Please use this identifier to cite or link to this item:
http://hdl.handle.net/10603/483264
Title: | Investigations on performance Enhancement of proportionate Affine projection algorithms for Sparse system identification |
Researcher: | Senthil murugan, B |
Guide(s): | Swarnalatha, A |
Keywords: | Engineering and Technology Engineering Engineering Electrical and Electronic projection algorithms Sparse system identification |
University: | Anna University |
Completed Date: | 2022 |
Abstract: | Cluster-sparse or block-sparse system identification has gained newlinemuch attention in the domain of adaptive signal processing and the adaptive newlinefilters that improve the performance of identifying cluster-sparse systems are newlinebeing studied intensively. As sparse systems have only a few significant newlinecoefficients amidst large number of insignificant coefficients, the newlineproportionate algorithms exploit sparsity by assigning step-sizes that are newlineproportional to the individual coefficients. The objective of this research is to newlinepropose new algorithms for cluster-sparse or block-sparse system newlineidentification that exhibit improvement in terms of normalised misalignment, newlinetracking, and convergence rate over the existing algorithms in literature. newlineFirstly, a set of algorithms for the Cluster-Sparse Proportionate newlineAffine Projection Algorithm (CS-PAPA) or Cluster-Sparse Improved newlineProportionate Affine Projection Algorithm (CS-IPAPA) is proposed in the newlinecontext of echo cancellation. The algorithms are named Memory Cluster- newlineSparse Proportionate Affine Projection Algorithm (MCS-PAPA) and Memory newlineCluster-Sparse Improved Proportionate Affine Projection Algorithm (MCSIPAPA), newlinewhich incorporate the history of proportionate factors into the CSPAPA newlineand CS-IPAPA, respectively. The update equation is derived from the newlinecost function of the CS-PAPA or CS-IPAPA. Based on the energy newlineconservation arguments, a rigorous performance analysis of the proposed newlineMCS-PAPA is presented. Experimental results for the steady-state mean newlinesquare error corroborate with the theoretical expressions. Moreover, the newlinecondition for the mean stability is derived. Through simulations, the transient newlineperformance of MCS-PAPA is analyzed newline |
Pagination: | xxi,161p. |
URI: | http://hdl.handle.net/10603/483264 |
Appears in Departments: | Faculty of Information and Communication Engineering |
Files in This Item:
File | Description | Size | Format | |
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01_title.pdf | Attached File | 179.95 kB | Adobe PDF | View/Open |
02_prelim pages.pdf | 1.08 MB | Adobe PDF | View/Open | |
03_content.pdf | 327.54 kB | Adobe PDF | View/Open | |
04_abstract.pdf | 235.95 kB | Adobe PDF | View/Open | |
05_chapter 1.pdf | 872.4 kB | Adobe PDF | View/Open | |
06_chapter 2.pdf | 668.73 kB | Adobe PDF | View/Open | |
07_chapter 3.pdf | 1.06 MB | Adobe PDF | View/Open | |
08_chapter 4.pdf | 706.83 kB | Adobe PDF | View/Open | |
09_chapter 5.pdf | 1 MB | Adobe PDF | View/Open | |
10_chapter 6.pdf | 1.06 MB | Adobe PDF | View/Open | |
12_annexures.pdf | 82.35 kB | Adobe PDF | View/Open | |
80_recommendation.pdf | 400.58 kB | Adobe PDF | View/Open |
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