-
1281
System Modeling and Simulation of TianWen-2 Sampling on an Asteroid Regolith Surface
Published 2025-01-01“…In order to successfully implement an in situ exploration, a comprehensive understanding and evaluation of spacecraft dynamics and control behavior during sampling is essential for system design. In this paper, a system-level simulation method for the interaction between the spacecraft and the regolith surface is proposed. …”
Get full text
Article -
1282
Frequency-Domain Characterization of Finite Sample Linear Systems with Uniform Window Inputs
Published 2025-01-01“…Nevertheless, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>H</mi><mn>0</mn></msub><mrow><mo>[</mo><mi>k</mi><mo>]</mo></mrow></mrow></semantics></math></inline-formula> contains sufficient information to determine the system’s impulse response function (IRF). In the frequency-domain approach, we zero-pad the output array to a length of <i>N</i>. …”
Get full text
Article -
1283
Energy-efficient resource allocation algorithm for massive MIMO OFDMA downlink system
Published 2015-07-01“…An algorithm is proposed for energy-efficient resource allocation scheme in massive MIMO OFDMA downlink mobile communication system.A mathematical formulation of optimization issue is provided with the objective of maximizing system energy efficiency lower bound under the minimum data rate requirement of user,meanwhile the BS uses a zero-forcing(ZF) precoding.And then for optimizing energy efficiency function,the bandwidth allocation,power allocation and the number of antenna arrays at the BS are adjusted synchronously.First,an iterative algorithm derived from optimality condition for bandwidth assignment is proposed.Second,the properties of fractional programming and convex optimization are used to maximize the energy efficiency.Specifically,both the number of antenna arrays at the BS and the transmit data rate at the user are adjusted.Simulation results show that the proposed schemes not only have less iteration number but also have good perform for system energy efficiency and throughput.…”
Get full text
Article -
1284
Codebook Design for Parallel Dynamic Subarrays in Millimeter Wave Massive MIMO Systems
Published 2025-01-01“…This paper investigates the codebook design for the novel parallel dynamic subarrays for millimeter-wave (mmWave) massive MIMO systems. To generate high-resolution patterns, we design a novel parallel dynamic subarray structure where each radio frequency (RF) chain is dynamically connected to a subarray consisting of an antenna subset from two parallel arrays. …”
Get full text
Article -
1285
Quantum equilibrium propagation for efficient training of quantum systems based on Onsager reciprocity
Published 2025-07-01“…While such neuromorphic systems have been demonstrated in a wide range of platforms, it remains an open challenge to find efficient and general physics-based training approaches. …”
Get full text
Article -
1286
Guest Editorial: Electronic attack and protection for modern radar systems and radar networks
Published 2024-11-01“…Abstract It is our great pleasure to present you with this IET Radar, Sonar and Navigation special issue on “Electronic Attack and Protection for Modern Radar Systems and Radar Networks”. The recent development of fast digital to analogue converters (DACs) and analogue to digital converters (ADCs), field programmable gate arrays (FPGAs) and parallel computing has contributed to the development of modern radars that, at the same time, can also be more easily attacked using digital radio frequency memories (DRFMs). …”
Get full text
Article -
1287
Multifunctional In‐Memory Analog‐to‐Digital Converter for Next‐Gen Compute‐in‐Memory Systems
Published 2025-05-01“…Compute‐in‐memory (CIM) technology based on emerging nonvolatile memories (NVMs) has shown promise in enhancing artificial intelligence applications by integrating computation directly within NVM arrays. However, the efficiency of CIM systems is often curtailed by the substantial overhead that is caused by traditional complementary metal‐oxide‐semiconductor (CMOS)‐based analog‐to‐digital converters (ADCs). …”
Get full text
Article -
1288
Photoelectrocatalytic coupled chlorine degradation of tetracycline hydrochloride in recirculating aquaculture system (RAS)
Published 2025-07-01“…However, effective methods for antibiotic removal in recirculating aquaculture systems (RAS) remain scarcely reported. This study systematically constructed three distinct degradation systems - photocatalytic (P), photoelectrocatalytic (PE), and photoelectrocatalytic coupled with chlorine (PE-Cl−) - based on TiO2 nanotube arrays for efficient tetracycline hydrochloride (TCH) degradation in RAS. …”
Get full text
Article -
1289
Development of a Technique for Discrete-Logical Decision-Making in Medical Information Systems
Published 2024-12-01“…Humans cannot always process large arrays of medical information and determine an accurate diagnosis in complex situations. …”
Get full text
Article -
1290
Integrating cyber-physical systems with embedding technology for controlling autonomous vehicle driving
Published 2025-06-01“…A structured reward system is established to accommodate real-time fluctuations, resulting in safer and more efficient decision-making. …”
Get full text
Article -
1291
Load matching in a direct-coupled photovoltaic system-application to Thevenin's equivalent loads
Published 2006-01-01Get full text
Article -
1292
Load matching in a direct-coupled photovoltaic system-application to Thevenin's equivalent loads
Published 2006-01-01Get full text
Article -
1293
FPGA-Based Synchronization of Frequency-Domain Interferometer for QKD
Published 2025-01-01“…The phase-variable RF signal is generated by the field-programmable gate array (FPGA) at the transmitter and the receiver using GTX transceivers. …”
Get full text
Article -
1294
Codesign of Transmit Waveform and Receive Filter with Similarity Constraints for FDA-MIMO Radar
Published 2025-05-01“…The codesign of the receive filter and transmit waveform under similarity constraints is one of the key technologies in frequency diverse array multiple-input multiple-output (FDA-MIMO) radar systems. …”
Get full text
Article -
1295
Progress in silicon-based reconfigurable and programmable all-optical signal processing chips
Published 2025-05-01Get full text
Article -
1296
Performance Estimation of Low Power and Area-Efficient Parallel Pipelined FFT
Published 2025-06-01“…It is also used in image and video processing and is critical for algorithms that manipulate pixels, scale, and compress data when many multiplications need to be performed quickly. IoT and embedded systems are beneficial for low-power systems as BI reduces power consumption and switching activity.…”
Get full text
Article -
1297
MIMO Geometry and Antenna Design for High Capacity and Improved Coverage in mm-Wave Systems
Published 2013-01-01“…We describe the general procedure in order to maximize the capacity for our considered geometry, which consists of a circular arc array at the transmitter and a uniform linear array (ULA) at the receiver. …”
Get full text
Article -
1298
A metasurface assisted pin loaded antenna for high gain millimeter wave systems
Published 2025-04-01“…For further gain enhancement, the antenna incorporates a single layer of metasurface made up of a compact and uniquely designed reflecting metamaterial unit cell array. The distinctiveness of these unit cell design is centered on a simple 2 $$\times$$ 2 array created by combining circular and hexagonal split rings. …”
Get full text
Article -
1299
Modelling and Simulation of Perturb and Observe MPPT Algorithm Based on The PI Controller for Photovoltaic System
Published 2022-11-01“…The proposed PV system is composed of a Photovoltaic array, DC to DC boost type converter and an MPPT algorithm using perturb and observe method. 1Soltech 1STH-220-P module type was chosen in this study for the simulation and proposed PV The array consists of 40 rows of PV modules connected in parallel, while each row consists of 10 modules connected in a series. …”
Get full text
Article -
1300
Fuzzy Logic Control of an Automatic Changeover for the Management of a Grid-Connected Photovoltaic System
Published 2023-01-01“…The load feeding signal behaviour has been obtained when either of the switches are open or closed over a period of 1000 s. In this system, the batteries charge is either done by the PV array or the power grid according to the established rules of the system.…”
Get full text
Article