High Dynamic Weak Signal Tracking Algorithm of a Beidou Vector Receiver Based on an Adaptive Square Root Cubature Kalman Filter [PDF]
Sensors, 2021 Compared with a scalar tracking receiver, the Beidou vector tracking receiver has the advantages of smaller tracking errors, fast loss-of-lock reacquisition, and high stability.
Na Li, Shufang Zhang, Yi Jiang
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Weak Signal Enhance Based on the Neural Network Assisted Empirical Mode Decomposition [PDF]
Sensors, 2020 In order to enhance weak signals in strong noise background, a weak signal enhancement method based on EMDNN (neural network-assisted empirical mode decomposition) is proposed.
Kai Chen +3 more
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Information capacity in the weak-signal approximation [PDF]
Physical Review E, 2010 We derive an approximate expression for mutual information in a broad class of discrete-time stationary channels with continuous input, under the constraint of vanishing input amplitude or power. The approximation describes the input by its covariance matrix, while the channel properties are described by the Fisher information matrix.
F. Rieke +16 more
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Field Enhancement for the Composite MXene/Black Phosphorus-Based Metasurface
Nanomaterials, 2022 Both MXene and black phosphorus (BP), which actg as hot two-dimensional (2D) materials, have unique optical properties and important applications for nano-micro optical devices.
Yihui Zhou +8 more
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A Study on the Acquisition Technology for Weak Seismic Signals from Deep Geothermal Reservoirs
Energies, 2023 There are rich geothermal resources in China and they are widely distributed. After years of continuous exploration and production, most of the shallow geothermal resources have been explored and the current exploration mainly focuses on deep ones. Among
Ruizhen Wang +5 more
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Overinference from Weak Signals and Underinference from Strong Signals [PDF]
SSRN Electronic Journal, 2022 Abstract When people receive new information, sometimes they revise their beliefs too much, and sometimes too little. We show that a key driver of whether people overinfer or underinfer is the strength of the information. Based on a model in which people know which direction to update in, but not exactly how much to update, we ...
Augenblick, Ned +2 more
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New Journal of Physics, 2023 Herein, a multiple bulging black phosphorus (BP)-based metasurface is proposed for studying its reflection responses and sensing performances through the finite-difference time-domain simulation method. It is shown that, the reflection dips are caused by
Nengxun Yang +9 more
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Weak signal extraction in non-stationary channel with weak measurement
Communications Physics, 2023 An emerging challenge of integrated communication and sensing is the extraction of weak sensing signals transmitted through an unknown non-stationary channel. In this work, we propose a weak signal extraction method with weak measurement.
Qi Song +7 more
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Weak Signal Processing Methods Based on Improved HHT and Filtering Techniques for Steel Wire Rope
Applied Sciences, 2022 As one of the most important processes in steel wire rope inspection, defect signal processing is of great significance in guaranteeing safety and precision measurement. Aiming at the weak signal detection of steel wire rope with mixed strands and noise,
Shiwei Liu +3 more
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A Lens Antenna with Reconfigurable Beams for mmWave Wind Profile Radar
Sensors, 2022 Wind profile radar systems require antennas with multiple radiation beams for detecting wind velocity, as well as with a low sidelobe and dual polarization for enhancing the sensitivity for the weak signal reflected from the turbulence.
Yafei Ding +3 more
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