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Circuits, Systems, and Signal Processing OnlineFirst articles

FoNet: Focused Network for Single Image Deraining

The task of single-image deraining focuses on generating clear images from rainy ones, a crucial challenge with wide-ranging applications. Although Transformer models have achieved notable success in this field, their quadratic computational …

Available Residual Capacity Prediction Model for the Life Cycle of Storage Battery Considering Multiple Disturbances

Conventional methods for estimating the residual capacity of lead-acid batteries often overlook the variations in available capacity across different environments and usage scenarios throughout the life cycle of batteries, as well as the natural …

Truly Mixed-Mode Universal Filter Capable of Operation in MISO and SIMO Configurations with Quadrature Oscillator as an Application

A versatile mixed-mode universal filter with electronic tunability is proposed in this research. The filter employs a modified differential voltage current conveyor transconductance amplifier (M-DVCCTA) as the active block. Without modifying the …

Two-Stage Sparsely Optimized Robust Differential Beamforming with High Directivity Factors

Differential beamforming (DBF) has attracted much attention due to its ability to achieve high directivity factors (DF) with limited array apertures. However, this beamforming technique remains highly sensitive to sensor self-noise and array …

Design and Implementation of Two-Channel Linear Phase Filter Bank Using New Hybrid Sparse Particle Swarm Optimization Algorithm

This article suggests an improved technique for the design of a two-channel linear phase filter bank also known as quadrature mirror filter (QMF) bank. In the present work, a new hybrid sparse particle swarm optimization (HSPSO) algorithm to …

Optimizing Tactile Feedback Devices with Fixed-Point Computation on FPGA

This article targets the implementation of a bilateral control algorithm for haptic devices on FPGA platforms, using fixed-point arithmetic (FxP-F) to overcome latency and processing efficiency challenges. The results show significant improvements …

Q-Learning Based Detector Design for State Estimation Under Non-gaussian Noises

This paper addresses the problem of detecting false data injection attacks (FDI) for state estimation with non-Gaussian noises. During the estimation process, potential attacks and non-Gaussian noise can lead to the non-Gaussian property of the …

Single Channel Speech Enhancement using a Complex Dual-Path Multi Axial Transformer with Frequency Prompt

Single channel speech enhancement has been extensively researched by employing real-valued neural networks in time–frequency (T/F) domain. Although the input and target in the T/F domain are naturally complex, a full complex model can effectively …

Recognizing Emotions from Physiological Data in a Eeg Signals Using a Novel Deep Learning Technique

Emotions have a significant effect on daily living and they are linked to physical as well as mental wellness. People use words, noises, body language and facial expressions to convey their feelings. Real feelings, however, are sometimes difficult …

HSNet: A Novel Edge-Preserving Hierarchical Separable Network for Video Shadow Detection

Video Shadow Detection (VSD) is an emerging research direction that holds significant importance in surveillance video analysis for multiple industrial applications. Recently, several research efforts in the field of VSD have focused on improving …

Dynamic Event-Triggered Exponential Dissipative Control of Switched T-S Fuzzy Systems with Actuator Failures and DoS Attacks

This paper discusses the (Q,S,R)-exponentially dissipative control problem for the discrete-time switched Takagi-Sugeno fuzzy systems with actuator failures and denial-of-service (DoS) attacks. In order to save communication resources, the dynamic …

Lipschitz Gain Matrix Selection Enhancement in Model Predictive Control of Discrete Nonlinear Lipschitz Models

The idea of model predictive control of nonlinear Lipschitz models based on discrete model has been studied by several studies. The mainstream of these research need solving a sum of squares (SOS) problem to find the best region of dominance (RoD) …

Practical Exponential Stability of Switched Generalized Homogeneous Positive Nonlinear Systems with Bounded Disturbances

The practical exponential stability of switched generalized homogeneous positive nonlinear systems with bounded disturbances is investigated in this paper. Different from the existing results, the concept of generalized homogeneity is employed to …

Discrete-Time Sliding Mode Control Based on Improved Decoupled Disturbance Compensator

The sliding mode control for discrete-time systems is studied in this paper. By incorporating past information of system states and control inputs, an improved decoupled disturbance compensator (DDC) is constructed, based on which, both linear …

A Novel Criterion for Realizing H∞ Overflow Oscillation-Free Digital Filters with Saturation and External Interference

  • Short Paper

Fixed-point digital filters (DFs) implemented on finite wordlength processors (such as microcontrollers, Field-programmable Gate Arrays, and digital signal processing kits) often experience nonlinearities due to quantization and overflow, which …

A Sequential High-Frequency Switched-Capacitor Neuro-Stimulation Technique with 77% Power Efficiency

This paper proposes a new energy-efficient technique for high-frequency switched-capacitor stimulation systems. The proposed sequential high-frequency switched-capacitor (S-HFSC) structure employs a two-step charge transfer technique to reduce the …

TFF-Codec: A High Fidelity End-to-End Neural Audio Codec

Audio Coding has made significant progress with the development of deep neural networks. Recently, neural speech codecs based on vector quantized variational autoencoder have become increasingly popular among researchers due to their elegant …

Adaptive Gbest-Guided Atom Search Optimization for Designing Stable Digital IIR Filters

The problem of infinite impulse response (IIR) system identification is a key and demanding issue in signal processing and control systems, which requires appropriate system dynamics describing a model that also ensures the system’s stability and …

Model Dominance Index Assisted Enhanced Generalized Pole Clustering Technique for Order Reduction and Application to PID Controller Design

This paper proposes an improved generalized pole clustering technique for model order reduction of higher-order LTI systems. The method has been modified from the traditional generalized pole clustering by incorporating a quantitative measure of …

Estimation of Time Varying Boundaries and Filtering of Empirical Wavelet Transform with Application to Adaptive Nonstationary Signal Decomposition

Empirical wavelet transform (EWT) is an adaptive signal decomposition method that employs an adaptive filter bank to decompose an input signal into a set of narrow band modes. However, the boundaries in the existing EWT and its variants are found …