Research on Combination Waveform Design Based on Hyperbolic Frequency Modulation

JIA Yaojun; CAI Zhiming; WANG Pingbo

doi:10.11999/JEIT221385

Volume 45 Issue 12

Dec. 2023

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JIA Yaojun, CAI Zhiming, WANG Pingbo. Research on Combination Waveform Design Based on Hyperbolic Frequency Modulation[J]. Journal of Electronics & Information Technology, 2023, 45(12): 4352-4360. doi: 10.11999/JEIT221385

Citation:

JIA Yaojun, CAI Zhiming, WANG Pingbo. Research on Combination Waveform Design Based on Hyperbolic Frequency Modulation[J]. Journal of Electronics & Information Technology, 2023, 45(12): 4352-4360. doi: 10.11999/JEIT221385

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Research on Combination Waveform Design Based on Hyperbolic Frequency Modulation

doi: 10.11999/JEIT221385

Electronic Engineering College, Naval University of Engineering, Wuhan 430000, China

Received Date: 2022-11-04
Rev Recd Date: 2023-06-07

Available Online: 2023-06-19

Publish Date: 2023-12-26

Abstract

Abstract

The single frequency or modulated frequency waveform employed in active Sound Navigation and Ranging (SONAR) systems yields inferior range or velocity resolution. This deficiency impairs signal detection and estimation in reverberation background. Previous work demonstrates that “V” and “W” type Hyperbolic Frequency Modulation (HFM) combination waveforms substantially enhance range–velocity resolution while simultaneously reducing reverberation. The W-HFM waveform serves as an effective solution to the false-target problem inherent in the V-HFM waveform when applied to multiple-target scenarios. However, the complex design and extensive computation required pose considerable challenges. Thus, the ridge slope equation of HFM combination waveforms is derived to optimize their design and application. Furthermore, the minimum no false alarm distance index of the V-HFM waveform is proposed, and its applicability in multiple-target scenarios is analyzed. Additionally, an optimized waveform design scheme is proposed, using the typical W-HFM waveform as an example, which can serve as a guide for engineering applications. Tank experimental data reveal that the HFM combination waveform achieves high range–velocity resolution, reverberation is reduced by more than 5 dB, and the W-HFM waveform suppresses false target interference.
- Active sonar,
- Waveform design,
- Hyperbolic Frequency Modulation (HFM) combination waveform,
- V-HFM,
- W-HFM

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References(18)

References

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