Results 41 to 50 of about 2,903,310 (399)

Non-iterative Filter Bank Phase (Re)Construction [PDF]

open access: yes, 2022
Signal reconstruction from magnitude-only measurements presents a long-standing problem in signal processing. In this contribution, we propose a phase (re)construction method for filter banks with uniform decimation and controlled frequency variation. The suggested procedure extends the recently introduced phase-gradient heap integration and relies on ...
arxiv   +1 more source

Analysis and application of digital spectral warping in analog and mixed-signal testing [PDF]

open access: yes, 2003
Spectral warping is a digital signal processing transform which shifts the frequencies contained within a signal along the frequency axis. The Fourier transform coefficients of a warped signal correspond to frequency-domain 'samples' of the original ...
Allen, W. R. M.   +3 more
core   +1 more source

Integration of Brillouin and passive circuits for enhanced radio-frequency photonic filtering

open access: yesAPL Photonics, 2019
Signal processing using on-chip nonlinear or linear optical effects has shown tremendous potential for RF photonic applications. Combining nonlinear and linear elements on the same photonic chip can further enable advanced functionality and enhanced ...
Yang Liu   +12 more
doaj   +1 more source

Low-Pass Parabolic FFT Filter for Airborne and Satellite Lidar Signal Processing

open access: yesSensors, 2015
In order to reduce random errors of the lidar signal inversion, a low-pass parabolic fast Fourier transform filter (PFFTF) was introduced for noise elimination.
Zhongke Jiao   +3 more
doaj   +1 more source

FIR to FIR Model Reduction with Linear Group Delay in Passband by SDP Optimization

open access: yesJournal of Electrical and Computer Engineering, 2020
Filter model reduction is an important optimization method in digital signal processing. A method of FIR to FIR model reduction using SDP optimization is proposed in this paper. At first, we use SDP to design an original FIR filter.
Haijiang Hu   +2 more
doaj   +1 more source

The design and implementation of folded adaptive lattice filter structures in FPGA for ECG signals

open access: yesAutomatika, 2023
An adaptive filter is the utmost essential filter castoff in statistical signal dealing. The fine-tuning of the filter factor in relation to the response signal is the adaptive filter's key feature due to fewer calculations, Least Mean Square (LMS ...
Kalamani C.   +3 more
doaj   +1 more source

Unified Linearization-based Nonlinear Filtering [PDF]

open access: yesarXiv, 2023
This letter shows that the following three classes of recursive state estimation filters: standard filters, such as the extended Kalman filter; iterated filters, such as the iterated unscented Kalman filter; and dynamically iterated filters, such as the dynamically iterated posterior linearization filters; can be unified in terms of a general algorithm.
arxiv  

On semi shift invariant graph filters [PDF]

open access: yesarXiv, 2022
In graph signal processing, one of the most important subjects is the study of filters, i.e., linear transformations that capture relations between graph signals. One of the most important families of filters is the space of shift invariant filters, defined as transformations commute with a preferred graph shift operator. Shift invariant filters have a
arxiv  

Review of Fundamental Active Current Extraction Techniques for SAPF

open access: yesSensors, 2022
The field of advanced digital signal processing methods is one of the fastest developing scientific and technical disciplines, and is important in the field of Shunt Active Power Filter control methods.
Jan Baros   +6 more
doaj   +1 more source

Application of Derivative Transform Spectroscopy in Gas Detection [PDF]

open access: yesE3S Web of Conferences, 2021
Digital filtering technique is of great significance in real-time signal processing and analysis, but the stability, efficiency and flexibility of filter algorithm are important indicators to reflect its application value.
Chen Tingting   +3 more
doaj   +1 more source

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