forward echo 中文意思是什麼
forward echo
解釋
前向回波-
Higher capabilities were put forward for detection, identification and anti - interference of torpedo in future naval battle. compared with the narrow - band processing, wide - band processing is a new direction for underwater signal processing for its advantages including abundant information of wide - band echo and little correlation of reverberation
未來海戰對魚雷在探測目標、識別目標和反對抗能力方面提出了更高的要求，而寬頻帶回波信號具有攜帶目標信息量大，混響背景相關性弱，利於檢測、識別目標等優點，因此自導系統發展的方向是寬頻帶自導。 -
First of all, this paper introduces the whole design project and interrelated knowledge about non - destructive detection, ultrasonic detection, and phased - array ultrasonic detection then the paper depicts the principle of phased - array focus and abstracts a set of math model and feasible arithmetic on the base of the real parameter of the system. put forward several problems that exist during the course of system development and program. introduce some measures of distinguish that are often used in non - destructive detecting and echo wave crest
然後在文中以較大的篇幅，描述了相控陣聚焦的原理，並根據該系統的實際參數，抽象出一套數學模型和可行的演算法，在此基礎上提出了在系統開發過程及編程實現過程中存在的一些問題；介紹了在無損檢測中缺陷的分類和對回波峰常用的識別方法，詳述了系統開發過程中使用的其中一種識別方法，即判別是否存在缺陷的演算法，並給出實現之的部分核心程序；詳述主控程序如何控制各部分並協調各相關軟體的工作，使整個系統發揮最高效能，並給出主要設計框圖和程序。
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