echo pattern 中文意思是什麼
echo pattern
解釋
回聲圖形,回波圖形-
It is now possible not only to locate a shoal but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.
不僅有可能測定魚群的位置，而且可以根據魚群回聲的圖象區分出鯡魚，鱈魚或其他人們所熟悉的魚。 -
The paper includes four sections followed here : the first section studies the modeling of signals of pulse doppler radar seeker, and establishes a radar signal simulation model, including radar emitting signal model, receiving signal model, receiving echo signal model, clutter model, noise model, sum channel directional pattern of antenna model, difference channel directional pattern of antenna model, sheltering model, rcs model, glint noise model, etc. the second section studies signal processing of pulse doppler radar seeker, and establishes radar signal processing mathematical model and data processing mathematical model for simulation, including windowing, doppler filtering, envelope demodulation, pdi, cfar, centering, velocity tracking, angle tracking, a - b filtering, etc. the third section studies the modeling of modified proportion guiding, and establishes guiding model, then dynamic simulation results is provided
論文的主要工作包括四部分：第一部分研究了脈沖多普勒雷達導引頭的信號建模問題，建立了雷達信號模型，主要包括：發射信號模型、接收信號模型、目標回波信號模型、雜波模型、噪聲模型、和差通道天線方向圖模型、遮擋因子模型、接收機噪聲模型、目標雷達截面積統計性模型、目標角閃爍模型等。第二部分研究了脈沖多普勒雷達導引頭的信號處理模式，建立了信號和數據處理模型，主要包括：加窗和多普勒濾波、包絡檢波、檢波后積累、頻域cfar處理、速度定心、速度跟蹤、角跟蹤、 ?濾波等，然後給出了信號處理流程。 -
The signal by way of the interior several and analogy technology processing, by the sine wave pattern actuation loudspeaker, and in constructs the vice - sound volume control and the echo function, richer is had the sound the spatial feeling
信號經由內部的數位及類比技術處理，以正弦波型式驅動喇叭，並內建副音音量控制及迴音功能，令聲音更豐富更有空間感。 -
The signal by way of the interior several and analogy technology processing, by the sine wave pattern actuation loudspeaker, and in constructs the echo function, may have the sound the spatial feeling
信號經由內部的數位及類比技術處理，以正弦波型式驅動喇叭，並內建迴音功能，可令聲音更有空間感。 -
The narrative pattern in mao dun ' s novels and their contemporary echo effects
論茅盾小說的敘事範式及當代回響
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