Doppler Radio Fuze Signal Processing Method Based on the Extraction of Instantaneous Frequency

Lian Jie Li; Jia Hao Deng; Jin Liu

doi:10.4028/www.scientific.net/AMM.411-414.1033

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 411-414Doppler Radio Fuze Signal Processing Method Based...

Doppler Radio Fuze Signal Processing Method Based on the Extraction of Instantaneous Frequency

Abstract:

To get accurate frequency information from doppler signal is very difficult. In order to improve accuracy of doppler radio fuze, a design scheme which is not only using doppler signal amplitude information but also using doppler frequency information, and comprehensive and these two aspects of information give out the fuze work distance. The solution we give out in this paper is that we realize the STFT by application of parallel process mass on FPGA and together with quick frequency selection mechanism. Then we could get the frequency information from the doppler signal. Test results show that by using short time window Fourier transform, we could realize time-frequency analysis of doppler signal in allow system time delay.

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Periodical:

Applied Mechanics and Materials (Volumes 411-414)

Pages:

1033-1039

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.411-414.1033

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Online since:

September 2013

Authors:

Lian Jie Li, Jia Hao Deng, Jin Liu

Keywords:

Doppler Radio Fuze, Field-Programmable Gate Array (FPGA), STFT, Time-Frequency Analysis

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