| ANALYSIS AND PROCESSING OF LMF－COSTAS STEPPED FREQUENCY RADAR SIGNAL |
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| 作者姓名： | MuShanxiang JiXiaoli LiMing LiXingguo |
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| 作者单位： | School of Electron. Eng. & Optoelectronic Tech.，Nanjing Univ. of Sci. & Tech.，Nanjing 210094 |
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| 摘 要： | Linear Modulated Frequency (LMF) Costas Stepped Frequency Radar (SFR) signal is introduced. Its ambiguity function is derived and analyzed in detail and its feasibility is validated in theory. The scheme of the proposed signal processing is also presented. The results of theoretic analysis and simulation show that, by using the proposed signal and increasing the bandwidth of the total stepped frequency, the ambiguity sidelobe is well suppressed and the range-velocity coupling in the stepped frequency radar is also greatly weakened.
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| 关 键 词： | 雷达 线形调制频率 LMF 多普勒效应 SFR信号 |
| 收稿时间： | 4 July 2002 |
Analysis and processing of LMF-Costas Stepped Frequency Radar signal |
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| MuShanxiang JiXiaoli LiMing LiXingguo.Analysis and processing of LMF-Costas Stepped Frequency Radar signal[J].Journal of Electronics,2003,20(6):407-413. |
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| Authors: | Mu Shanxiang Ji Xiaoli Li Ming Li Xingguo |
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| Affiliation: | School of Electron. Eng. & Optoelectronic Tech., Nanjing Univ. of Sci. & Tech., Nanjing 210094 |
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| Abstract: | Linear Modulated Frequency (LMF) Costas Stepped Frequency Radar (SFR.) signal is introduced. Its ambiguity function is derived and analyzed in detail and its feasibility is validated in theory. The scheme of the proposed signal processing is also presented. The results of theoretic analysis and simulation show that, by using the proposed signal and increasing the bandwidth of the total stepped frequency, the ambiguity sidelobe is well suppressed and the range-velocity coupling in the stepped frequency radar is also greatly weakened. |
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| Keywords: | Stepped frequency Linear Modulated Frequency (LMF) Costas frequency coding Ambiguity function Doppler influence |
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