導彈防御系統中的目標綜合識別模型
Integrated Target Discrimination Model in Missile Defense System
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摘要: 目標識別是導彈防御系統的支撐技術，本文參考導彈防御系統配置，建立了基于時空信息序貫融合的綜合識別數學模型，將專家知識、環(huán)境信息以及測量信息共同納入綜合識別流程。在空間域融合中，利用層次分析法度量了各技術途徑的可靠性，并基于技術途徑的可靠性和識別結果的一致性提出了融合權重的概念，用于度量各技術途徑參與融合識別的重要程度；在時間域融合中，將D-S證據理論應用于融合識別結果的繼承和更新。仿真實驗結果表明，綜合識別模型能夠有效融合多個技術途徑的局部決策，抑制個別奇異結果，具有較好的容錯性能。
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關鍵詞:
- 目標識別;導彈防御;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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