Time-frequency distribution kernels using FIR filter design techniques

1997 ◽  
Vol 45 (6) ◽  
pp. 1645-1650 ◽  
Author(s):  
G.T. Venkatesan ◽  
M.G. Amin
Keyword(s):  
Frequency Distribution ◽  
Filter Design ◽  
Fir Filter ◽  
Time Frequency ◽  
Fir Filter Design ◽  
Time Frequency Distribution ◽  
Design Techniques

scholarly journals A Novel Fractional Filter Design and Cross-Term Elimination in Wigner Distribution

2015 ◽  
Vol 2015 ◽  
pp. 1-12
Author(s):  
Jiexiao Yu ◽  
Kaihua Liu ◽  
Liang Zhang ◽  
Peng Luo
Keyword(s):  
Frequency Distribution ◽  
Filter Design ◽  
Wigner Distribution ◽  
Piecewise Linear ◽  
Support Vector ◽  
Svm Classifier ◽  
Cross Term ◽  
Time Frequency ◽  
Fractional Filter ◽  
Time Frequency Distribution

The second and the third sentences of the abstract are changed and the shorter abstract is given as follows. To recover the nonstationary signal in complicated noise environment without distortion, a novel general design of fractional filter is proposed and applied to eliminate the Wigner cross-term. A time-frequency binary image is obtained from the time-frequency distribution of the observed signal and the optimal separating lines are determined by the support vector machine (SVM) classifier where the image boundary extraction algorithms are used to construct the training set of SVM. After that, the parameters and transfer function of filter can be determined by the parameters of the separating lines directly in the case of linear separability or line segments after the piecewise linear fitting of the separating curves in the case of nonlinear separability. Without any prior knowledge of signal and noise, this method can meet the reliability and universality simultaneously for filter design and realize the global optimization of filter parameters by machine learning even in the case of strong coupling between signal and noise. Furthermore, it could completely eliminate the cross-term in Wigner-Ville distribution (WVD) and the time-frequency distribution we get in the end has high resolution and good readability even when autoterms and cross-terms overlap. Simulation results verified the efficiency of this method.

scholarly journals Combined interpolation—restoration of Landsat images through FIR filter design techniques

1993 ◽  
Vol 14 (13) ◽  
pp. 2547-2561 ◽  
Author(s):  
L. M. G. FONSECA ◽  
G. S. S. D. PRASAD ◽  
N. D. A. MASCARENHAS
Keyword(s):  
Filter Design ◽  
Fir Filter ◽  
Landsat Images ◽  
Fir Filter Design ◽  
Design Techniques

scholarly journals Implementation of Fir Filter Using Distributed Arithmetic and Distributed Arithmetic Off-Set Binary Coding Algorithms

2021 ◽  
pp. 440-445
Author(s):  
Prof. Bhavya V ◽  
Pallavi J P ◽  
Abhilash S V ◽  
Anusha D S ◽  
Apsara P S ◽  
...  
Keyword(s):  
High Stability ◽  
Filter Design ◽  
Fir Filter ◽  
Distributed Arithmetic ◽  
Look Up Table ◽  
Binary Coding ◽  
Fir Filter Design ◽  
Design Techniques

This paper is the study of implementation of FIR filter using Distributed Arithmetic and Distributed Arithmetic Offset Binary Coding Algorithms. Distributed Arithmetic (DA) had been used to implement an FIR filter due to its high stability and linearity by using look-up table (LUT). The performance of DA technique and DA-OBC for FIR filter design is analyzed and the results are compared to the traditional FIR filter design techniques.

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