennas.
Lina Ma +4 more
doaj +1 more source
Shape of Pulses of Radio-frequency Radiation from the Sun [PDF]
, 1948 Simon Williams
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Performance Triggered Adaptive Model Reduction for Soil Moisture Estimation in Precision Irrigation
International Journal of Adaptive Control and Signal Processing, EarlyView.ABSTRACT Accurate soil moisture information is essential for precise irrigation to enhance water use efficiency. Estimating soil moisture based on limited soil moisture sensors is especially critical for obtaining comprehensive soil moisture information when dealing with large‐scale agricultural fields.
Sarupa Debnath +4 more
wiley +1 more source
Method and apparatus for sputtering utilizing an apertured electrode and a pulsed substrate bias [PDF]
, 1973 The method and equipment used for sputtering by use of an apertured electrode and a pulsed substrate bias are discussed. The technique combines the advantages of ion plating with the versatility of a radio frequency sputtered source.
Przybyszewski, J. S., Shaltens, R. K.
core +1 more source
A 53–125 GHz chip to double‐ridge rectangular waveguide transition
Electronics LettersA novel chip to double‐ridge rectangular waveguide transition, with an ultra‐broadband operation bandwidth exceeding three standard rectangular waveguide (WR) bands of WR15, WR12, and WR10 is demonstrated for the first time in this letter, to the best of
Martin Pittermann +2 more
doaj +1 more source
Neural Network Adaptive Control With Long Short‐Term Memory
International Journal of Adaptive Control and Signal Processing, EarlyView.ABSTRACT In this study, we propose a novel adaptive control architecture that provides dramatically better transient response performance compared to conventional adaptive control methods. This is accomplished by the synergistic employment of a traditional adaptive neural network (ANN) controller and a long short‐term memory (LSTM) network.
Emirhan Inanc +4 more
wiley +1 more source
High frequency band communication application in Malaysia [PDF]
, 2008 High frequency (HF) radio frequencies are between 3 and 30 MHz.[1] Also known as the decameter band or decameter wave as the wavelengths range from one to ten decameters. Shortwave (2.310 - 25.820 MHz)[1] overlaps and is slightly lower than HF. Since the
Abdul Razak, Mohammad Hafizul +1 more
core
A Point Cloud Improvement Method for High-Resolution 4D mmWave Radar Imagery
Remote SensingTo meet the requirement of autonomous driving development, high-quality point cloud generation of the environment has become the focus of 4D mmWave radar development.
Qingmian Wan +5 more
doaj +1 more source
Radio-Frequency Radiation from the Spiral Nebula Messier 81 [PDF]
, 1953 Robert Brown, C. Hazard
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