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1361
KDFE: Robust KNN-Driven Fusion Estimator for LEO-SoOP Under Multi-Beam Phased-Array Dynamics
Published 2025-07-01“…Accurate Doppler frequency estimation for Low Earth Orbit (LEO)-based Signals of Opportunity (SoOP) positioning faces significant challenges from extreme dynamics (±40 kHz Doppler shift, 0.4 Hz/ms fluctuation) and severe SNR fluctuations induced by multi-beam switching. …”
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1362
Improvement of Positive and Negative Feedback Power Hardware-in-the-Loop Interfaces Using Smith Predictor
Published 2025-07-01“…Experimental results show a reduction in phase shift by 21.17° and attenuation improvement of 24.3% for V-PCD at a sample time of 100 µs. …”
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1363
Anvil–radiation diurnal interaction: shortwave radiative-heating destabilization driving the diurnal variation of convective anvil outflow and its modulation on the radiative cance...
Published 2025-05-01“…Convective organizations and life stages are derived from the images of infrared brightness temperature (BT) of geostationary (GEO) satellites based on a variable-BT segment-tracking algorithm, which allows the possibility for quantifying the convective anvil outflow. …”
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1364
Performance Investigation of Underwater Wireless Optical Communication System Using M -ary OAMSK Modulation Over Oceanic Turbulence
Published 2017-01-01“…With Blahut–Arimoto algorithm, the channel capacity for this UWOC system is obtained. …”
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1365
Design of indoor positioning method jointly assisted by RIS and IMU
Published 2025-04-01“…Finally, the Levenberg-Marquardt algorithm was employed to solve the optimization problem and estimate the UE’s position. …”
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1366
Dynamic Characteristic Optimization of Main Valve in Eight-Speed Auto Transmission Hydraulic Control System
Published 2025-04-01“…Further optimal structural parameters for the valve spool are acquired by using a genetic algorithm, and a fluid flow channel simulation the software is Ansys Student 2024 R2 is conducted. …”
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1367
Revolutionizing colorectal cancer detection: A breakthrough in microbiome data analysis.
Published 2025-01-01“…The emergence of Next Generation Sequencing (NGS) technology has catalyzed a paradigm shift in clinical diagnostics and personalized medicine, enabling unprecedented access to high-throughput microbiome data. …”
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1368
Research on the Impact Scope of Bus Stations Based on the Application of Bus Lanes
Published 2018-01-01“…Designation of bus lane means implementing the priority of urban bus system by monopolizing portion of the road resources, which has greater attraction for passengers and can impel the shift of bus passenger flow, thus impacting bus stations. …”
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1369
Study on remote sensing satellites random access to internet constellation and on-orbit intelligent processing
Published 2022-04-01“…The low earth orbit (LEO) satellite Internet constellation is a hot spot in current global research.And it is highly anticipated that the LEO satellite Internet constellation supports random access to remote sensing satellites and direct on-orbit information processing.However, due to the different orbital heights, the difficult access problems of the bidirectional highly dynamic heterogeneous constellation will be caused.Firstly, the random access scenario under different orbit characteristics and satellite numbers of LEO satellite Internet constellation was set up, and the impact of the spatiotemporal discontinuous visibility and Doppler frequency shift on the remote sensing satellite access performance was focused on.Secondly, based on the characteristics of the random access scenario, the process of on-orbit processing tasks with different delays and the allocation of satellite-ground functions were analyzed.Finally, the problems existing in the current on-orbit intelligent processing algorithm and the focus of future research were expounded, so as to provide reliable theoretical support for the development and applications of LEO satellite Internet constellation and remote sensing satellites in the future.…”
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1370
A frequency offset compensation method based on all phase FFT amplitude
Published 2022-06-01“…Distance measurement is an important part of the wireless location technology.The ranging accuracy of millimeter wave based distance measurement depends on the frequency estimation accuracy of beat signals from the targets, but the existing frequency estimation algorithms have the shortcomings of either high complexity or low accuracy.In order to improve the ranging accuracy, the frequency compensation value and frequency estimation method based on all phase FFT amplitude was proposed to improve the performance of frequency estimation.Firstly, the signal amplitude was estimated based on the relationship between its all phase FFT and its conventional FFT spectrum.Moreover, using the relationship between the estimated signal amplitude, the signal spectrum amplitude and frequency compensation value, the frequency compensation value was solved by Newton iterative algorithm.Then, the frequency compensation value was used to shift the frequency of the signal, and the frequency compensation value was estimated again to obtain the final estimation value of the signal frequency, from which the distance of the target was calculated.Finally, simulation results were presented to show that the proposed method has higher distance measurement accuracy than the existing methods.…”
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1371
Synthesis of Amplitude-Phase Distribution in Quasiconcave an Antenna Array
Published 2017-04-01“…Such a transition leads to a change in the radiation pattern, i.e. to a shift in its main maximum, an increase in the level of the side lobes, and appearance of two maxima of the radiation pattern. …”
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1372
Kinetic rate constant prediction supports the conformational selection mechanism of protein binding.
Published 2012-01-01“…In this paper, a feature selection and regression algorithm is applied to mine a large set of molecular descriptors and construct simple models for association and dissociation rate constants using empirical data. …”
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1373
Low-hit frequency-hopping communication systems for power Internet of things random access
Published 2023-01-01“…The communication network is an essential component of the data acquisition and information transmission in power Internet of things (IoT).To meet the development requirements of multiple power service in the future, the wireless communication technique with flexible-access and high scalability is one of the development directions for power IoT.Due to the features of large-scale access, random access time, high security and reliability for information transmission of power IoT, a frequency-hopping (FH) technique with low-hit rate for random access was proposed.The construction algorithm of such FH pattern was based upon the combination and shift operation of conventional FH sequences.By the theoretical arithmetic and numerical simulation, the properties of the proposed FH pattern and the error-rate of the FH-based power IoT were evaluated.The analysis reveals that the new class of FH sequences and the system can meet the requirements of large-scale access and highly reliable communication for the power IoT, which has good application prospects.…”
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1374
Target Torque Control of Two-speed DCT Clutch based on GA-LQR
Published 2020-03-01“…Regarded impact degree and the specific sliding friction work as evaluation indictor, and taking the impact degree and the sliding work as quadratic target functions, the Linear Quadratic Regulator (LQR) method is used to determine the clutch target torque of the torque phase of the shifting process. The global search ability of the genetic algorithm (GA) is used to optimally select the weighting matrix in the LQR. …”
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1375
Dynamic multicriteria optimization for the nurse scheduling problem
Published 2025-01-01“…The purpose is to maximize the level of "work well-being" of nurses formulated as the minimization of "aversion" which translates into costs or penalties for certain undesirable work shifts. For this, a series of criteria are defined to estimate the preference structure of nurses according to the hospital center specifications by assigning costs for undesirable shift assignments. …”
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1376
Three-Dimensional Point Cloud Displacement Analysis for Tunnel Deformation Detection Using Mobile Laser Scanning
Published 2025-01-01“…Aligned point clouds from different times were processed using the Iterative Closest Point (ICP) algorithm to achieve high-accuracy displacement analysis. …”
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1377
A New Multistage Encryption Scheme Using Linear Feedback Register and Chaos-Based Quantum Map
Published 2022-01-01“…In this work, a secure image encryption scheme is proposed using linear feedback shift register (LFSR) and chaos-based quantum chaotic map. …”
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1378
ESTIMATION OF THE DEPTH OF ANESTHESIA BY ELECTROENCEPHALOGRAM USING NEURAL NETWORKS
Published 2019-07-01“…In order to create a practical version of the algorithm, it is necessary to investigate further the noise stability of the proposed method and develop a set of algorithmic solutions, which ensure a reliable operation of the algorithm in the presence of noise.…”
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1379
Method of vibration diagnostics of the technical condition of electronic equipment structures
Published 2021-04-01“…The article considers the method of vibration diagnostics of onboard electronic devices based on the analysis of resonant frequencies. An algorithm for diagnosing mechanical defects of the studied blocks and nodes is presented. …”
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1380
Optimization strategy of UAV‐ARIS assisted vehicular communication system
Published 2024-11-01“…Then, a joint RIS phase shift, amplification and UAV trail optimization algorithm is proposed to pursue a high achievable rate. …”
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