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Dianzi Jishu Yingyong
ISSN 0258-7998 · National Computer System Engineering Research Institute of China · 1,853 articles in the index
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Journal Article
Adaptive semantic alignment image captioning method
The method for image captioning based on frozen large language models breaks through the limitations of traditional models in utilizing external knowledge, but it tends to overly rely on textual priors, leading to insufficient use of visual features and hallucination issues in descriptions. To…
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Journal Article
Design of multi-channel RFID reading and writing system applied to in vitro diagnostic instruments
To realize real-time integration of sample detection data and traceability processing of patient diagnostic information in the in vitro diagnostic instrument assembly line, a multi-channel RFID read/write system was developed for the transmission track and reagent tray detection of the in vitro…
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Journal Article
Power supply design for OTP storage array based on high-speed level shifter circuits
In response to the voltage requirements of anti-fuse OTP memory in different working modes, a level shifter unit and block power supply design with Cascode structure is proposed based on the SMIC 28 nm CMOS process. Realize the rapid switching of WL/PL and BL terminal voltage of OTP memory in…
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Journal Article
FPGA graphical design for primary radar signal preprocessing
To address the low development efficiency of FPGA signal processing in primary radar systems, a graphical design method based on System Generator is proposed. This approach constructs visual models for algorithms such as digital beamforming, down-conversion, and pulse compression, enabling…
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Journal Article
Design and implementation of data acquisition and processing software for NMR logging
The logging-while-drilling nuclear magnetic resonance (LWD NMR) instrument can provide in-situ formation porosity and permeability measurements unaffected by mud invasion, but it poses severe challenges to adaptability under extreme conditions and system integration and reliability. Currently, the…
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Journal Article
Calculation of equivalent velocity in spaceborne SAR signal processing
To improve the imaging quality of spaceborne SAR, this study focuses on addressing the velocity spatial variation characteristics among different range cells during imaging processing. It investigates high-precision equivalent velocity calculation methods to achieve accurate focusing of targets in…
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Journal Article
Research on malicious traffic identification based on improved Kohonen neural network
This paper investigates a malicious traffic identification technique based on an improved self-organizing competitive neural network. It designs a data feature engineering module for network traffic, constructs an S_Kohonen neural network model for network malicious traffic identification, and…
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Journal Article
Research on cybersecurity large model decision-making in power monitoring systems
Aiming at the shortcomings of traditional security protection for power monitoring systems in attack detection, traceability and unknown threat response, this study constructs a power monitoring decision-making system by integrating knowledge graph and large model technologies. Multi-source…
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Journal Article
X-band load-insensitive high-efficiency power amplifier MMIC using asymmetric matching network
To address antenna impedance variations, a high-efficiency and load-insensitive power amplifier operating in the 8~12 GHz band is designed using 0.25 μm GaN HEMT technology. By employing an asymmetric impedance matching network structure, the design achieves an optimal balance among high…
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Journal Article
A frequency offset estimation algorithm and FPGA implementation
To enhance the accuracy and real-time performance of frequency offset estimation in wireless communication systems, this paper proposes a frequency offset estimation algorithm that integrates autocorrelation and pilot-assisted methods, and implements and optimizes the algorithm on the Xilinx…
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Journal Article
Chinese sensitive feature recognition in power material domain based on semantic matching
The traditional Chinese sensitive feature recognition methods in the field of power material supply chain mainly identify the flat feature entities with a single structure, and are difficult to target the nested feature entities with complex structures. These nested feature entities with complex…
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Journal Article
Reinforcement learning-based multi-agent collaborative task allocation and simulation validation
To address the challenges in decision modeling and solution methods for collaborative task allocation, this study investigates multi-agent collaborative task allocation technologies to achieve efficient coordination and dynamic task distribution among multiple agents. A collaborative task…
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Journal Article
Adaptive scheduling algorithm for multifunctional radar based on overall planning
Aiming at the scheduling problem of multifunction phased array radar, a self-adaptive scheduling algorithm based on the overall planning concept is proposed. This algorithm divides the entire scanning area into sectors and dynamically calculates the scheduling strategy to be used based on the…
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Journal Article
Research on the credibility testing method of AI algorithm for power grid dispatching in multi spatio-temporal scenarios
This paper proposes a method for testing the credibility of a grid dispatching AI algorithm based on an exponential hierarchical structure algorithm, aiming to evaluate the model performance and robustness of the grid dispatching AI algorithm in multiple temporal and spatial scenarios. Firstly…
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Journal Article
Design of a stepping frequency ground penetrating radar array system based on RFSoC
Stepping frequency ground penetrating radar (GPR) has been widely developed and used in shallow-surface high-resolution detection due to its ultra-wideband advantage. However, the general stepping-frequency GPR hardware implementation often adopts a multi-board coordination scheme, and is mostly…
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Journal Article
Research and design of a multi-channel sonar signal acquisition system based on FPGA and DSP
Sonar is a highly prevalent underwater detection technology. In multi-channel sonar echo signal acquisition, the accuracy of individual channels, phase and amplitude consistency among channels, and crosstalk can all compromise the final detection outcomes, leading to significant discrepancies…
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Journal Article
Efficiency research methodology for a boost full-bridge LLC resonant converter
The aerospace electric propulsion power supply has strict requirements for high efficiency and reliability. The boost full-bridge LLC resonant converter has become the mainstream solution in this field due to its high efficiency, simple topology and high reliability. Under the condition of meeting…
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Journal Article
Design and implementation of low power SM4 hardware based on MCU
With the rapid development of domestic new energy vehicles, the demand for master MCUs equipped with domestic encryption algorithms has been growing steadily. To meet this demand, this paper designs a universal hardware security module for MCUs based on the SM4 cryptographic algorithm. The module…
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Journal Article
An intelligent prediction method for tobacco threshing and redrying process parameters based on XGBoost
The key parameters of the tobacco redrying process are crucial to the final product quality. The traditional parameter control method, which relies on experience, suffers from poor stability and response hysteresis, making it difficult to meet the demands of modern industrial production. To address…
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Journal Article
A novel slew-rate enhanced constant-transconductance rail-to-rail operational amplifier
This paper presents a novel constant-gm rail-to-rail operational amplifier with enhanced slew rate. The input stage utilizes an improved redundant differential pair incorporating series-transistor and current-mirror techniques to reduce subthreshold current and minimize transconductance variation…
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