A Frequency Selection Method Based on the Pole Characteristics

Yang, Songyan; Deng, Weibo; Yang, Qiang; Wu, Guangshun; Suo, Ying

doi:10.1155/2013/862029

Cited by 2 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…, and keeping the pole value corresponding to the threshold p (reference [23], 0.001 is taken generally) as the main pole. Select the main pole corresponding to the pole of the underwater spherical shell and the underwater thin rod.…”

Section: Target's Main Pole Selectionmentioning

confidence: 99%

“…[34] using a bionic dolphin to identify the cylindrical spherical shell. In the past 10 years, the team of Professor Deng Weibo of Harbin Institute of Technology has carried out research on radar pole extraction [22], [23], and performed simulation research on thin rods and solid spheres. The poles extracted by the matrix pencil method agree well with the theoretical poles.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Poles Extraction of Underwater Targets Based on Matrix Pencil Method

Zhou

Liu

et al. 2020

IEEE Access

View full text Add to dashboard Cite

The majority of the sonic frequency bands used in active sonar detection and identification are within the resonance region of the target. The poles of target are very important characteristics of the resonance region. This paper analyzes and studies the method of extracting poles by using the matrix Pencil Method. A method which can determine the number of poles of underwater target automatically is proposed. It can average the poles that are gathered to synthesize a point as an alternative pole. Then by setting up a reasonable threshold. The poles with the higher energy in the target echo is extracted as the main pole. Aiming at the problem that the main poles of the target are missing or there are false poles in some directions, the main poles extracted from multiple directions of the target are integrated to obtain the final poles of the target. Finally, to prove the feasibility of proposed novel method echo pole extraction, the experiment was conducted in underwater spherical shell and thin rod in a silencing pool. INDEX TERMS matrix pencil method, orientation invariance, pole feature extraction, singularity expansion method, underwater acoustic signal processing.

show abstract

Section: Target's Main Pole Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Poles Extraction of Underwater Targets Based on Matrix Pencil Method

Zhou

Liu

et al. 2020

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Several methods have been proposed for complex lasso [15][16][17] ; however, they generally suffer from the computational intensity and/or lack of considering the physics of the problem. One such physical phenomena is that the poles of a physical system appear in complex conjugate pairs 11,12,14 . Using this fact, one can change the complex-valued optimization of (8) into a real-valued lasso.…”

Section: Sparse Generalized Pencil-of-functionmentioning

confidence: 99%

Sparse generalized pencil of function and its application to system identification and structural health monitoring

Mohammadi-Ghazi

Büyüköztürk

2016

SPIE Proceedings

View full text Add to dashboard Cite

Singularity expansion method (SEM) is a system identification approach with applications in solving inverse scattering problems, electromagnetic interaction problems, remote sensing, and radars. In this approach, the response of a system is represented in terms of its complex poles; therefore, this method not only extracts the fundamental frequencies of the system from the signal, but also provides sufficient information about system's damping if its transient response is analyzed. There are various techniques in SEM among which the generalized pencil-of-function (GPOF) is the computationally most stable and the least sensitive one to noise. However, SEM methods, including GPOF, suffer from imposition of spurious poles on the expansion of signals due to the lack of apriori information about the number of true poles. In this study we address this problem by proposing sparse generalized pencil-of-function (SGPOF). The proposed method excludes the spurious poles through sparsity-based regularization with 1 -norm. This study is backed by numerical examples as well as an application example which employs the proposed technique for structural health monitoring (SHM) and compares the results with other signal processing methods.

show abstract

A Frequency Selection Method Based on the Pole Characteristics

Cited by 2 publications

References 11 publications

Poles Extraction of Underwater Targets Based on Matrix Pencil Method

Poles Extraction of Underwater Targets Based on Matrix Pencil Method

Sparse generalized pencil of function and its application to system identification and structural health monitoring

Contact Info

Product

Resources

About