音響測距 的英文怎麼說

中文拼音 [yīnxiǎng]
音響測距 英文
acoustic surveying
  • : 名詞1. (聲音) sound 2. (消息) news; tidings 3. [物理學] (音質) tone 4. (姓氏) a surname
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
  • 音響 : sound; acoustics; audio; [德國] klang; phon-; phono-; -phone
  • 測距 : range [distance] finding; distance measurement; ranging; stadiometry
  1. The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble

    系統採用電臺的電視伴調頻信號,其中電臺信號與伴信號功率之比基本為10 : 1 ,並且目標散射信號較弱,一般情況下淹沒在雜波和機器熱噪聲之下,採用常規的脈沖檢方法很難對遠離的目標進行檢,而以電臺直達信號作為參考與目標回波信號進行相關檢;系統中信號的相關處理會產生旁瓣,而強目標的旁瓣會影附近的弱目標檢
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