導(dǎo)彈防御系統(tǒng)中的目標(biāo)綜合識(shí)別模型
Integrated Target Discrimination Model in Missile Defense System
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摘要: 目標(biāo)識(shí)別是導(dǎo)彈防御系統(tǒng)的支撐技術(shù)，本文參考導(dǎo)彈防御系統(tǒng)配置，建立了基于時(shí)空信息序貫融合的綜合識(shí)別數(shù)學(xué)模型，將專家知識(shí)、環(huán)境信息以及測(cè)量信息共同納入綜合識(shí)別流程。在空間域融合中，利用層次分析法度量了各技術(shù)途徑的可靠性，并基于技術(shù)途徑的可靠性和識(shí)別結(jié)果的一致性提出了融合權(quán)重的概念，用于度量各技術(shù)途徑參與融合識(shí)別的重要程度；在時(shí)間域融合中，將D-S證據(jù)理論應(yīng)用于融合識(shí)別結(jié)果的繼承和更新。仿真實(shí)驗(yàn)結(jié)果表明，綜合識(shí)別模型能夠有效融合多個(gè)技術(shù)途徑的局部決策，抑制個(gè)別奇異結(jié)果，具有較好的容錯(cuò)性能。
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關(guān)鍵詞:
- 目標(biāo)識(shí)別;導(dǎo)彈防御;信息融合
Abstract: Target discrimination is a key technique in missile defense system, and after analyzing the defense system configuration, an integrated target discrimination mathematical model based on recursive temporal-spatial data fusion is performed, which brings the expert knowledge, environmental information and measure information into the integrated discrimination flow. During spatial fusion process, the reliability of discrimination approach is measured by Analytical Hierarchy Process (AHP), and the concept of fusion weight is introduced to measure the value of discrimination approach for participating in fusion, which is determined by reliability of discrimination approach and consensus among sensors results. During temporal fusion process, the fusion discrimination result is inherited and updated by Dempster-Shafer theory. Simulation results show that the integrated discrimination model can fuse the local decision from discrimination approaches effectively, restrain the influence of singularity and tolerate the erro=、r of discrimination. -
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