dynamic centering 中文意思是什麼
dynamic centering
解釋
動態中心調整-
In addition, the paper also analyses the feasibility of implementing information management and suggests that systematic method should be used to set up a dynamic information portal with level and vertical combination based on information management, providing more supports for e - government affairs to better serve the public in the environment of knowledge economy. centering on the construction question of government ' s information portal, the paper is divided into four parts. the first part is on government ' s information portal website construction, definitions of some basic concepts and the current situation of government ' s
圍繞政府信息門戶網站的建設問題，論文分為五個部分，一、政府信息門戶網站建設研究現狀，明確一些基本概念的定義和政府信息門戶網站建設的現狀;二、政府信息門戶網站建設實施知識管理的意義，分析了政府信息門戶實施知識管理的必要性和可行性;三、政府信息門戶網站建設實施知識管理的條件，指出了實施知識管理的四個條件;四、政府信息門戶網站建設方案設計規劃;五、政府信息門戶網站建設系統實施。 -
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。
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