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IEEE Transactions on Circuits and Systems II: Express Briefs最新文献

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Consensus Estimation of Flow Field via Underwater Sensor Networks in Inhomogeneous Medium 基于水下传感器网络的非均匀介质流场一致性估计
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-02-10 DOI: 10.1109/TCSII.2025.3540719
Jianhang Zhou;Jing Yan;Xian Yang;Xiaoyuan Luo;Cailian Chen;Xinping Guan
{"title":"Consensus Estimation of Flow Field via Underwater Sensor Networks in Inhomogeneous Medium","authors":"Jianhang Zhou;Jing Yan;Xian Yang;Xiaoyuan Luo;Cailian Chen;Xinping Guan","doi":"10.1109/TCSII.2025.3540719","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3540719","url":null,"abstract":"This brief studies the flow field estimation issue with underwater sensor networks (USNs) in inhomogeneous medium. We first adopt the ray tracing model to compensate the range bias caused by straight-line propagation, through which a triangle-division-based transmission protocol is designed to collect the travel time differences between any two sensor nodes. With the collected time differences, a flow field estimation problem with acoustic tomography is constructed for USNs. To solve the above problem, a consensus-based unscented Kalman filter (UKF) is designed to minimize the sum of all local measurement errors of sensor nodes. Of note, the triangle-division-based transmission protocol in this brief can avoid the bias under the stratification effect, and meanwhile, the consensus-based estimator can improve the estimation accuracy. Finally, the effectiveness of our solution is verified by simulation and experimental results.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 4","pages":"633-637"},"PeriodicalIF":4.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An All-Digital and Wide-Range De-Skew Circuit With Dual-Edge Correction Scheme for Source Synchronous Interfaces 源同步接口全数字宽范围去斜双边校正电路
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-02-07 DOI: 10.1109/TCSII.2025.3540008
Yongshan Wang;Fei Liu;Fangyuan Jin;Jian Huo
{"title":"An All-Digital and Wide-Range De-Skew Circuit With Dual-Edge Correction Scheme for Source Synchronous Interfaces","authors":"Yongshan Wang;Fei Liu;Fangyuan Jin;Jian Huo","doi":"10.1109/TCSII.2025.3540008","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3540008","url":null,"abstract":"This brief presents an all-digital and wide-range de-skew circuit with dual-edge correction scheme for source synchronous interfaces to achieve precise synchronization between data and clock. The proposed scheme not only aligns the rising edges of data and clock signals, but also compensates for the falling edge position offsets of multi-bit parallel data, which can address the narrowing of data valid window caused by skew and pulse-width distortion. A two-stage digitally-controlled delay line is utilized to achieve wide-range de-skew. Besides, a half-cycle delay line method is adopted for clock duty-cycle correction, while generating a 90-degree phase shift to optimize the sampling margin. The test chip is fabricated in 180nm CMOS process, and each data path with the proposed de-skew circuit occupies 0.0453mm2. The chip testing results show that the timing skew between data and clock is reduced to within 28ps, and the pulse-width correction error is less than 1.7% when the duty cycle of the input clock pattern data signal ranges from 28% to 65%.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 4","pages":"534-538"},"PeriodicalIF":4.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An All-Digital Spread-Spectrum Clock Generator With Feedforward Gain Calibration for LPWAN Chirp Transmission System 一种用于LPWAN啁啾传输系统的前馈增益校准全数字扩频时钟发生器
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-02-07 DOI: 10.1109/TCSII.2025.3539721
Yiyun Mao;Haoyuan Gao;Jin Shao;Xinyi Lin;Peifang Wu;Ping Lu;Hao Xu;Na Yan
{"title":"An All-Digital Spread-Spectrum Clock Generator With Feedforward Gain Calibration for LPWAN Chirp Transmission System","authors":"Yiyun Mao;Haoyuan Gao;Jin Shao;Xinyi Lin;Peifang Wu;Ping Lu;Hao Xu;Na Yan","doi":"10.1109/TCSII.2025.3539721","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3539721","url":null,"abstract":"In this brief, an all-digital spread-spectrum clock generator (AD-SSCG) is presented for low-power wide-area network (LPWAN) chirp spread spectrum application. Facing the periodic frequency hopping in chirp modulation, a gain calibration is employed in feedforward path to avoid two-point modulation (TPM) loop-gain mismatches and phase error, ensuring a precise frequency tracking. Employed with the combination of a constant slope digital-to-time converter (CS-DTC) and an multi-bit mid-rise TDC, the embedded digital loop can provide a linear sawtooth chirp modulation while keeping a good phase noise (PN) performance. Fabricated in a 40nm CMOS process, the AD-SSCG achieves a random jitter of 508fs<inline-formula> <tex-math>$_{rms}$ </tex-math></inline-formula>, with measured PN of −111.6dBc/Hz@1MHz. The EMI reduction achieves 39.1dB (4MHz + 2000ppm depth). The prototype chip consumes 2.45mW under 1.1V supply voltage.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 4","pages":"529-533"},"PeriodicalIF":4.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Power Self-Sufficient Managed Energy Harvester With Dual-Source Synergistic Cold-Start Capability 一种具有双源协同冷启动能力的电力自给管理能量采集器
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-02-05 DOI: 10.1109/TCSII.2025.3539007
Xiudeng Wang;Jiakai Chen;Shulin Gao;Libo Qian;Ge Shi;Yinshui Xia;Huakang Xia;Zhangming Zhu
{"title":"A Power Self-Sufficient Managed Energy Harvester With Dual-Source Synergistic Cold-Start Capability","authors":"Xiudeng Wang;Jiakai Chen;Shulin Gao;Libo Qian;Ge Shi;Yinshui Xia;Huakang Xia;Zhangming Zhu","doi":"10.1109/TCSII.2025.3539007","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3539007","url":null,"abstract":"This brief presents a power self-sufficient managed dual-source energy harvester that prioritizes the harvested energy for self-consumption and then transfers the surplus energy to the load or storage, thereby avoiding paying more than harvesting when the environmental energy is weak. The bipolar stacking structure employed enables the simultaneous harvesting of both energy sources through time-division multiplexing in DCM or synchronized extraction in CCM. Additionally, this structure allows the dual sources to share a single cold starter, while also facilitating low-voltage startup. The proposed harvester, fabricated using a <inline-formula> <tex-math>$0.18~mu $ </tex-math></inline-formula>m CMOS process, achieves end-to-end peak efficiencies of 84.3% and 82.5% for photovoltaic and thermoelectric energy harvesting, respectively, while achieving a dual-source synergistic cold-start voltage as low as 80 mV.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 4","pages":"628-632"},"PeriodicalIF":4.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sampled Wiener Time Delay System Identification 采样维纳时滞系统辨识
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-02-03 DOI: 10.1109/TCSII.2025.3538015
Saurabh Pandey
{"title":"Sampled Wiener Time Delay System Identification","authors":"Saurabh Pandey","doi":"10.1109/TCSII.2025.3538015","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3538015","url":null,"abstract":"This brief presents an iterative identification method for a sampled Wiener output error (OE) model with an integer time delay dynamics against stochastic noise. Considering the output nonlinearity as an unknown function to be estimated by using a kernel regression, two iterative least squares (ILS) algorithms are established for evaluating the discrete-time linear model parameters and the coefficients of the nonlinear function simultaneously. For consistent estimation, a noise-free output response is predicted through an auxiliary model method. Meanwhile, two crucial parameters, namely the time delay and a kernel bandwidth, are determined by using a two-dimensional linear search strategy. In addition, the rate of convergence of parameter estimation is enhanced by introducing an adaptive set of forgetting factors. Using the statistical theory of stochastic processes, the asymptotic convergence is analyzed through a mathematical proof. Simulation and experimental results are included to demonstrate the efficacy and advantage of the proposed algorithm.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 4","pages":"573-577"},"PeriodicalIF":4.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A 400-Mbps 1.05 pJ/Bit IR-UWB Transmitter for High-Density Neural Recording Systems 用于高密度神经记录系统的400-Mbps 1.05 pJ/Bit IR-UWB发射机
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-01-31 DOI: 10.1109/TCSII.2025.3537617
Hadi Hayati;Saeed Ghaneei Aarani;Mousa Karimi;Razieh Eskandari;Mohamad Sawan;Gabriel Gagnon-Turcotte;Benoit Gosselin
{"title":"A 400-Mbps 1.05 pJ/Bit IR-UWB Transmitter for High-Density Neural Recording Systems","authors":"Hadi Hayati;Saeed Ghaneei Aarani;Mousa Karimi;Razieh Eskandari;Mohamad Sawan;Gabriel Gagnon-Turcotte;Benoit Gosselin","doi":"10.1109/TCSII.2025.3537617","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3537617","url":null,"abstract":"This brief presents an impulse radio ultra-wideband (IR-UWB) transmitter (TX) designed for miniature multi-channel neural recording platforms in freely moving laboratory animals. We introduce a 5-bit data-to-time modulation technique utilizing a 5-cell capacitive array. This approach minimizes the data rate’s dependency on pulse repetition frequency, while significantly reducing power dissipation and simplifying the TX’s architecture. Measurement results with the TX fabricated in TSMC 65-nm standard CMOS technology show that the proposed circuit provides a linear time change in the pulsewidth with a time step of 84 ps in average for every least significant bit in the input. Furthermore, the entire circuit consumes only <inline-formula> <tex-math>$422~{mu }$ </tex-math></inline-formula>W from a 0.65-V supply. The proposed TX achieves a significantly low energy consumption of 1.05 pJ/bit at 400 Mbps in a 0.5-m transmission range. The fabricated circuit occupies 0.255 mm2 of die area including pads.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 3","pages":"484-488"},"PeriodicalIF":4.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low-Cost Yet Effective Trojan Mitigation Techniques for Approximate Systems 基于近似系统的低成本有效的木马缓解技术
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-01-31 DOI: 10.1109/TCSII.2025.3537499
Zohaib Tariq;Haroon Waris;Rehan Ahmed;Yuqin Dou;Weiqiang Liu;Muhammad Imran
{"title":"Low-Cost Yet Effective Trojan Mitigation Techniques for Approximate Systems","authors":"Zohaib Tariq;Haroon Waris;Rehan Ahmed;Yuqin Dou;Weiqiang Liu;Muhammad Imran","doi":"10.1109/TCSII.2025.3537499","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3537499","url":null,"abstract":"Approximate Computing (AC) is a promising computing paradigm that provides efficiency and speed while maintaining acceptable accuracy in error-tolerant applications. However, most of the existing AC designs are prone to Hardware Trojan (HT) attacks. Moreover, the existing HT mitigation techniques have been designed for exact systems and due to the architectural differences in the approximate systems, these conventional mitigation techniques have limited efficacy when used in the context of AC. Therefore, this brief presents two novel methods, named Partial Comparison (PC) and Hybrid Comparison (HC), that effectively mitigate HTs in approximate systems while achieving a 30% and 55% improvement in the area and the power efficiency, compared to the existing state-of-the-art technique. PC focuses on LSBs while HC considers both LSBs and MSBs for HT masking. The effectiveness of proposed techniques is validated through a practical case study of image processing; three IPs with different HTs are successfully masked with a PSNR and SSIM of 33dB and 0.92 respectively. In conclusion, this research provides practical solution to enhance security and reliability of approximate systems with optimal performance benefits.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 4","pages":"603-607"},"PeriodicalIF":4.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IEEE Transactions on Circuits and Systems--II: Express Briefs Publication Information IEEE电路与系统汇刊——II：快报简报出版信息
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-01-30 DOI: 10.1109/TCSII.2025.3529370
{"title":"IEEE Transactions on Circuits and Systems--II: Express Briefs Publication Information","authors":"","doi":"10.1109/TCSII.2025.3529370","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3529370","url":null,"abstract":"","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 2","pages":"C2-C2"},"PeriodicalIF":4.0,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10858350","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IEEE Circuits and Systems Society Information IEEE电路与系统学会信息
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-01-30 DOI: 10.1109/TCSII.2025.3529372
{"title":"IEEE Circuits and Systems Society Information","authors":"","doi":"10.1109/TCSII.2025.3529372","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3529372","url":null,"abstract":"","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 2","pages":"C3-C3"},"PeriodicalIF":4.0,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10858347","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Security Control for Networked Nonhomogeneous Stochastic Switching Power Systems With DoS Attacks 具有DoS攻击的网络非齐次随机开关电源系统安全控制
IF 4 2区 工程技术
IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-01-28 DOI: 10.1109/TCSII.2025.3535574
Mingliang Ding;Zhenhao Li;Wenhai Qi;Ju H. Park
{"title":"Security Control for Networked Nonhomogeneous Stochastic Switching Power Systems With DoS Attacks","authors":"Mingliang Ding;Zhenhao Li;Wenhai Qi;Ju H. Park","doi":"10.1109/TCSII.2025.3535574","DOIUrl":"https://doi.org/10.1109/TCSII.2025.3535574","url":null,"abstract":"The security control is studied for discrete nonhomogeneous semi-Markov switching power systems under network attacks. In view of time-varying transition probability, a nonhomogeneous semi-Markov chain is introduced to accurately model transient faults of power lines and dynamic switching of circuit breakers. Due to the random nature of denial-of-service (DoS) attacks, Bernoulli process is adopted to characterize the attacks behavior. Based on the semi-Markov kernel and Lyapunov function depending on the current system mode and dwell time, sufficient conditions for the existence of the controller are derived to ensure the mean-square stability of the closed-loop system. Finally, the effectiveness and practicability of the proposed control strategy are verified by a numerical case.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 3","pages":"519-523"},"PeriodicalIF":4.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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