發(fā)布時間：2018-02-21 13:53

  本文關鍵詞： 雷達信號 目標起伏 雷達散射截面 機動目標探測　出處：《計算機仿真》2017年08期 　論文類型：期刊論文

【摘要】：雷達信號是探測和跟蹤運動目標的重要依據(jù),如何準確快速獲取雷達信號已成為現(xiàn)代雷達亟需解決的技術難題。為研究目標信號RCS起伏特性對雷達探測的影響,針對典型起伏目標,運用準靜態(tài)法獲取了目標隨姿態(tài)角起伏的RCS序列,建立目標機動航跡,基于靜態(tài)數(shù)據(jù)庫提取目標機動RCS序列,利用起伏因子構(gòu)建相應機動目標RCS起伏統(tǒng)計模型。最后,依據(jù)雷達回波信號與目標RCS的關系建立檢測模型,研究了一定虛警概率下探測概率,信噪比和起伏因子之間的關系。結(jié)果顯示,在一定信噪比范圍內(nèi),發(fā)現(xiàn)概率與起伏因子成明顯的正比關系,可為利用目標起伏性準確獲取雷達信號,以提高探測概率和精確跟蹤。
[Abstract]:Radar signal is an important basis for detecting and tracking moving target. How to acquire radar signal accurately and quickly has become a technical problem that needs to be solved in modern radar. In order to study the influence of target signal RCS fluctuation characteristics on radar detection, it is necessary to solve this problem. For typical undulating targets, the quasi-static method is used to obtain the RCS sequence with attitude angle fluctuation, the maneuvering track of the target is established, and the maneuvering RCS sequence of the target is extracted based on the static database. The statistical model of RCS fluctuation of maneuvering target is constructed by using the fluctuation factor. Finally, the detection model is established according to the relationship between radar echo signal and target RCS, and the detection probability under a certain false alarm probability is studied. The results show that in a certain range of signal-to-noise ratio (SNR), the probability is directly proportional to the fluctuation factor, and the radar signal can be obtained accurately by using the fluctuation of the target. To improve detection probability and accurate tracking.
【作者單位】： 空軍工程大學防空反導學院;
【基金】：國家自然科學基金資助項目(51372033)
【分類號】：TN957.51

【相似文獻】

相關期刊論文 前10條

1 ;雷達信號及其處理[J];電子科技文摘;2002年08期

2 ;雷達信號及其處理[J];電子科技文摘;2006年04期

3 李坤;;雷達信號及其監(jiān)測研究[J];中國無線電;2006年11期

4 張金玉;;傳輸原因引起的雷達信號故障二例[J];空中交通管理;2009年09期

5 何駿敏;;復雜體制雷達信號的特點分析[J];科技風;2010年16期

6 潘建壽;;，

本文編號：1522069