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http://dx.doi.org/10.9723/jksiis.2019.24.5.095

Design of the Robust Generalized Sinusoidal Frequency Modulated Pulse in Reverberation Environments  

Kim, Guenhwan (경북대학교 전자공학부)
Yoon, Kyungsik (김천대학교, IT융복합공학과)
Lee, Donghwa (대구대학교, 정보통신공학부)
Cho, Chomgun (국방과학연구소, 해양기술연구원)
Hong, Jungpyo (국방과학연구소, 해양기술연구원)
Lee, Kyunkyung (경북대학교 전자공학부)
Publication Information
Journal of Korea Society of Industrial Information Systems / v.24, no.5, 2019 , pp. 95-104 More about this Journal
Abstract
In this paper, we propose a method to design a generalized sinusoidal frequency modulated(GSFM) pulse that is robust to reverberation environment. GSFM pulses are a generalized form of SFM(Sinusoidal frequency modulated) pulses, which have the advantage of having a thumbtack ambiguity function with excellent range and Doppler resolution. However, the periodicity disappears during the generalization process, therefore, the detection performance is reduced in reverberation environment compared to SFM pulse with comb spectrum. In this paper, the trade-off relationship between the reverberation suppression performance of the SFM pulse and the range resolution performance of the GSFM pulse is analyzed by appropriately changing the parameter ${\rho}$ of the GSFM pulse. In order to verify the performance of the proposed GSFM pulse, the simulation was performed and it was confirmed that the proposed GSFM pulse has excellent distance resolution while detecting the slow Doppler target.
Keywords
Active sonar; Pulse design; Reverberation reduction; GSFM pulse;
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Times Cited By KSCI : 1  (Citation Analysis)
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