Paper Title:
The Technology of Line-Spectrum Enhancement Based on Image Processing
  Abstract

Time-frequency spectrogram analysis is a basic method in passive radar and sonar. It′s necessary to enhance the line-spectrum to improve the performance in low SNR(Signal to Noise Ratio) and strong interference presented that wider detecting range and long reacting time can be obtained. The traditional line-spectrum enhancing technology based on signal′s coherence can′t work well in very low SNR, and the performance will drop sharply when the line-spectrums are close in frequencies or the number of line-spectrums increases. A new method which combines image processing with signal processing is brought out to overcome these defects. It can work well when the SNR in frequency domain is close to 0dB,which is much lower than ALE and other traditional technology. The results derived from simulation and trial data analysis show that it′s stable and can be applied in the field with line-spectrums.

  Info
Periodical
Chapter
Chapter 2: Signal and Image Processing in Industry
Edited by
Gary Yang
Pages
308-312
DOI
10.4028/www.scientific.net/AMR.429.308
Citation
D. Z. Zhu, W. H. Huang, "The Technology of Line-Spectrum Enhancement Based on Image Processing", Advanced Materials Research, Vol. 429, pp. 308-312, 2012
Online since
January 2012
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Juggrapong Treetrong
Abstract:Because the faults happening in the motor (such as the stator and the rotor faults) can distort the sinusoidal response of the motor RPM and...
115
Authors: Zhi Bin Gao
Chapter 10: Environmentally Sustainable Manufacturing Processes and Systems
Abstract:In order to extract major components of signal, multi-component nonstationary acoustic signal was analyzed with time-frequency analysis...
3163
Authors: Zhi Hua Hao, Zhuang Ma, Hao Miao Zhou
Chapter 17: Metrology and Measurement
Abstract:The reassignment method is a technique for sharpening a time-frequency representation by mapping the data to time-frequency coordinates that...
6256
Authors: Khanchai Tunlasakun
Chapter 7: Medicine and Medical Engineering
Abstract:This research presents the design and development of the heart sound monitor for bio-signal learning which can be worked with a personal...
644
Authors: Wei Ping Cui, Xiu Yan Wang
Chapter 3: Applied Sciences and Engineering Researches
Abstract:Frequency domain analysis of speech signal includes spectrum analysis, power spectrum and the inverse spectrum, spectral envelope analysis....
2906