基于盲數(shù)理論的空中目標(biāo)粗分類
Rough Classification of Air-Target with the Theory of Blind Number
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摘要: 該文首先總結(jié)了直升機目標(biāo)雷達探測和識別的難點，然后分析了直升機目標(biāo)雷達回波信號頻譜調(diào)制特征，給出了直升機回波頻譜寬度的估算式。以頻譜寬度為特征，引入盲數(shù)理論，對直升機和固定翼飛機進行初步分類，并給出了仿真試驗結(jié)果。試驗結(jié)果證明了該文的理論分析和分類算法。
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關(guān)鍵詞:
- 空中目標(biāo)分類; 直升機; 多普勒頻譜; 盲數(shù)
Abstract: This paper first summarizes the difficulty in detecting and identifying helicopter, then analysis the spectrum signature of radar echo signal from helicopter, and estimates the width of the spectrum modulated by helicopter blades. The author uses the width of the spectrum and applies the theory of blind number to a rough classification of helicopter and fixed-wing aircraft. The author provides the result of emulation, and the result proves the effectiveness of theoretic analyses and the algorithm of classification. -
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