Tehnički vjesnik, Vol. 29 No. 6, 2022.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20220805032133
Divide and Conquer Partition for Fourier Reconstruction Sparse Inversion with its Applications
Zhaolin Zhu
; Hainan institute of Zhejiang University, 11# Building, Yongyou Industrial Park, Yazhou Bay Science and Technology City, Yazhou District, Sanya City, Hainan Province 572025, P.R. China
Haoran Ren
; Zhejiang University, 154# Yugu Road, Xihu District, Hangzhou City, Zhejiang Province 310027, P.R. China
Liurong Tao
; Zhejiang University, 154# Yugu Road, Xihu District, Hangzhou City, Zhejiang Province 310027, P.R. China
Jinsheng Jiang
; Zhejiang University, 154# Yugu Road, Xihu District, Hangzhou City, Zhejiang Province 310027, P.R. China
Tong Wang
; Zhejiang University, 154# Yugu Road, Xihu District, Hangzhou City, Zhejiang Province 310027, P.R. China
Mingxin Cheng
; Zhejiang University, 154# Yugu Road, Xihu District, Hangzhou City, Zhejiang Province 310027, P.R. China
Shuaimin Ding
; Zhejiang University, 154# Yugu Road, Xihu District, Hangzhou City, Zhejiang Province 310027, P.R. China
Rui Du
; Zhejiang University, 154# Yugu Road, Xihu District, Hangzhou City, Zhejiang Province 310027, P.R. China
Sažetak
A partition method, with an efficient divide and conquer partition strategy, for the non-uniform sampling signal reconstruction based on Fourier reconstruction sparse inversion (FRSI) is developed. The novel partition FRSI(P-FRSI) is motivated by the observation that the partition processing of multi-dimensional signals can reduce the reconstruction difficulty and save the reconstruction time. Moreover, it is helpful to choose suitable reconstruction parameters. The P-FRSI employs divide and conquer strategy, and the signal is firstly partitioned into some blocks. Following that, traditional FRSI is applied to reconstruct signals in each block. We adopt linear or nonlinear superposition to determine the weight coefficients during integrating these blocks. Finally, P-FRSI is applied to two-dimensional seismic signal reconstruction. The superiority of the new method over conventional FRSI is demonstrated by numerical reconstruction experiments.
Ključne riječi
Divide and conquer partition; Fourier reconstruction sparse inversion; Non-uniform sampling; Signal reconstruction
Hrčak ID:
284920
URI
Datum izdavanja:
29.10.2022.
Posjeta: 502 *