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A cancelling method based on Nth-order SSC algorithm for solving active cancellation problems
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DOI：10.1016/j.ast.2017.09.038.png)
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摘要
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In this paper, a mathematical model of cancelling signal on the basis of Nth-order SSC (Spectrum Spread and Compression) algorithm is established for the Nonlinear Frequency Modulated (NLFM) signal. The explicit expressions of these cancelling signals are derived. Simulation results show that the cancelling signal could reduce the target gain when the time delay is relatively large. The proposed method is compared with the existing methods in the literature and satisfactory results obtained. Comparison between active cancellation technology and passive stealth technology is implemented in detail. The discussions demonstrate that active cancellation technology is more applicable to solve the low-frequency stealth problem. (C) 2017 Elsevier Masson SAS. All rights reserved.
Keyword:
Nonlinear frequency modulation (NLFM)
Spectrum spread and compression (SSC)
algorithm
Jamming signal
Cancelling signal
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5.8
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1.0W
被引数:
3.0W
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