Design and analysis of NLFM-Costas RF stealth radar signal

被引：0

作者：

Fu Y.-J. ^{[1
]}

Li Y. ^{[1
]}

Xu L.-Q. ^{[1
]}

Zhang K.-H. ^{[1
]}

机构：

[1] Department of Electronics Engineering, Northwestern Polytechnical University, Xi'an

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2019年 / 49卷 / 03期

关键词：

Ambiguity function; Autocorrelation function; Information processing technology; Integral sidelobe level(ISL); Intercept factor; Peak sidelobe level(PSL); RF stealth;

D O I：

10.13229/j.cnki.jdxbgxb20180003

中图分类号：

学科分类号：

摘要：

This paper presents the Nonlinear Frequency Modulation (NLFM)-Costas hybrid signal with the complex methods of interpulse Costas frequency coded modulation and intrapulse Nonlinear Frequency Modulation (NLFM). The signal construction is analyzed in theory and four critical parameters are obtained, such as Power Spectrum Density (PSD), ambiguity function, Peak Sidelobe Level (PSL) and Integral Sidelobe Level (ISL). The experimental results show that the NLFM-Costas hybrid signal has the "thumbtack" ambiguity function and better autocorrelation property. The NLFM-Costas signal can achieve better RF stealth performance than NLFM signal or Costas signal or LFM-Costas hybrid signal and it has good application prospects in modern battlefield environment. © 2019, Jilin University Press. All right reserved.

引用

页码：994 / 999

页数：5

共 14 条

[1]

Lynch D.A., Introduction to RF Stealth, pp. 23-25, (2004)

[2]

Schleher D.C., LPI radar: fact or fiction, IEEE Aerospace and Electronic Systems Magazine, 21, 5, pp. 3-6, (2006)

[3]

Schrick G., Wiley R.G., Interception of LPI radar signals, IEEE 1990 International Radar Conference, pp. 108-111, (1990)

[4]

Costas J.P., A study of a class of detection waveforms having nearly ideal range-doppler ambiguity properties, Proceedings of the IEEE, 72, 8, pp. 996-1009, (1984)

[5]

Levanon N., Mozeson E., Modified costas signal, IEEE Transaction on Aerospace and Electronic Systems, 40, 3, pp. 946-953, (2004)

[6]

Li Y.-X., Zhou X.-M., A new FSK/PSK radar signal characterized with LPI, Signal Processing, 18, 2, pp. 177-179, (2002)

[7]

Yang H.-B., Zhou J.-J., Wang F., Et al., Design and analysis of Costas/PSK RF stealth signal waveform, IEEE CIE International Conference on Radar, pp. 1247-1250, (2011)

[8]

Touati N., Tatkeu C., Chonavel T., Et al., Phase coded Costas signals for ambiguity function improvement and grating lobes suppression, IEEE 78th Vehicular Technology Conference, pp. 1-5, (2013)

[9]

Liu F., Mu S.-X., Lv W.-H., Et al., MIMO SAR waveform separation based on Costas-LFM signal and co-arrays for maritime surveillance, IET Journals & Magazines, 26, 1, pp. 211-217, (2017)

[10]

Luo M.-F., Hao Z.-M., Wang Q., Signal processing technique for LFM/FSK hybrid LPI waveform, Journal of University of Electronic Science and Technology of China, 46, 2, pp. 335-339, (2017)

← 1 2 →