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terrain following radar 地形調整雷達〔飛機或導彈上裝設的一種雷達系統,能根據地形...

terramare

Based on mono - pulse radar system and the analysis of terrain echoes , a geometrical model of air to ground ranging is constituted . by using the signals received from the sum and difference channels of terrain follow radar , a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained . according to the characteristics of the echoes , the theory and method of pass zero detection of difference channel and its applications are discussed in detail 針對一維單脈沖雷達體制,分析了地形目標回波特性;建立了地形跟隨雷達空地測距的幾何關系;利用雷達收發信號,導出了地形跟隨雷達和差接收通道的回波信號表達式,進行了波形仿真,得到了地形跟隨雷達的地面散射產生回波在時域中的特性;根據和差回波特性,闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用,并給出了真實雷達對外輻射試驗的結果,驗證了文中的仿真。

The analysis , computation , designs and experiments made in this paper are important for implementation of terrain follow radar 本文所作的分析、計算、設計與試驗,均與工程實踐緊密結合,對地形跟隨雷達的工程化研制有一定的參考意義。

This article gives a brief description about the structure , actuality of research and development of terrain follow radar 本文概要介紹了地形跟隨雷達的系統構成、研究現狀和發展趨勢。