FMCW ice detection radar signal processing based on improved spectrum estimation algorithm

Yibo Song; Yinke Dou; Yuchen Wang; Guangyu Zuo; Jingxue Guo; Zidong Zhang

doi:10.1117/12.3033088

13 June 2024 FMCW ice detection radar signal processing based on improved spectrum estimation algorithm

Yibo Song, Yinke Dou, Yuchen Wang, Guangyu Zuo, Jingxue Guo, Zidong Zhang

Proceedings Volume 13180, International Conference on Image, Signal Processing, and Pattern Recognition (ISPP 2024); 131801N (2024) https://doi.org/10.1117/12.3033088
Event: International Conference on Image, Signal Processing, and Pattern Recognition (ISPP 2024), 2024, Guangzhou, China

Abstract

The Antarctic ice sheet is an important part of the Earth system and plays a key role in the global climate system. The frequency modulated continuous wave (FMCW) radar can be used to obtain the changes of the transmitted signals at different layers inside the ice sheet, and then the information of the isochronous layers of the ice sheet can be extracted and the shallow accumulation rate can be deduced. In this paper, an improved spectrum estimation algorithm is proposed, which combines FFT (Fast Fourier Transform) and Chirp-Z (CZT transform, linear frequency modulation transform) to estimate the spectrum of the simulated radar system's difference frequency signals, effectively improving the radar detection accuracy, and verifying the effectiveness and rationality of the algorithm, so that the isochronous layers can be extracted on a larger spatial scale. In China's 36th Antarctic scientific expedition, FMCW radar was used to obtain the distribution of shallow isochronous layers in East Antarctica from Zhongshan Station to Taishan Station. In this paper, taking a typical area as an example, the algorithm was used to obtain the stratification and structure information of the ice sheet on a large-scale space, which provides important data support for the calculation of large-scale accumulation rate and flow history in the Antarctic region.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yibo Song, Yinke Dou, Yuchen Wang, Guangyu Zuo, Jingxue Guo, and Zidong Zhang "FMCW ice detection radar signal processing based on improved spectrum estimation algorithm", Proc. SPIE 13180, International Conference on Image, Signal Processing, and Pattern Recognition (ISPP 2024), 131801N (13 June 2024); https://doi.org/10.1117/12.3033088

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KEYWORDS

Ice

Detection and tracking algorithms

Radar signal processing

Signal detection

Radar sensor technology

Radar

Computer simulations

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