ANALYSIS AND PROCESSING OF LMF-COSTAS STEPPED FREQUENCY RADAR SIGNAL  

ANALYSIS AND PROCESSING OF LMF-COSTAS STEPPED FREQUENCY RADAR SIGNAL

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作  者:Mu Shanxiang Ji Xiaoli Li Ming Li Xingguo (School of Electron. Eng. & Optoelectronic Tech., Nanjing Univ. of Sci. & Tech., Nanjing 210094) 

出  处:《Journal of Electronics(China)》2003年第6期407-413,共7页电子科学学刊(英文版)

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.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.

关 键 词:Stepped frequency Linear Modulated Frequency (LMF) Costas frequency coding Ambiguity function Doppler influence 

分 类 号:TN957.51[电子电信—信号与信息处理]

 

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