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2022 IEEE 5th International Conference on Electronics Technology (ICET)最新文献

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Research on Constructing New Integrated Service Access Areas in the Era of 5G&F5G 5G&F5G时代构建新型综合业务接入区研究
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9824040
Lin Yan
Facing the era of 5G&F5G, the metro transport network needs to deepen the cognition of “Unified Opitcal Cable Network” and intensify constructing new integrated service access areas. This paper comprehensively analyzes the main problems in constructing integrated service access areas, and puts forward a mechanism based on “surface-point-line”.
面对5G&F5G时代,城域交通网需要深化对“统一光缆网”的认知,加大综合业务接入新领域的建设力度。综合分析了综合服务接入区建设存在的主要问题,提出了基于“面-点-线”的综合服务接入区建设机制。
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引用次数: 0
Model and Adaptive Flight-by-Wire Control Law of an Autogyro 自旋翼机模型及自适应电传控制律
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9824474
Su Chenglin, Liu Juanxia, Lin Qing
The autogyro is the first successful type of rotating-wing aircraft. With simple mechanical structure and high aerodynamic efficiency, it has significant development and application potential in UAM and military scenes, which presents new requirements for flight control. This paper presents a new control scheme for autogyro. An example autogyro is modeled based on explicit blade element method. The dynamic modes and stability are analyzed. To tackle the model uncertainty and disturbances, a new control scheme is proposed with normal load control. The scheme employs Robust Servomechanism LQR method augmented with L1 adaptive controller to achieve fast compensation. Numerical simulations illustrate the superior performance of the proposed scheme in the presence of disturbances.
自旋翼机是第一种成功的旋翼飞机。其机械结构简单,气动效率高,在UAM和军事场景中具有重要的发展和应用潜力,对飞行控制提出了新的要求。本文提出了一种新的自旋翼控制方案。基于显式叶片单元法对一个实例自旋翼机进行了建模。分析了系统的动态模态和稳定性。针对模型的不确定性和扰动,提出了一种新的正常负荷控制方案。该方案采用鲁棒伺服LQR方法增强L1自适应控制器实现快速补偿。数值模拟结果表明,该方法在存在干扰的情况下具有良好的性能。
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引用次数: 0
A 10Gsps TIADC with Mismatch Error Correction Based on Phase-Adjustment Method 基于相位调整法的10Gsps TIADC失配误差校正
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9824184
Ye Haoqi, Jin Ge, C. Lian
Time-interleaved analog-to-digital conversion (TIADC) is one of the generic waveform digitization techniques in high-speed signal measurement. However, the dynamic performance of TIADC system will be inevitably deteriorated by the mismatch error between different ADC channels because of the uncertain skews between clocks. This paper proposes a fast skew adjustment method to adjust the phase differences between the high-speed clocks to ideal degrees. We designed a TIADC data acquisition system with lOGsps sampling rate based on this phase adjustment method. In addition, this method can also be applied to address the synchronous clock alignment problem. Good performance was demonstrated in an experiment.
时间交错模数转换(TIADC)是高速信号测量中常用的波形数字化技术之一。然而,由于时钟之间的不确定偏差,不同ADC通道之间的不匹配误差将不可避免地降低TIADC系统的动态性能。本文提出了一种快速倾斜调整方法,将高速时钟之间的相位差调整到理想的程度。基于这种相位调整方法,设计了采样率为lOGsps的TIADC数据采集系统。此外,该方法还可用于解决同步时钟对准问题。在实验中证明了良好的性能。
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引用次数: 0
Research on Dynamic Differential Filtering Method of MPOS Based on Centralized Kalman Filtering 基于集中卡尔曼滤波的MPOS动态差分滤波方法研究
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9824748
Junfang Bao, Jianli Li, Gang Liu
Due to its low cost, small size and good performance, MPOS is an indispensable core component of airborne products. A high-precision airborne MPOS system is proposed in this paper. The composition of the system is introduced, and the mathematical model is established in this paper. Furthermore, the centralized Kalman filter method is used to filter the combination of MIMU and differential GNSS(RTK-GPS). The actual flight test was conducted to verify the proposed algorithm and system. The result shows that in the airplane operating environment with complex disturbances, the propose system can still obtain high positioning accuracy, with a position accuracy of 0.4m, a speed accuracy of 0.02m/s, and a heading accuracy Up to 0.04°, which can met the requirements of higher aircraft differential positioning accuracy, and has a certain degree of adaptability and practical application value.
MPOS具有成本低、体积小、性能好等优点,是航空产品不可缺少的核心部件。提出了一种高精度机载MPOS系统。介绍了系统的组成,建立了系统的数学模型。在此基础上,采用集中卡尔曼滤波方法对MIMU和差分GNSS(RTK-GPS)组合进行滤波。实际飞行试验验证了所提出的算法和系统。结果表明,在复杂干扰的飞机运行环境中,所提系统仍能获得较高的定位精度,位置精度可达0.4m,速度精度可达0.02m/s,航向精度可达0.04°,能够满足较高的飞机差分定位精度要求,具有一定的适应性和实际应用价值。
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引用次数: 0
A Method for Suppressing Coloured Background Noise in Low-Voltage Power Lines 一种低压输电线路彩色背景噪声的抑制方法
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9824917
Fei Zhong, D. Kang, Xiaoyan Yao, Wenzhou Liu
In low-voltage power line communication, the persistence of coloured background noise seriously affects the signal transmission quality of power line communication, so it is particularly important to suppress coloured background noise. In this paper, a compression-aware coloured background noise suppression method is proposed to suppress the coloured background noise in power line communication by using the sparse structure property of the compression-aware reconstructed signal. Simulation experiments show that, compared with the traditional wavelet denoising method, the CS denoising method reduces MSE by 16.1% and improves SNR from 22.4db to 27.9db, an improvement of 12.7%. Especially in the case of short signal lengths, the denoising performance of CS is substantially improved and has obvious advantages, which can significantly improve the communication quality of power line transmission.
在低压电力线通信中,彩色背景噪声的持续存在严重影响电力线通信的信号传输质量,因此对彩色背景噪声的抑制显得尤为重要。本文提出了一种压缩感知彩色背景噪声抑制方法,利用压缩感知重构信号的稀疏结构特性抑制电力线通信中的彩色背景噪声。仿真实验表明,与传统的小波去噪方法相比,CS去噪方法的MSE降低了16.1%,信噪比从22.4db提高到27.9db,提高了12.7%。特别是在信号长度较短的情况下,CS的去噪性能得到大幅度提高,具有明显的优势,可以显著提高电力线传输的通信质量。
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引用次数: 1
Nonlinear System Identification Using Dynamic Memristor-Based Reservoir Computing System 基于动态忆阻器的油藏计算系统非线性系统辨识
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9824316
Hongbo Liu, Shukai Duan, Wen-fang Jiang, Jie Li, Lidan Wang
Nonlinear systems have attracted a lot of attention because of their widespread existence in nature and life. Among them, the modeling and prediction of nonlinear systems is the focus of the research field of nonlinear systems. Although the traditional neural network has achieved good results, it is not conducive to being applied to practical problems due to the unsatisfactory training speed and large energy consumption. In this paper, considering the nonlinear characteristics of the memristor and the fast training speed of reservoir computing, we combine memristor and reservoir computing. Lorenz time series prediction and second-order nonlinear system modeling tasks are demonstrated. The results show that our model performs well in nonlinear time series prediction and nonlinear system model identification, the feasibility of the method is demonstrated. This is of great significance to the study of nonlinear systems and can be effectively applied to the analysis of nonlinear systems.
非线性系统由于其在自然界和生活中的广泛存在而引起了人们的广泛关注。其中,非线性系统的建模与预测是非线性系统研究领域的热点。传统的神经网络虽然取得了较好的效果,但由于训练速度不理想,能量消耗大,不利于实际问题的应用。本文考虑到忆阻器的非线性特性和储层计算的快速训练速度,将忆阻器与储层计算相结合。演示了洛伦兹时间序列预测和二阶非线性系统建模任务。结果表明,该模型在非线性时间序列预测和非线性系统模型识别方面具有较好的效果,证明了该方法的可行性。这对非线性系统的研究具有重要意义,可以有效地应用于非线性系统的分析。
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引用次数: 0
Single Event Effects Radiation Hardened by Design for DC-DC Converter Based on Automatic Detection and Dynamic Compensation 基于自动检测和动态补偿的DC-DC变换器单事件效应辐射强化设计
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9825163
Nan Liu, Zhongjie Guo, Hui-Hung Lu, Jiale Yang
The boost converter is taken as an example to analyze the sensitivity of DC-DC converter to single-event transient, and the influence of single-event transient on the loop response is studied. Based on the analysis of loop sensitive nodes, the single-particle energy is obtained in time by the on-chip automatic detection method at the circuit and system level, and then converted into parameters for dynamic compensation, realizing the improvement of transient characteristics under different single-particle energies. Using the method in this work, the circuit design, layout design and physical verification of a highly reliable Boost converter based on a commercial 0.18$mu$m BCD process are completed. The experimental results show that the input voltage is $2.9mathrm{V} sim 4.5mathrm{V}$, the output voltage is $5.9mathrm{V} sim 7.9mathrm{V}$, and the load capacity is 55mA.Under the action of the single-particle transient effect, the maximum fluctuation of the output voltage does not exceed a ripple voltage, and the suppression ability reaches more than 86.07%, which can resist the single-particle bombardment of LET= $100MeVcdot cm^{2} /$mg.
以升压变换器为例,分析了DC-DC变换器对单事件暂态的灵敏度,研究了单事件暂态对回路响应的影响。在分析回路敏感节点的基础上,通过电路级和系统级的片上自动检测方法及时获取单粒子能量,并将其转换为参数进行动态补偿,实现了不同单粒子能量下暂态特性的改善。利用本工作的方法,完成了基于商用0.18 $mu$ m BCD工艺的高可靠性升压变换器的电路设计、版图设计和物理验证。实验结果表明,输入电压为$2.9mathrm{V} sim 4.5mathrm{V}$,输出电压为$5.9mathrm{V} sim 7.9mathrm{V}$,负载容量为55mA。在单粒子瞬态效应的作用下,输出电压的最大波动不超过纹波电压,抑制能力达到86.07以上%, which can resist the single-particle bombardment of LET= $100MeVcdot cm^{2} /$mg.
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引用次数: 0
The Existence Condition for Power-Flow Considering Current Constraints and Control Objectives of DC Microgrids with CPLs under Distributed Control 分布式控制下带cpl的直流微电网考虑电流约束和控制目标的潮流存在条件
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9823986
Jiawei Li, Zhangjie Liu, M. Su, Ruisong Liu
High-precision current sharing and voltage regulation are the objects of a DC microgrid. In addition, a feasible power solution is the key to the stable operation of DC microgrid. Therefore, it is important to investigate the existence of the feasible power-flow solution of DC microgrid, especially for those contain m CPLs. In this paper, a distributed control method is proposed to achieve current sharing and voltage regulation. On this basis, a power-flow equation of the DC microgrid considering current constraints with n DGs and m CPLs is built. Then, under the limitation of currents of DGs, the sufficient solvability conditions are obtained based on Brouwer's fixed-point theorem. Last, simulation results verify the feasibility of the proposed theorems.
高精度的电流共享和电压调节是直流微电网的目标。此外,可行的电源方案是保证直流微电网稳定运行的关键。因此,研究可行的直流微电网潮流解的存在性是十分重要的,特别是对于含有多个cpl的微电网。本文提出了一种分布式控制方法来实现电流共享和电压调节。在此基础上,建立了考虑电流约束的具有n个dg和m个cpl的直流微电网功率流方程。然后,利用Brouwer不动点定理,在电流限制下,得到了微分方程的充分可解条件。最后,仿真结果验证了所提定理的可行性。
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引用次数: 1
An in Situ Embedded System for Electrocardiography and Photoplethysmography Acquisition 一种用于心电图和光容积脉搏波采集的原位嵌入式系统
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9824681
Zepeng Huang, Zewei Luo, L. Lyu, Xing Wu
In this paper, an in situ wearable system combined with Electrocardiography (ECG), Photoplethysmography (PPG), and acceleration signals are developed. To avoid artifact signals, a dynamic Kalman filtering algorithm suitable for embedded systems is proposed for smoothing of ECG signal and PPG signal. A precise frequency filtering algorithm for PPG motion artifact reconstruction is used. The whole system shows good stability and can measure the physiological signal for long time. This work provides a practical solution for the wearable electronics.
本文研制了一种结合心电图(ECG)、光电容积脉搏波(PPG)和加速度信号的现场可穿戴系统。为了避免伪信号,提出了一种适用于嵌入式系统的动态卡尔曼滤波算法,对心电信号和心电信号进行平滑处理。采用一种精确的频率滤波算法对PPG运动伪影进行重建。整个系统具有良好的稳定性,可以长时间测量生理信号。这项工作为可穿戴电子产品提供了一个实用的解决方案。
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引用次数: 0
Control Strategy with Self Voltage-balancing of Cascade Converter 串级变换器的自电压平衡控制策略
Pub Date : 2022-05-13 DOI: 10.1109/icet55676.2022.9824358
Xiaoyu Xu, Xin Wang, Menglu Cai, Chengyong Zhao, J. Xuan, Yi Lu
The cascaded converter topology with series on the DC side and parallel on the AC side is currently a better choice for the converter of the DC system in the scenario of medium /low voltage and small capacity. Aiming at the problem of capacitor voltage-balancing on the DC side of the cascaded converter, a cascaded converter control strategy with self voltage-balancing function that can supply power to the passive/weak AC microgrid is proposed in this paper, including voltage/frequency control with self voltage-balancing and optimal droop control with self voltage-balancing. Compared with the traditional voltage-balancing strategy, this strategy can participate in the frequency regulation of the system, and the optimal droop control can also avoid the data communication between sub-modules(SMs). The simulation results show that the proposed strategy can realize the voltage sharing function under steady-state and various fault conditions, and can also participate in the frequency regulation of passive/weak AC microgrid to ensure that the system frequency does not exceed the safety threshold.
直流侧串联、交流侧并联的级联变换器拓扑是目前中低电压、小容量场景下直流系统变换器较好的选择。针对级联变换器直流侧电容电压平衡问题,提出了一种具有自电压平衡功能的级联变换器控制策略,包括自电压平衡的电压/频率控制和自电压平衡的最优降压控制,为无源/弱交流微电网供电。与传统的电压平衡策略相比,该策略可以参与系统的频率调节,并且最优下垂控制还可以避免子模块之间的数据通信。仿真结果表明,该策略能够实现稳态和各种故障条件下的电压共享功能,并能参与无源/弱交流微电网的频率调节,保证系统频率不超过安全阈值。
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引用次数: 0
期刊
2022 IEEE 5th International Conference on Electronics Technology (ICET)
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