頁籤選單縮合
題 名 | Detection for High Resolution Radars=高解析度雷達的偵測 |
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作 者 | 柳政龍; 李學智; | 書刊名 | 中國工程學刊 |
卷 期 | 21:6 1998.11[民87.11] |
頁 次 | 頁731-740 |
分類號 | 440.98 |
關鍵詞 | 高解析度雷達; 距離剖面; 偵測機率; High resolution radar; Range profile; Probability of detection; |
語 文 | 英文(English) |
中文摘要 | In this paper we discuss detection problems for a high resolution radar. Fluctuation in the target radar cross section usually decreases the probability of detection. However, through integration of cells within range profiles of a high resolution radar, variation of the integrated magnitude with respect to the change of carrier frequency and target aspect becomes much smaller, and this is helpful for improving the probability of detection. Two detection algorithms, the cell integration method and the correlation method, for a high resolution radar are proposed, and their detection performances are compared with that obtained by a conventional low resolution radar. Some theoretical formulations are devloped. simulation results show the effectiveness of the proposed algorithms. |
英文摘要 | 本文中討論了高解析度雷達的偵測問題。由於物體的雷達散射截面積對頻率及方 位角的變動特性常導致目標物偵測機率的降低;然而,若將距離剖面距離區間做積分,由於 其積分值對頻率及方位角的變動的變化較緩慢,故可以改善偵測機率。我們提出了兩種偵測 方法,分別是距離區間積分偵測法及距離區間疊積偵測法,並推導了其理論的公式。利用模 擬的方式與理論作驗證,並將此兩種方法的偵測效能與傳統低解析度雷達的方法作了比較, 可以發現利用高解析度雷達的偵測法則可以提高偵測的機率。 |
本系統中英文摘要資訊取自各篇刊載內容。