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370 articles for “Filtering”
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Implementation of Kalman Filter Using TDC and PLL for Object Detection and Tracking in Signal Processing
Abstract: The measurement uncertainty of GPS receivers is dependent on a wide range of external factors, including receiver clock precision, thermal noise, atmospheric influences, and minute variations in satellite positions. Estimating hidden states precisely and accurately in the face of uncertainty is one of the main problems facing tracking and control systems. Among the most significant and widely used estimate methods is the Kalman Filter. It uses imprecise and erratic measurements …
Published in Current Trends in Signal Processing · Vol. 13, Issue 2, 2023 · pp. 38–47 Read article
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Energy-efficient and low-complexity linear phase filter design
Abstract: Digital signal processing (DSP) systems require digital filters as a critical component. DSP is one of the technologies that will have the biggest impact on science, engineering, and technology. For many portable signal processing applications, linear phase FIR filters with high throughput, good energy economy, and low latency are extremely desirable. The trade-off between performance indicators makes it difficult to boost throughput and energy efficiency while lowering low complexity. This …
Published in Journal of Electronic Design Technology · Vol. 13, Issue 2, 2022 · pp. 41–53 Read article
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Harmonic Mitigation in Shunt Active Power Filter Regulation Approaches with Synchronous Reference Frame: An Extensive Analysis
Abstract: The Shunt Active Power Filter (SAPF) is discussed in this work as a means of removing line-side current harmonics. The Voltage Source Inverter (VSI) topology serves as the foundation for the Active Power Filter. It resolves the power system's harmonic current issue. Additionally, it balances the load on three phases and compensates for reactive power (if load is unbalanced). After measuring load current, it switches to the dq0 coordinate system. …
Published in Journal of Microcontroller Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 6–15 Read article
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High Throughput LMS Adaptive Filter Architectures using Pipelining and Parallel Processing
Abstract: AbstractIn this paper, a study on existing designs of adaptive filter based on LMS algorithm is done. The primary aim is to reduce the critical path delay and thereby improve throughput. The excess use of multipliers or the lack of a time efficient one and longer cycle periods reduces the effectiveness of any adaptive filter implementation. Here, a simple and highly time efficient Vedic multiplier is used in the implementation …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 2, 2018 · pp. 11–19 Read article
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Open-Loop Resonator with Interdigital Capacitor Bandpass Filter For Wireless Application
Abstract: In this paper bandpass filter have been designed and simulate using two open loop resonator with polygonal forms and to enlarge the bandwidth by using interdigital capacitor in between two open loop resonators. The overall filter dimensions are 8 x 16 mm² using Rogers Ro 3010 with thickness of 1.5 mm and relative permittivity 10.2 The centre frequency of 2.45 GHz and -3dB fractional bandwidth (FBW) of 12.3% with return …
Published in Recent Trends in Electronics Communication Systems · Vol. 6, Issue 2, 2019 · pp. 22–25 Read article
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Stationary Wavelet and Recursive Least Square Filtering Based Fetal ECG Data Extraction from Composite Abdominal Signal
Abstract: This paper introduces a fast methodology for fetal ECG extraction based on stationary wavelet and noise canceler adaptive filter with the recursive least square filter. Firstly, signals are preprocessed by moving averaging filter for removing baseline wander. The stationary wavelet and the recursive least square filter is applied on preprocessed signal that effectively separates the maternal ECG and extracts fetal ECG (fECG) from the abdominal ECG. Finally, fetal ECG(fECG) is …
Published in Current Trends in Signal Processing · Vol. 7, Issue 2, 2017 · pp. 46–58 Read article
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Realization of Fourth Order Multifunction Filters Using Operational Transresistance Amplifier
Abstract: Design of analog filters, using single Operational Transresistance Amplifier (OTRA) as the active current mode building block, is presented. Five types of filters have been designed namely Low Pass, High Pass, Band Pass, All pass, and Notch. The order of the proposed filters is four. The theoretical results are verified with PSPICE simulation using 0.5m CMOS process parameters provided by MOSIS (AGILENT). Frequency responses for the presented filters are shown …
Published in Journal of Electronic Design Technology · Vol. 3, Issue 1-3, 2012 · pp. 65–71 Read article
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Implementation of FIR Filter with Reverse Converter based RNS Kogge–Stone Adder
Abstract: AbstractLow power very large scale integration (VLSI) circuits are pertinent for designing of steep overall performance and adjustable devices. In current technology VLSI plays a vital role to reduce power consumption and delay. In analog to digital converter process, adder plays a crucial role. The authority of nonviolent issue is increasing regularly because of changing that a way, packaging and cooling cost, transportable route of motion and reliability. This freebie …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 2, 2018 · pp. 34–43 Read article
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A Novel Improved Model of Three-phase Shunt Active Power Filter using Adaptive Tabu Search and Genetic Algorithm in Aircraft Power Utility of 400 Hz
Abstract: A new improved model of aircraft shunt filter has been proposed in this paper. The shunt active power filter model has been improved using Adaptive Tabu Search Algorithm and Genetic Algorithm. ATS algorithm has been used to obtain the optimum value of parameters of the PI controller; whereas Genetic Algorithm has been used to find the optimum value of filter inductor used in active filter. The new improved model of …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 3, 2013 · pp. 6–14 Read article
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Circular Retiming technique to design Optimized Least Mean square architecture for adaptive filter
Abstract: Circular retiming improves performance and power consumption of the Least Mean Square (LMS) adaptive filter. It is implemented for weight updated block and error computational block to minimize the adaptive filter error without violating the functional equivalence output. Here, filter multiplication block is updated in a circular convolution format and is retimed to reduce the dynamic power consumption. Additional retime flip-flops shows better performance result compared with the existing state-of-the-art …
Published in Journal of VLSI Design Tools and Technology · Vol. 8, Issue 3, 2018 · pp. 1–9 Read article
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Design of Smart Filter for Impulsive Noise Cancellation in Images
Abstract: Noise is nature inherent. It can affect any type of signal or noise at the time of acquisition. Impulsive is one of the noise which appears suddenly with the signal or noise. In this paper, we have considered the images affected by impulsive noise. A filter based on fuzzy logic is designed and it can suppress noise in any environment at any time. It is based on standard fuzzy rules …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 2, 2018 · pp. 56–65 Read article
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Design of Dual Media Water Filter Purifier Using Clay Pot
Abstract: Numerous organisations make low-cost water treatment devices for rural homes, for instance filters, RO and UV-based water purifiers. However, these devices have problems like filter clogging, the need to replace filters frequently water contamination (in the case of RO), and the truth that electricity is not always available in rural areas, which makes them costly to use. Because of this, RO and UV purifiers are too expensive for people who …
Published in Journal of Water Pollution & Purification Research · Vol. 12, Issue 3, 2025 · pp. 94–99 Read article
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Effective FPGA Implementation of Comb Filters to Improve Perception of Sensorineural Hearing Impaired
Abstract: AbstractIn this paper, effective method for implementation of comb filter on FPGA platform has been proposed. This work is intended for hearing aid to be used for people suffering from sensorineural hearing loss. The algorithmic implementation on FPGA is intricate during the design process. Here we propose effective and simplified approach for implementation of comb filter with 512 coefficients using Spartan-6 FPGA for dichotic presentation. The design of comb filter …
Published in Current Trends in Signal Processing · Vol. 7, Issue 3, 2017 · pp. 15–29 Read article
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Computation of IIR Filter Coefficient using Genetic Algorithm
Abstract: In the proposed paper the filter coefficient of the infinite impulse response filter is estimated by using genetic algorithm. Genetic algorithm is a computational optimization technique which optimizes fitness function. The paper finds the optimum coefficient of the infinite impulse response filter and compares it to the filter coefficients obtained after conversion of analog filter into digital infinite impulse response filter. It is found that the coefficients obtained after genetic …
Published in Current Trends in Signal Processing · Vol. 5, Issue 2, 2015 · pp. 24–26 Read article
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Design and Analysis of FIR Filter using Neural Network
Abstract: This paper is intended to provide an alternative approach for comparison of FIR digital filter by using neural network. This proposed approach establishes relation between (I) order and main width lobe of filter and (II) order and cutoff frequency of filter. In this paper is used FDA tool to design digital FIR filters of different orders and neural network tool box to compare different filters. As the simulation results show, …
Published in Current Trends in Signal Processing · Vol. 3, Issue 2, 2013 · pp. 9–14 Read article
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Survey of Advanced Control Techniques for Active Power Filters in Grid Integration
Abstract: Active power filters (APFs) can increase power quality, dependability, and stability on power utilities by compensating for harmonic and reactive current components in power supplies. The performance and stability of active power filters are greatly enhanced by the control strategies used with them. When these two crucial elements start to compete, it is impossible to achieve both unity power factor (UPF) and flawless correction of current harmonics. A systematic review …
Published in Current Trends in Signal Processing · Vol. 13, Issue 3, 2023 · pp. 24–34 Read article
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Designing of Low Pass Finite Impulse Response Filter using Radial Basis Function Neural Network
Abstract: The present paper investigates an approach to design and analysis of a low pass finite impulse response (FIR) filter using artificial neural network. The main aim of design is to find out the filter coefficients that define the filter transfer functions. A datasheet of 40 different values of h (n), i.e., coefficient of digital low pass FIR filter are used for filter designing. In this paper Radial Basis Function method …
Published in Journal of Control & Instrumentation · Vol. 5, Issue 2, 2014 · pp. 21–24 Read article
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Effect on Temperature and Efficiency on Photovoltaic Module of PV/T System with Water Based Optical Filter
Abstract: Solar radiation has ultraviolet, visible and infrared radiations, in which infrared and ultra-violet part of the solar radiation are mainly responsible for the heating of solar cell. This decreases the efficiency of the solar cell by –0.3 to –0.5% K-1. When we increase the concentration on the solar cell then the heat becomes more prominent and causes the damage of the solar cell, and also decreases the efficiency of solar …
Published in Journal of Electronic Design Technology · Vol. 8, Issue 1, 2017 · pp. 1–6 Read article
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Compact Microstrip Band-pass Filter Using Open-loop Square Shaped DGS
Abstract: This paper presents to implement a compact microstrip band-pass filter with open-loop square dumbbell-shaped defected ground structure (DGS). This filter is designed at 2.1 GHz center frequency. The prototype filter is with defected ground structure to provide higher order quasi-elliptic filtering and it reports the return loss of 39 dB with a 3 dB fractional bandwidth of 880 MHz. The bandwidth of the band-pass filter can be easily controlled by …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 1, 2013 · pp. 11–14 Read article
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Design and Analysis of Microstrip Band Stop Filter with Modified Circle and Dumbbell Shape Ground Structure
Abstract: In this proposed paper the performance of Band stop filter with modified ground structure is analyzed in this specific work; the modified ground structure includes a circle and dumbbell etched shapes in ground plane. Parameters of the proposed configuration were calculated at the cut off frequencies of f1=1 GHz, f2=1.62GHz and also proposed designs having substrate height of 1.6 mm, loss tangent of 0.02 and dielectric constant of 4.4. Results …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 26–31 Read article