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241 articles for “signal”
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From Waves to Wires: The Story of AnalogSignals
Abstract: Analog signals form the foundation of how humans originally captured, communicated, and processed information in electronic devices. Characterized by their continuous fluctuation in amplitude, frequency, and phase, these signals readily replicate real-world phenomena such as sound, light, and temperature. This article covers the history of analog signals from their roots in natural waveforms to their implementation in electrical circuits and communication systems. It addresses essential topics such waveform representation, signal …
Published in International Journal of Digital Communication and Analog Signals · Vol. 12, Issue 1, 2026 · pp. 44–49 Read article
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DESIGN OF TRAFFIC SIGNAL CONTROL SYSTEM AT ORLU JUNCTION, IHIALA, ANAMBRA STATE, NIGERIA
Abstract: The vast increase in population results in number of vehicular movement which contributes to volume of traffic at road intersections. This traffic jam is much during festive periods, causing delay which has negative impact to the economy. No one can easily predict the time of journey arrival due to gridlock at intersection on highways. This inefficient traffic movement is caused by absence of traffic control systems. Hence, this study had …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 8, Issue 2, 2022 · pp. 38–49 Read article
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RESEARCH AND IMPLEMENTATION OF QAM SIGNAL USING TEXAS INSTRUMENTS (TMS320C6713)
Abstract: During the last two decades the growth of digital communication and modulation techniques are widely considered in real time application in order to transfer reliable information with high data rate. Since digital modulation is resistible to noise people show interest in adopting it. Though there is various modulation techniques QAM is one of the most commonly used modulation. The QAM has higher efficiency power which results its application in mobile …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 2, 2016 · pp. 26–32 Read article
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A Comprehensive Approach to Design and Implement a Fast FIR Filter for Signal Processing Applications
Abstract: Signal processing, communications, and computers all rely heavily on the field of digital signal processing (DSP). In DSP important application is Finite impulse response (FIR) filter. The initial objective of this inquiry is to present an approach for an improved framework of a FIR digital filter through the programme level to the hardware level. It influences the decision on design approaches, architecture, and the efficient use of hardware. The window …
Published in International Journal of Microwave Engineering and Technology · Vol. 9, Issue 1, 2023 · pp. 1–19 Read article
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Modern Technology Analog Circuits:Applications and Challenges - An Exploration
Abstract: An analog circuit is an electronic system that processes signals that vary continuously. The signals reflect physical quantities, such as sound, temperature or light, as proportionate levels of voltage or current. However, they are not digital circuits. They operate on a continuous spectrum. They use resistors, capacitors, and transistors, and can amplify, filter, or otherwise alter signals. Analog circuits are still a vital feature of electronic systems today, allowing continuous-time …
Published in International Journal of Analog Integrated Circuits · Vol. 12, Issue 1, 2026 · pp. 14–23 Read article
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Steps involved in EEG Signal Analysis for Arm Movement
Abstract: This study delves into the intricacies of analyzing EEG signals associated with arm movement motor imagery. We explore established techniques across three key stages: data pre-processing, feature extraction, and classification for movement identification. By critically evaluating the strengths and weaknesses of each approach, we optimize the analysis pipeline for robust decoding of arm movement intent. This work empowers researchers and practitioners to transform raw EEG data into actionable insights, opening …
Published in International Journal of Microwave Engineering and Technology · Vol. 10, Issue 1, 2024 · pp. 43–55 Read article
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Two Wheeler Adjustment Factor to Estimate Queue Length at Signalized Intersection under Heterogeneous Traffic Conditions
Abstract: The two-wheeler adjustment factor derived in the present study to predict queue length at approaches of signalized intersections in mixed traffic conditions. The statistical distribution investigation carried out to understand the queuing behavior by using observed queue length obtained from the field. Field data was collected at Suchitra and KBR park intersections in Hyderabad City by using video graphic technic. Highway Capacity Manual (2010) adopted for estimating queue length with …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 7, Issue 2, 2021 · pp. 15–21 Read article
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Spectral Analysis of Heart Rate Variability Signals using Stockwell-Transform
Abstract: This paper introduces the use of Stockwell transform (ST) for spectral analysis of heart rate variability (HRV) signals in time-frequency domain. The ST is depicted numerically and compared with well-liked method of wavelet transform known as continuous Morlet wavelet transform (CMWT). The results of this study show that the normalized mean power and total normalized power in VLF (0.004–0.04 Hz), LF (0.04–0.15 Hz) and HF (0.15–0.4 Hz) were improved compared …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 2, 2015 · pp. 9–19 Read article
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Missile Tracking and Detection Using SAR and MIMO Radar Signal Processing
Abstract: This paper presents a missile tracking and detection using SAR and MIMO Radar signal processing. SAR is a technique for computing high-resolution radar returns that exceed the traditional resolution limits imposed by the physical size, or aperture, of an antenna. By using Kaiser Window, the trade off exists between the main lobe width and the side lobe amplitude. Kalman filter is used to minimizing the maximum error between the frequency …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 1, Issue 1, 2016 · pp. 39–47 Read article
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Analysis of EEG Signal for Brain Computer Interface
Abstract: Brain-computer interface (BCI) frameworks causes a subject to issue commands to an electronic device just by methods for brain activity. EEG has wide applications in the brain-computer interface (BCI) systems. Sadly, the spatial resolution of EEG is very low, because of the volume conduction. While measuring signals related to motor movements various artefacts also get added. We have studied pre-processing techniques and classification techniques which improve performance. While there are …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 6, Issue 2, 2020 · pp. 6–11 Read article
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A Computer Program for Small Signal HEMT or GaAsFET Model in Fiber Optic Receiver Circuit
Abstract: A fully automated program to determine the GaAsFET/HEMT small signal models for use in optical communication front end amplifier circuit is given. The program requires only initial values of parameters which are commonly available in literature determined by experimental procedures and two port analysis theory using analytical formulae. The program was tested by giving starting values within minimum and maximum ranges of parameters obtained by available manufacturer’s data and theoretical …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 1–22 Read article
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Modified E and W Shape Antenna Designs to Boost Wireless Signals
Abstract: Research article presents E-shaped antenna in wireless communication. GA Algorithmic procedure has been implemented with enhancement. The Enhanced GA procedure increases bandwidth. Method of Movement (MOM) has been employed on 1.8–2.6 GHz for carrying out optimization. Fuzzy approach has been taken up in recombination of next generation antenna development. GA procedure assist in enhancing design of E shape antenna. A miniature model antenna for frequencies ranging from 1.8 to 2.37 …
Published in International Journal of Microwave Engineering and Technology · Vol. 4, Issue 1, 2018 · pp. 42–47 Read article
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Classification of Fetal ECG Arrhythmia by Using Advance Hybrid Deep Learning Technique CNN-LSTM
Abstract: Fetal heart abnormalities, particularly fetal heart arrhythmias, are becoming an increasing concern in maternal healthcare. Early and accurate detection remains challenging due to limitations in conventional diagnostic techniques and inadequate signal processing methods. Existing studies have applied various machine learning and deep learning approaches; however, capturing the complex characteristics of fetal electrocardiogram (ECG) signals remains a significant gap. This study proposes an advanced deep learning-based approach for detecting fetal heart …
Published in International Journal of Cardiovascular Nursing · Vol. 12, Issue 1, 2026 · pp. 27–36 Read article
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Applications of Trans-Conductance Amplifier in CMOS
Abstract: Abstract: An output voltage proportionate to an input current is produced by the operating trans conductance amplifier. In this regard, it is equivalent to the fundamental purpose of the solid-state devices that make it possible. The operational transconductance amplifier (OTA) is a very adaptable and essential part of contemporary analog and mixed-signal electronic circuits because it produces an output voltage proportionate to an input current. With the extra advantage of …
Published in International Journal of Analog Integrated Circuits · Vol. 11, Issue 2, 2025 · pp. 1–6 Read article
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Modeling and Simulation of Adaptive Traffic Control Systems: Electrical Engineering Techniques for Urban Applications
Abstract: Traffic congestion is a ubiquitous challenge in urban areas, necessitating innovative solutions to improve transportation efficiency and alleviate gridlock. Traditional traffic signal control methods often prove inadequate in dynamically adapting to fluctuating traffic conditions, leading to increased travel times, fuel consumption, and emissions. In response, adaptive traffic control systems have emerged as a promising approach to mitigate congestion and enhance traffic flow in urban environments. These systems use real-time data …
Published in International Journal of Electrical Power System and Technology · Vol. 10, Issue 2, 2024 · pp. 1–8 Read article
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Development of an ATmega328-Based Oscilloscope for Quick Field Measurements
Abstract: Abstract: This paper presents an ATmega328 microcontroller-based oscilloscope developed with the ATmega328 microcontroller, designed for efficient signal analysis in a compact format. Featuring a 128x64 OLED display, multiple input channels, and integrated ADC for accurate signal sampling, the oscilloscope allows users to measure frequency, amplitude, and period effectively. Oscilloscopes are crucial for troubleshooting, diagnostics, and system design because they enable researchers and engineers to examine the properties of electrical systems, …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 10, Issue 2, 2024 Read article
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Nanostructured Materials for Developing Biocompatible and Implantable Biosensors: Challenges and Strategies
Abstract: Nanostructured materials have emerged as promising candidates for developing high-performance biosensors due to their unique properties, such as high surface-to-volume ratio, enhanced catalytic activity, and improved electrical and optical characteristics. However, the integration of these materials into biocompatible and implantable biosensors presents several challenges, including biocompatibility concerns, biofouling, long-term stability, and efficient signal transduction. This chapter offers a thorough review of the difficulties and solutions related to creating biocompatible and …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 10, Issue 1, 2024 Read article
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Real-Time Traffic Management System Utilizing Machine Learning Techniques
Abstract: AbstractThe rapid increase in the number of vehicles on roads has created significant challenges forconventional traffic management systems, which struggle to efficiently regulate traffic flow undervarying conditions. Traditional traffic signals operate on fixed timing cycles, failing to adapt tofluctuating vehicle densities across different lanes. This inefficiency results in unnecessary delays,increased congestion, longer travel times, and excessive fuel consumption. Additionally, fixed-timingsignals do not account for dynamic traffic patterns, leading to bottlenecks …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 11, Issue 1, 2025 · pp. 24–31 Read article
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Targeted Nanotherapy and Advanced Biosensing: A Novel Approach to Preventing and Treating Fibrodysplasia Ossificans Progressiva
Abstract: Fibrodysplasia ossificans progressiva (FOP) is an exceptionally rare and debilitating genetic disorder marked by the gradual transformation of soft tissues into bone, severely impairing movement and reducing lifespan. This review delves into the potential of cutting-edge nanotherapy and advanced biosensing technologies as novel strategies for both preventing and treating FOP. Nanotechnology could help make targeted drug delivery systems and real-time monitoring tools that can precisely target the mutant ACVR1 gene, …
Published in International journal of Nanobiotechnology · Vol. 10, Issue 2, 2024 · pp. 11–18 Read article
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OFDM Systems with Reduced PAPR
Abstract: To reduce peak to average power radio (PAPR) of orthogonal frequency division multiplexing (OFDM) system, flexible and distortion less methods like SLM (Selected mapping) and PTS (Partial transmit sequences) are very useful. The variation of OFDM signal amplitudes is very wide with high PAPR. Huge PAPR necessitates a DAC with sufficient dynamic range to handle the OFDM signals' large peaks. PAPR reduction has been demonstrated to save considerable amounts of …
Published in International Journal of Microwave Engineering and Technology · Vol. 7, Issue 1, 2021 · pp. 22–28 Read article