DocumentCode
259574
Title
A new fast, accurate frequency estimator based on DFT
Author
Shenghua Zliai ; Xian´an Zheng
Author_Institution
CAST-Xi´an Institute of Space Radio Technology, Shaanxi, China
fYear
2014
fDate
15-17 May 2014
Firstpage
1
Lastpage
5
Abstract
This paper presents a new fast and accurate algorithm for frequency estimation, which uses together the amplitude and phase information of the DFT (Discrete Fourier Transform) results. It is an unbiased estimator. The simulation proves that the performance of proposed algorithm is close to MCRB (Modified Cramer-Rao Bound), and its characterization of SNR (Signal Noise Ratio) threshold is similar to the maximum likelihood algorithm. At the same time, it is a low complexity algorithm, which can be implemented by hardware easily. Therefore, the proposed algorithm is suitable for receiver in satellite communication systems, navigation systems and etc..
Keywords
Frequency estimator; Modified Cramer-Rao Bound (MCRB); fast algorithm; high accurate algorithm;
fLanguage
English
Publisher
iet
Conference_Titel
Information and Communications Technologies (ICT 2014), 2014 International Conference on
Conference_Location
Nanjing, China
Type
conf
DOI
10.1049/cp.2014.0563
Filename
6913616
Link To Document