An Improved Parameter Estimation Algorithm Based on FFT for LFM Signal

An Improved Parameter Estimation Algorithm Based on FFT for LFM Signal

Parameter estimation is essential to receive a linear frequency modulation (LFM) signal precisely, so in this paper an improved parameter estimation algorithm based on FFT is proposed. Compared to the traditional one-dimension search procedure, the algorithm just needs two FFT steps plus one correla...

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Veröffentlicht in:Applied Mechanics and Materials 2014-02, Vol.519-520 (Computer and Information Technology), p.1000-1004
Hauptverfasser: Zhou, Rong, Liu, Ai Jun, Gong, Chao, Pan, Xiao Fei
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
Computer simulation
Correlation
Feasibility
Frequency modulation
Noise levels
Parameter estimation
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Zusammenfassung:Parameter estimation is essential to receive a linear frequency modulation (LFM) signal precisely, so in this paper an improved parameter estimation algorithm based on FFT is proposed. Compared to the traditional one-dimension search procedure, the algorithm just needs two FFT steps plus one correlation step only. Without searching process and low computational complexity, the algorithm is easy for project application. The simulations verify feasibility of the algorithm, when SNR is above-3 dB, the algorithm can work well.
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.519-520.1000