Results 11 to 20 of about 37,734,634 (146)

Optimisation of multiplier-less FIR filter design techniques [PDF]

This thesis is concerned with the design of multiplier-less (ML) finite impulse response (FIR) digital filters. The use of multiplier-less digital filters results in simplified filtering structures, better throughput rates and higher speed.
Cemes, Radovan
core   +9 more sources

Medical image enhancement using threshold decomposition driven adaptive morphological filter [PDF]

, 2008
One of the most common degradations in medical images is their poor contrast quality. This suggests the use of contrast enhancement methods as an attempt to modify the intensity distribution of the image.
Mahmoud, Tarek A., Tarek A. Mahmoud, Mahmoud, Tarek, Stephen Marshall, Marshall, Stephen   +4 more
core   +4 more sources

Acoustooptic digital filter [PDF]

Applied Optics, 1985
Digital filters have three components: (1) unit delays, (2) multipliers, and (3) adders. These components can be implemented by using (1) a Bragg cell as a tapped delay line, (2) optical multiplication using the Bragg cell transmittance, and (3) photodetectors.
F, Salamat, R J, Marks Ii
openaire   +2 more sources

A new realization of wave digital filters using GIC and fractional bilinear transform

Engineering Science and Technology, an International Journal, 2016
In this paper, a new class of second-order digital filters is developed by using the concept of wave characterization, fractional bilinear transform and generalized immittance converter (GIC).
Richa Barsainya, Tarun Kumar Rawat, Rachit Mahendra   +2 more
doaj   +1 more source

Improved Delay-Dependent Stability Analysis of Fixed-Point State-Space Digital Filters With Time-Varying Delay and Generalized Overflow Arithmetic

IEEE Access, 2022
This paper is concerned with the stability analysis of fixed-point state-space digital filters with generalized overflow arithmetic and a time-varying delay.
Fudong Li, Jian Chen, Lanhong Zhang, Qibing Wang, Lin Jiang   +4 more
doaj   +1 more source

Optimal Polynomial Approximants in Lp

Concrete Operators, 2022
Over the past several years, optimal polynomial approximants (OPAs) have been studied in many different function spaces. In these settings, numerous papers have been devoted to studying the properties of their zeros.
Centner Raymond
doaj   +1 more source

Common-Mode Driven Synchronous Filtering of the Powerline Interference in ECG

Applied Sciences, 2022
Powerline interference (PLI) is a major disturbing factor in ground-free biopotential acquisition systems. PLI produces both common-mode and differential input voltages.
Tatyana Neycheva, Dobromir Dobrev, Vessela Krasteva   +2 more
doaj   +1 more source

Data Acquisition Filtering Focused on Optimizing Transmission in a LoRaWAN Network Applied to the WSN Forest Monitoring System

Sensors, 2023
Developing innovative systems and operations to monitor forests and send alerts in dangerous situations, such as fires, has become, over the years, a necessary task to protect forests.
Thadeu Brito, Beatriz Flamia Azevedo, João Mendes, Matheus Zorawski, Florbela P. Fernandes, Ana I. Pereira, José Rufino, José Lima, Paulo Costa   +8 more
doaj   +1 more source

Real-time adaptive filtering of dental drill noise using a digital signal processor [PDF]

, 2006
The application of noise reduction methods requires the integration of acoustics engineering and digital signal processing, which is well served by a mechatronic approach as described in this paper.
Kaymak, E, Millar, B, Atherton, MA, Rotter, KRG   +3 more
core   +4 more sources

Implementation of real-time digital filter for the R wave detection

TecnoLógicas, 2015
Quantification of the instantaneous heart rate is based on the detection of the R wave of the electrocardiographic signal. This process requires the implementation of strategies for real-time filtering for the time of occurrence of each R wave.
Javier E. González-Barajas, Cristian Velandia-Cárdenas, Johann Nieto-Camacho   +2 more
doaj   +1 more source