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目標追蹤之預測與誤差修正 胡澄清、鍾翼能

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目標追蹤之預測與誤差修正 胡澄清、鍾翼能

E-mail: [email protected]

摘 要

在雷達追蹤系統中,由於外在複雜環境及雜訊干擾的因素,使得雷達追蹤感測器在所偵測到的訊號中,除了正確的目標量 測值外,往往也包含著各種雜訊,進而引起追蹤上的誤差,減低系統的效能。 本論文針對不同功率的雜訊,應用本論文中 所提之追蹤技術,去完成目標追蹤的預測值與誤差修正,以資料相關結合和適應性擴展型卡門濾波器技術,配合

著One-Step Conditional Maximum Likelihood技術,由這樣的方式,可以預估目標變速度運動所產生的誤差,並且減少系統 作不必要的運算,使系統獲得最佳的效能。

關鍵詞 : 資料相關結合 ; 擴展型卡門濾波器 ; 變速度運動 目錄

目錄 封面內頁 簽名頁 博碩士論文授權書………iii 中文摘要………

………iv 英文摘要………v 誌謝………

………vi 目錄………vii 圖目錄………

………ix 表目錄………xiv 第一章 緒  論 ………1 1.1 研究動機與背景 ………1 1.2 研 究方法與步驟 ………2 1.3 論文結構 ………3 第二章 雷達系統與濾波器之介紹………5 2.1雷達系統的原理與應用………

……5 2.2 濾波器原理………14 2.3卡門濾波器之系統模式定義 ………

…………16 2.3.1卡門濾波器之理論推導 ………18 2.3.2擴展型卡門濾波器 ………

………22 第三章 適應性追蹤理論 ………25 3.1 簡介………

………25 3.2多目標追蹤程序 ………25 3.2.1追蹤起始 ………

………26 3.2.2追蹤相互關係 ………26 3.2.3追蹤更新 ………

………27 3.2.4軌跡刪除 ………27 3.3 數學模式的建立…………

………28 3.4 變速度追蹤理論………31 第四章 相關資料結合技 術 ………35 4.1資料相關結合 ………35 4.2 PDA理論 ……

………36 4.3 One-step conditional maximum likelihood理論 ………42 第五章 電腦模擬 分析與討論………45 5.1定速度雙目標追蹤模擬分析 ………46 5.2變速度雙 目標追蹤模擬分析 ………65 第六章 結論………101 參考 文獻………102

參考文獻

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參考文獻

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