Research of spectral characteristics and autocorrelation function of nonlinear frequency modulated radar signal

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Authors

  • Vu Chi Thanh (Corresponding Author) Institute of Radar, Academy of Military Science and Technology
  • Bui Chi Thanh Học viện Phòng không - Không quân
  • Ta Van Tuan Học viện Phòng không - Không quân
  • Phung Ngoc Anh Học viện Phòng không - Không quân

DOI:

https://doi.org/10.54939/1859-1043.j.mst.FEE.2022.129-137

Keywords:

Nonlinear frequency modulation; Linear frequency modulation; Manipulator phase modulation; Autocorrelation function; Wideband signal; Signal spectral characteristics.

Abstract

The content of the article analyzes the limitations in wideband signal processing when increasing the modulation frequency band width of the emitted signal in order to improve the performance of radar systems. On that basis, a mathematical expression is proposed for the nonlinear frequency modulation (NLFM) function of the emitted signal. The results of surveying the spectral characteristics and autocorrelation function of the NLFM signal with the proposed modulation function show the advantages of this signal compared to the linear frequency modulation signal (LFM) such as overcoming the multi-value of measuring target distances, increasing anti-interference ability for modern radar systems without high requirements on hardware configuration of the digital signal processing system.

References

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Published

23-12-2022

How to Cite

Vũ Chí Thanh, Bùi Chí Thanh, Tạ Văn Tuấn, and Phùng Ngọc Anh. “Research of Spectral Characteristics and Autocorrelation Function of Nonlinear Frequency Modulated Radar Signal”. Journal of Military Science and Technology, no. FEE, Dec. 2022, pp. 129-37, doi:10.54939/1859-1043.j.mst.FEE.2022.129-137.

Issue

No. FEE (2022)

Section

Research Articles