A Simple and Effective Algorithm for Sinusoidal Frequency Estimation

Author

Chao, Wu ; Yi, Zheng ; Jun-cheng, Wang ; Hui, Liu ; Qing-feng, Ma

Author_Institution

Shandong Provincial Key Lab. of Ocean Environ. Monitoring Technol., Shandong Univ. of Sci. & Technol., Qingdao, China

fYear

2012

Firstpage

70

Lastpage

73

Abstract

Frequency estimation plays a very important position in underwater noise monitoring. The estimation method based on complex modulation (ZOOMFFT) can estimate the frequency with a sufficiently specified high sampling frequency within a narrow-band frequency signal spectrum. In this paper, the complex modulation principle is described, and its effectivity in reducing workload and improving accuracy is shown by simulation. By the complex modulation, down-sampling and FFT operating, the figure of simulation result is shown and then the validation of this method in improving the frequency estimation accuracy is done. It is easy to be implemented by microcontroller and can work for underwater noise analyze.

Keywords

acoustic noise; fast Fourier transforms; frequency estimation; modulation; underwater acoustic communication; FFT operating; complex modulation principle; down-sampling; high sampling frequency; microcontroller; narrow-band frequency signal spectrum; sinusoidal frequency estimation; underwater noise monitoring; Finite impulse response filter; Frequency estimation; Frequency modulation; Low pass filters; Monitoring; FFT; ZOOMFFT; complex modulation; frequency estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2012 International Conference on

Conference_Location

Hunan

Print_ISBN

978-1-4673-0458-0

Type

conf

DOI

10.1109/CDCIEM.2012.23

Filename

6178451