Results 11 to 20 of about 173,282 (309)

Vehicle Cabin Noise Cancellation Model Using Pre-Filter for Improved Convergence Rate and Better Stability

open access: yesCommunications, 2023
Adaptive algorithms are used in updating the filter coefficients for active noise cancellation applications in reduction of vehicle cabin noise. The performance of the adaptive algorithms in low-frequency noise cancellation depends on how efficiently it ...
Janak Kapoor   +3 more
doaj   +1 more source

Rejection of PSK interference in DS-SS/PSK system using adaptive transversal filter with conditional response recalculation [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2003
PSK interference rejection using complex adaptive filter with conditional response recalculation in DS-SS/PSK system is considered in this paper. New adaptive filter decreases error probability for several orders of magnitude when compared to the ...
Nikolić Zorica   +2 more
doaj   +1 more source

Adaptive Filtering Revisited [PDF]

open access: yesJournal of the Operational Research Society, 1979
This paper shows that the adaptive filtering and forecasting techniques proposed by Makridakis and Wheelwright can be viewed as approximations to a more precise filtering method in which the Kalman filter is applied to a dynamic autoregressive model which is a special case of the models of Harrison and Stevens.
Nau, Robert F, Oliver, Robert M
openaire   +3 more sources

Detection Algorithm For Active Filters Based On Adaptive Inverse Control

open access: yesJournal of Applied Science and Engineering, 2023
In order to accurately compensate the harmonics and reactive power of the active power filter, a paralleltype active filter detection algorithm based on adaptive inverse control is proposed to control and follow the DC capacitor voltage, obtain the ...
Longhai Fu
doaj   +1 more source

Time-Range Adaptive Focusing Method Based on APC and Iterative Adaptive Radon-Fourier Transform

open access: yesRemote Sensing, 2022
In conventional radar signal processing, the cascade of pulse compression (i.e., matched filter) and Radon-Fourier transform (RFT) can extract the estimated scattering coefficient of the target in the range-velocity dimension through long-time coherent ...
Jian Guan   +4 more
doaj   +1 more source

On the Relation Between Smooth Variable Structure and Adaptive Kalman Filter

open access: yesFrontiers in Applied Mathematics and Statistics, 2020
This article is addressed to the topic of robust state estimation of uncertain nonlinear systems. In particular, the smooth variable structure filter (SVSF) and its relation to the Kalman filter is studied.
Mark Spiller, Dirk Söffker
doaj   +1 more source

Adaptive acoustooptic filter [PDF]

open access: yesApplied Optics, 1984
A new adaptive filter utilizing acoustooptic devices in a space integrating architecture is described. Two configurations are presented; one of them, suitable for signal estimation, is shown to approximate the Wiener filter, while the other, suitable for detection, is shown to approximate the matched filter.
D, Psaltis, J, Hong
openaire   +2 more sources

Fuzzy-Based Parameter Optimization of Adaptive Unscented Kalman Filter: Methodology and Experimental Validation

open access: yesIEEE Access, 2020
This study introduces a fuzzy based optimal state estimation approach. The new method is based on two principles: Adaptive Unscented Kalman filter, and Fuzzy Adaptive Grasshopper Optimization Algorithm. The approach is designed for the optimization of an
Reza Mohammadi Asl   +3 more
doaj   +1 more source

Adaptive Kalman Filtering

open access: yesJournal of Research of the National Bureau of Standards, 1985
The increased power of small computers makes the use of parameter estimation methods attractive. Such methods have a number of uses in analytical chemistry. When valid models are available, many methods work well, but when models used in the estimation are in error, most methods fail.
Brown, Steven D., Rutan, Sarah C.
openaire   +3 more sources

Bearing Fault Signal Analysis Based on an Adaptive Multiscale Combined Morphological Filter

open access: yesInternational Journal of Rotating Machinery, 2020
Bearing fault signal analysis is an important means of bearing fault diagnosis. To effectively eliminate noise in a fault signal, an adaptive multiscale combined morphological filter is proposed based on the theory of mathematical morphology.
Chun Lv   +4 more
doaj   +1 more source

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