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Browsing by Author "Sun, Yichuang"
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A 0.1–5.0 GHz flexible SDR receiver with digitally assisted calibration in 65 nm CMOS
Zhang, Xinwang; Chen, Zipeng; Gao, Yanqiang; Xu, Yang; Liu, Bingqiao; Yu, Qian; Sun, Yichuang; Wang, Zhihua; Chi, Baoyong (2018-02-01)A 0.1–5.0 GHz flexible software-defined radio (SDR) receiver with digitally assisted calibration is presented, employing a zero-IF/low-IF reconfigurable architecture for both wideband and narrowband applications. The ... -
A 10-b Fourth-Order Quadrature Bandpass Continuous-Time ΣΔ Modulator With 33-MHz Bandwidth for a Dual-Channel GNSS Receiver
Zhang, Junfeng; Xu, Yang; Zhang, Zehong; Sun, Yichuang; Wang, Zhihua; Chi, Baoyong (2017-04-01)A fourth-order quadrature bandpass continuous-time sigma-delta modulator for a dual-channel global navigation satellite system (GNSS) receiver is presented. With a bandwidth (BW) of 33 MHz, the modulator is able to digitalize ... -
A 14-mW PLL-less receiver in 0.18-μm CMOS for Chinese electronic toll collection standard
He, Xiaofeng; Zhu, Xi; Duan, Lian; Sun, Yichuang; Ma, Chengyan (2014-10-01)The design of a 14-mW receiver without phase-locked loop for the Chinese electronic toll collection (ETC) system in a standard 0.18-μm CMOS process is presented in this brief. Since the previously published work was mainly ... -
A 39-GHz Doherty-Like Power Amplifier with 22-dBm Output Power and 21% Power-Added Efficiency at 6-dB Power Back-Off
Chen, Lang; Chen, Lisheng; Sun, Depeng; Sun, Yichuang; Pan, Yulin; Zhu, Xi (2024-01-08)The design of a Doherty-like power amplifier for millimetre-wave (mm-wave) applications is presented in this work. The designed power amplifier employs a novel symmetrical load-modulated balanced amplifier (S-LMBA) ... -
A 40-GHz Load Modulated Balanced Power Amplifier using Unequal Power Splitter and Phase Compensation Network in 45-nm SOI CMOS
Chen, Lang; Chen, Lisheng; Ge, Zeyu; Sun, Yichuang; Zhu, Xi (2023-06-08)In this work, a ten-way power-combined poweramplifier is designed using a load modulated balanced amplifier(LMBA)-based architecture. To provide the required magnitudeand phase controls between the main and control-signal ... -
A 90-GHz Asymmetrical Single-Pole Double-Throw Switch with >19.5-dBm 1-dB Compression Point in Transmission Mode Using 55-nm Bulk CMOS Technology
Chen, Lisheng; Chen, Lang; Ge, Zeyu; Sun, Yichuang; Hamilton, Tara; Zhu, Xi (2021-08-25)The millimeter-wave (mm-wave) single-pole double-throw (SPDT) switch designed in bulk CMOS technology has limited power-handling capability in terms of 1-dB compression point (P1dB) inherently. This is mainly due to the ... -
Adaptive Biomimetic Neuronal Circuit System Based on Myelin Sheath Function
Li, Xiaosong; Sun, Jingru; Ma, Wenjing; Sun, Yichuang; Wang, Chunhua; Zhang, Jiliang (2024-01-25)Brain-inspired neuromorphic computing architectures are receiving significant attention in the consumer electronics field owing to their low power consumption, high computational capacity, and strong adaptability, where ... -
Algebraic carrier frequency offset estimator for ASTC-MIMO-OFDM systems over correlated frequency selective channel
Bannour, A.; Ammari, M.L.; Bouallegue, R.; Sun, Yichuang (Institute of Electrical and Electronics Engineers (IEEE), 2011-01-01)This work presents a new Algebraic Carrier Frequency Offset (CFO) estimation technique for multi-input multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems employing Algebraic Space Time Coding ... -
Automated Visual Defect Detection for Flat Steel Surface: A Survey
Luo, Qiwu; Fang, Xiaoxin; Liu, Li; Yang, Chunhua; Sun, Yichuang (2020-01-01)Automated computer-vision-based defect detection has received much attention with the increasing surface quality assurance demands for the industrial manufacturing of flat steels. This article attempts to present a ... -
Average transmit power of adaptive ZF very large multi-user and multi-antenna systems
Yue, Dian Wu; Sun, Yichuang (2015-04-01)In this paper, we investigate adaptive zero-forcing uplink transmission for very large multi-user multi-antenna systems in Rayleigh fading environments. We assume that the number of antennas at the base station (denoted ... -
Brain-like Initial-boosted Hyperchaos and Application in Biomedical Image Encryption
Lin, Hairong; Wang, Chunhua; Cui, Li; Sun, Yichuang; Xu, Cong; Yu, Fei (2022-03-03)Neural networks have been widely and deeply studied in the field of computational neurodynamics. However, coupled neural networks and their brain-like chaotic dynamics have not been noticed yet. This paper focuses on the ... -
Bursting oscillations and bifurcation mechanism in a fully integrated piecewise-smooth chaotic system
Ma, Minglin; Fang, Yingjun; Li, Zhijun; Sun, Yichuang; Wang, Mengjiao (2021-05-29)This paper aims to show and investigate bursting oscillator and bifurcation phenomena in a piecewise-smooth memristor-based Shimizu-Morioka (SM) system. To make the circuit low power consumption and portable in practice, ... -
Cluster Output Synchronization for Memristive Neural Networks
Zhou, Chao; Wang, Chunhua; Sun, Yichuang; Yao, Wei; Lin, Hairong (2022-04-01)Herein, cluster output synchronization for memristive neural networks (MNNs) is investigated using two different control schemes. Existing synchronization models for MNNs focus on the behavior of a single neuron node in ... -
Co-Efficient Vector Based Differential Distributed Quasi-Orthogonal Space Time Frequency Coding
Nwanekezie, Nnamdi; Simpson, Oluyomi; Owojaiye, Gbenga; Sun, Yichuang (2023-08-30)Distributed space time frequency coding (DSTFC) schemes address problems of performance degradation encountered by cooperative broadband networks operating in highly mobile environments. Channel state information (CSI) ... -
Compact Millimeter-Wave Bandpass Filters Using Quasi-Lumped Elements in 0.13-um (Bi)-CMOS Technology for 5G Wireless Systems
Bautista, Meriam Gay; Zhu, He; Zhu, Xi; Yang, Yang; Sun, Yichuang; Dutkiewicz, Eryk (2019-02-08)A design methodology for a compact millimeter-wave on-chip bandpass filter (BPF) is presented in this paper. Unlike the previously published works in the literature, the presented method is based on quasi-lumped elements, ... -
Current-mode high-frequency wavelet filter based on leap-frog multiple-loop feedback structure
Zhao, Wenshan; Sun, Yichuang (2013-12-01)A method is proposed to realize high-frequency wavelet transform in analogue filter by employing Gm-C circuits and current-mode leap-frog multiple loop feedback structure in this paper. Also, to enhance the performance, ... -
Demand Response Strategy Based on Reinforcement Learning and Fuzzy Reasoning for Home Energy Management
Alfaverh, Fayiz; Denai, Mouloud; Sun, Yichuang (2020-02-17)As energy demand continues to increase, demand response (DR) programs in the electricity distribution grid are gaining momentum and their adoption is set to grow gradually over the years ahead. Demand response schemes seek ... -
Design and Implementation of a Re-configurable Versatile Direct Digital Synthesis based Pulse Generator
Sharma, Ashok; Sun, Yichuang; Simpson, Oluyomi (2021-07-02)Direct digital synthesis (DDS) technology has replaced many traditional analogue circuit functions. The frequency, amplitude and phase of a waveform generated using DDS can be precisely controlled. It is possible to achieve ... -
Design and Implementation of a Reconfigurable Wideband Radio Frequency Spectrum Analyzer with Image Rejection in the Digital Domain
Sharma, Ashok; Sun, Yichuang; Simpson, Oluyomi; Lauder, David (2021-02-19)Most existing radio frequency (RF) spectrum analyzers use conventional superheterodyne architecture to remove images associated with the down conversion of RF input frequency to some intermediate frequency (IF) for further ... -
Design for testability of high-order OTA-C filters
Hasan, Masood ul; Zhu, Yanqing; Sun, Yichuang (2016-10-04)A study of oscillation-based test for high-order Operational Transconductance Amplifier-C (OTA-C) filters is presented. The method is based on partition of a high-order filter into second-order filter functions. The opening ...