A novel single tone frequency estimation by interpolation using DFT samples with zero-padding
- Resource Type
- Conference
- Authors
- Jinzhi, Xiang; Qing, Shen; Wei, Cui
- Source
- 2016 IEEE 13th International Conference on Signal Processing (ICSP) Signal Processing (ICSP), 2016 IEEE 13th International Conference on. :277-281 Nov, 2016
- Subject
- Signal Processing and Analysis
Frequency estimation
Discrete Fourier transforms
Signal to noise ratio
Maximum likelihood estimation
Interpolation
Algorithm design and analysis
Frequency Estimation
ML
Sinusoid
DFT Interpolation
Zero-padding
- Language
- ISSN
- 2164-5221
A novel algorithm is proposed for frequency estimation of a single complex exponential signal or a real sinusoid signal in additive white Gaussian noise (AWGN). The proposed algorithm consists of a coarse search and a fine search, where the coarse search can be accomplished by maximum likelihood (ML) estimation, while the fine search performs a frequency interpolation via time-domain zero padding before applying discrete Fourier transform (DFT) with a novel residue frequency estimator proposed. Simulation results demonstrate that improved performance can be achieved by our proposed estimator based on zero-padding data sequence.