The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dalam kertas kerja ini, kami mencadangkan reka bentuk berasaskan unjuran pembinaan semula hampir sempurna bank QMF. Kelebihan kaedah ini ialah spesifikasi reka bentuk tambahan mudah dilaksanakan dengan mentakrifkan set cembung baharu. Untuk menggunakan teknik unjuran cembung, kesukaran utama adalah bagaimana untuk menganggarkan spesifikasi reka bentuk oleh beberapa set cembung tertutup. Dalam makalah ini, memperkenalkan tanggapan tentang Ruang Produk Magnitud apabila sepasang tindak balas magnitud penapis analisis dinyatakan sebagai titik, kami menganggarkan keperluan reka bentuk bank QMF dengan berbilang set cembung tertutup dalam ruang ini. Kaedah yang dicadangkan secara berulang menggunakan teknik unjuran cembung, Kaedah Turun Tercuram Hibrid, untuk mencari titik yang sepadan dengan penapis analisis optimum pada setiap peringkat, di mana set cembung tertutup dipertingkatkan secara dinamik. Contoh reka bentuk menunjukkan bahawa kaedah reka bentuk yang dicadangkan membawa kepada peningkatan yang ketara berbanding kaedah reka bentuk konvensional.
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Salinan
Hiroshi HASEGAWA, Isao YAMADA, Kohichi SAKANIWA, "A Design of Near Perfect Reconstruction Linear-Phase QMF Banks Based on Hybrid Steepest Descent Method" in IEICE TRANSACTIONS on Fundamentals,
vol. E83-A, no. 8, pp. 1523-1530, August 2000, doi: .
Abstract: In this paper, we propose a projection based design of near perfect reconstruction QMF banks. An advantage of this method is that additional design specifications are easily implemented by defining new convex sets. To apply convex projection technique, the main difficulty is how to approximate the design specifications by some closed convex sets. In this paper, introducing a notion of Magnitude Product Space where a pair of magnitude responses of analysis filters is expressed as a point, we approximate design requirements of QMF banks by multiple closed convex sets in this space. The proposed method iteratively applies a convex projection technique, Hybrid Steepest Descent Method, to find a point corresponding to the optimal analysis filters at each stage, where the closed convex sets are dynamically improved. Design examples show that the proposed design method leads to significant improvement over conventional design methods.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e83-a_8_1523/_p
Salinan
@ARTICLE{e83-a_8_1523,
author={Hiroshi HASEGAWA, Isao YAMADA, Kohichi SAKANIWA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Design of Near Perfect Reconstruction Linear-Phase QMF Banks Based on Hybrid Steepest Descent Method},
year={2000},
volume={E83-A},
number={8},
pages={1523-1530},
abstract={In this paper, we propose a projection based design of near perfect reconstruction QMF banks. An advantage of this method is that additional design specifications are easily implemented by defining new convex sets. To apply convex projection technique, the main difficulty is how to approximate the design specifications by some closed convex sets. In this paper, introducing a notion of Magnitude Product Space where a pair of magnitude responses of analysis filters is expressed as a point, we approximate design requirements of QMF banks by multiple closed convex sets in this space. The proposed method iteratively applies a convex projection technique, Hybrid Steepest Descent Method, to find a point corresponding to the optimal analysis filters at each stage, where the closed convex sets are dynamically improved. Design examples show that the proposed design method leads to significant improvement over conventional design methods.},
keywords={},
doi={},
ISSN={},
month={August},}
Salinan
TY - JOUR
TI - A Design of Near Perfect Reconstruction Linear-Phase QMF Banks Based on Hybrid Steepest Descent Method
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1523
EP - 1530
AU - Hiroshi HASEGAWA
AU - Isao YAMADA
AU - Kohichi SAKANIWA
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E83-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 2000
AB - In this paper, we propose a projection based design of near perfect reconstruction QMF banks. An advantage of this method is that additional design specifications are easily implemented by defining new convex sets. To apply convex projection technique, the main difficulty is how to approximate the design specifications by some closed convex sets. In this paper, introducing a notion of Magnitude Product Space where a pair of magnitude responses of analysis filters is expressed as a point, we approximate design requirements of QMF banks by multiple closed convex sets in this space. The proposed method iteratively applies a convex projection technique, Hybrid Steepest Descent Method, to find a point corresponding to the optimal analysis filters at each stage, where the closed convex sets are dynamically improved. Design examples show that the proposed design method leads to significant improvement over conventional design methods.
ER -