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http://dx.doi.org/10.9723/jksiis.2022.27.5.049

Mutual interference suppression of the sinusoidal frequency modulated pulse using SHAPE algorithm  

Kim, Guenhwan (세종대학교 해양시스템융합공학과)
Lee, Donghwa (대구대학교 AI학부)
Publication Information
Journal of Korea Society of Industrial Information Systems / v.27, no.5, 2022 , pp. 49-59 More about this Journal
Abstract
The SHAPE algorithm has the advantage of being able to shape the pulse spectrum as desired and design it not to distort other characteristics, so it was used in the active sonar pulse design. In this paper, we propose a pulse design using the SHAPE algorithm for a multi-static sonar system to reduce the cross-correlation between frequency-adjacent pulses and prevent the performance degradation of the pulses themselves. The boundary function of the SHAPE algorithm is set to be limited to the pulse bandwidth. As a result of applying the proposed design method to the sinusoidal frequency modulated pulse, the peak cross-correlation level (PCCL), which means the degree of cross-correlation, was reduced by 44.23 dB. Although the PCCL decreased by several tens of dB, no significant change in the ambiguity function was observed, and the integrated sidelobe level (ISL), which means the average value of the side lobe, increased by 11.64 dB.
Keywords
다중상태 능동소나 시스템;SHAPE 알고리즘;송신직접파 간섭 억제;
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Times Cited By KSCI : 1  (Citation Analysis)
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