Abstract
In this paper we analysis the performance of Rife algorithm and point out that the performance is poor when the true frequency is much close to quantized frequency of FFT. Aiming at this problem, an improved Rife algorithm is presented. This algorithm can make the signal frequency always located in the center between the two neighboring discrete frequencies by using zoom FFT technique. Then, in order to eliminate the impact of noise for the Rife algorithm, this paper propose to correct the improved Rife algorithm by using the window function for the signal. Simulation result showed that the improved algorithm had high estimation accuracy, strong anti-noise performance and good stability.
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© 2016 Springer International Publishing Switzerland
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Lv, J., Yun, L., Li, T. (2016). An Improved Rife Algorithm of Frequency Estimation for Frequency-Hopping Signal. In: Huang, DS., Jo, KH. (eds) Intelligent Computing Theories and Application. ICIC 2016. Lecture Notes in Computer Science(), vol 9772. Springer, Cham. https://doi.org/10.1007/978-3-319-42294-7_15
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DOI: https://doi.org/10.1007/978-3-319-42294-7_15
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