雷達工作方式 的英文怎麼說
中文拼音 [léidágōngzuòfāngshì]
雷達工作方式
英文
radar operation modes- 雷 : 1. (雲層放電時發出的響聲) thunder 2. (軍事上用的爆炸武器) mine 3. (姓氏) a surname
- 達 : Ⅰ動詞1 (暢通) extend 2 (達到) reach; attain; amount to 3 (通曉; 明白) understand thoroughly...
- 工 : Ⅰ名詞1 (工人和工人階級) worker; workman; the working class 2 (工作; 生產勞動) work; labour 3 ...
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 雷達 : [訊] radar (縮自 radio detection and ranging)
- 方式 : way; fashion; pattern
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Abstract : this paper describes the working principle of drillhole radar and recommends two working patterns : single - drillhole reflection and crosshole tomographic imaging. the technique was used to make lithologic evaluation of deep strata and detect geological anomalous bodies with obvious effects obtained
文摘:闡述了鉆孔雷達的工作原理,介紹了單孔反射和跨孔層析成像2種工作方式,並將其用於深部巖層巖性評價和地質異常體探測,效果顯著。A result is acquired that the time correlation characteristics of the fsk / psk radar clutter is invariability, but the space correlation characteristics is enhanced
在第五章中,參考地面搜索雷達的工作方式,對fsk / psk信號的雷達回波進行模擬,並給出模擬結果。The adaptive management problems of phased array radar resources are studied systematically. the main attributions are as follows : 1. firstly, the development of aewr ( airborne early warning radar ) and the operation modes of phased array radar are briefly introduced. the basic idea of the adaptive management of radar resources is expatiated according to its characteristic
本文對相控陣雷達資源自適應調度問題進行了比較系統、深入的研究,主要工作如下: 1 、簡要介紹了當前國內外機載預警相控陣雷達的發展現狀以及它的基本工作方式,並結合相控陣雷達的特點闡述了其資源自適應調度的基本思路。Ais works on the marine vhf, use the sotdma ( self organized time division multiple access ) data chain protocol to transfer data of ships. the ais can help the limits of the current services, and decrease the collide case of ships, and improve the value of the safe action in marine, and make the content of the radar and the vts more stronger
船舶自動識別系統( automaticidentificationsystem ,簡稱ais )工作在海上vhf頻段,運用sotdma方式發射船舶數據,具有補充現有船舶導航存在的缺陷,減少船舶碰撞事故;提高搜救船舶海上救助的速度;增強雷達、船舶交通管理系統vts的功能。The main task of this dissertation is to model and simulate a monopulse radar system. in the end, we design a set of software platforms of a monopulse radar system, which would be a living, economical and convenient test platform for radar electronic warfare. firstly, this dissertation studies the model of radar signal environment
本文的主要工作是對單脈沖雷達系統進行計算機建模和模擬,最終目的是開發出一套模擬單脈沖雷達系統工作模式的軟體模擬平臺,為雷達電子戰提供一個逼真、快捷、高效、經濟和方便的試驗平臺。Being a very important equipment for navigation, digital navigating radar takes advantages to the traditional radar in many aspects, such as better performance, more functions and more convenient operation. with the rapid development of embedded system, this dissertation discusses the design and implementation of the digital navigating radar based on embedded system
數字化船載雷達是艦船導航的重要工具,相對于傳統雷達它具有性能好、功能全、操作方便等優勢,在嵌入式系統技術高速發展的背景下,本文提出並研究設計了一種基於嵌入式系統技術的數字化船載雷達系統。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 method can describe the radar intelligence network survivability quantitatively by applying the radar coefficients, the elements ' survival probability based on some suppositions that the command level and intelligence flow in the radar intelligence network are similar to the tree structure and the elements can only belong to two states, i. e. work normally or lose efficiency wholly
該方法利用雷達情報網在指揮層次和信息流向呈現樹型的特點,在功能單元的工作狀態上採用「工作正常、完全失效」二態模式評估模型的基礎上,運用雷達效能因子和各功能單元生存概率,給出了雷達情報網生存能力的一個量化描述。This radar database system fits for china ' s radar network using object - oriented programming design method, recording some important parameters of radar data : the longitude, latitude of radar station, radar type, radar wavelength, radar data format, weather kind ( kind of intensity radar echo, schema of velocity radar, echo shape ) embodying in the radar data, etc. it also records the weather course information embodying in a series of relational radar data : the beginning time of weather course, the ending time of weather course, weather type, etc and the disk information, including recording time, recording contents, recording data number and weather type, etc. above all, this system realizes some basic operational processing : adding, deletion, updating, query of records and also some assistant functions : exportation, data transformation, displaying, backing up of data
該數據庫系統採用面向對象程序設計方法,用visualc + + 6 . 0作為應用程序的前端開發工具,用microsoftaccess2000做數據庫,不僅實現了對雷達基數據信息的一些基本操作:記錄信息添加、刪除、修改、查詢,還實現了處理、分析雷達基數據所需的一些操作:數據導出,數據格式轉換、數據回顯(圖像方式和動畫方式) 、數據壓縮、備份等,另外針對日前雷達臺站存儲雷達數據的現狀,還實現了對存儲光盤的管理。This dissertation is based on the works of former researchers, and we are concerned with the principles, approaches, performance properties and the design rules of radar cfar detection and distributed radar cfar detection systems under complicated environments ( such as interference, clutter and varied environments with non - identically detect conditions ). the main contributions of this paper are summarized as follows : ( 1 ) the basic results on radar cfar detection are reviewed
本文的主要宗旨是在前人研究成果的基礎上,面向實際應用的需求,研究在各種接近實際工作條件的復雜環境(干擾、雜波,以及變化與非一致的的檢測條件)下,雷達cfar檢測與分散式cfar檢測的理論、方法、性能特點與設計思路。In the thesis, based on design and implementation of the two signal processing system of different requirement, multi - dsp processor structure, dsp - pci interface, system control logic, pci device driver program, user application program are researched. the main content is list as follows : 1 ) according to the lfmcw radar signal processing algorithm, a signal processing system based on pc104 - plus bus is developed
本文通過對以上兩種雷達信號處理機的設計開發過程,研究了採用多片dsp信號處理器組建并行處理模塊實現信號處理演算法的方法,利用pci總線實現處理機數據傳輸介面,設備驅動程序和控制界面軟體開發,實現信號處理機數據傳輸控制等幾個方面的內容,主要工作如下: 1 )針對線性調頻連續波雷達信號處理演算法,完成了基於pc104 - plus總線的嵌入式信號處理板的設計、製作以及調試。According to the reciprocal characteristic of dual - mcde reciprocal ferrite phase shifters, the antenna only requires to provide the sa : lle beams of operation between the trtinsmit and receive beams. in addition, 1he phased shifter can operate in various polarizations such as linear polarization or circular polarization, which is adiipted to the development of modern ra ( 1ar technologies
對電掃描相控陣天線來說,雙模互易式鐵氧體移相器的互易特性可使收、發在同一特定波束位置上工作;此外,雙模互易鐵氧體移相器可以在線極化、圓極化等多種極化方式下工作,適應了現代雷達技術的發展。Firstly, this paper summarizes modern weaponry stealth technology at home and abroad, and lays special emphasis on analyzing stealth problem of cruise missile ’ s guidance head cover, aerocraft radar canopy and other privileged sites. secondly it makes a research on related theories of transparent metallic mesh that applied to missile ’ s guidance head cover and aerocraft radar canopy, and deduces relational expression between transparent metallic mesh structural parameters and radar wave - shielding efficiency, infrared transmitting. we use laser direct writing technique to fabricate a metallic mesh ( dimension : 70mm 70mm ; line width : 5 m ; period : 350 m ) on glass surface, then do experiment to test radar wave - shielding of metallic mesh via radar transmitting and receiving device
本文首先綜述了國內外現代武器系統隱身技術方法;重點對巡航導彈導引頭罩和飛機雷達艙罩等特殊部位的隱身問題進行了研究,研究了金屬網柵用於導彈頭罩和飛機雷達艙罩隱身的相關理論,推導了金屬網柵結構參數對雷達波屏蔽效率和透紅外關系式;用激光直寫工藝,在玻璃表面上製作了一塊面積為70mm 70mm ,線寬為5 m ,線周期為350 m的金屬網柵;在實驗室里用雷達發射和接收裝置測試了網柵對雷達波的屏蔽實驗;認為利用金屬網柵技術對雷達波具有一定的屏蔽作用,而且不影響精確制導的紅外線高效透過。Considering that : ( 1 ) radar can achieve its basic application of collision avoidance and warning with the only function of ranging ; ( 2 ) under high speed conditions, radar should have lager effective range than that under slow speed, we designed a new easily realizable automotive anticollision radar, which employs centimeter wave and square pulse amplitude modulation
考慮到: ( 1 )核心的測距功能實現以後,雷達已經能夠完成基本的防撞預警; ( 2 )在汽車高速運行的情況下,防撞雷達的最小可測距范圍和最大作用距離應比低速狀態下大。本文採用了技術成熟,易於工程實現的厘米波脈沖雷達,以單波束輻射的方式測距。This study is supposed that the fsk / psk signal is applied to ground - based searching radar, and the radar video returns which are modeled and simulated consist of target returns and clutter returns
本文研究的雷達視頻回波信號,是假設採用地面搜索雷達的工作方式時所產生的回波信號,包括對目標信號和雜波信號的建模與模擬。This thesis mainly focuses on nonlinear filter and data fusion problems, the main results are as follows : 1. this thesis presents fundamental theory, position model and error analyses of non - cooperative bistatic radar positioning system
本文從非線性濾波演算法和數據融合兩個方面進行研究,主要工作成果如下: 1 、介紹了非合作式雙基雷達定位的基本原理,定位模型以及誤差分析方法。5. on the aspect of spaceborne sar simulation, after thoroughly analyzing on the representative spaceborne sar simulator, we grasp the spaceborne sar operation procedure, and present a system simulation approach based on radar signal flow
在星載合成孔徑雷達模擬方面,論文在其它星載雷達模擬方法分析基礎上,把握星載合成孔徑雷達的工作流程,提出了基於雷達實際工作方式的系統模擬方案。In this dissertation, we make a deep research on the trajectory character and attitude character of the radar target in the midcourse. much work has been done to simulate the trajectory and attitude, we get the attitude parameter of radar target by coordinate transferring
本文深入研究了雷達目標中段的軌道特性和姿態特徵,在彈道導彈的彈道和姿態模擬方面做了大量的工作,通過坐標轉換的方式完成了對目標姿態參數的計算。1 in the research of design of radar waveform, one kind of hybrid radar waveform obtained by combining the chirp waveform with the non - periodic pseudorandom sequences is discussed. through the theoretical analysis and computer simulation, several main characteristics of this kinds of hybrid waveforms are discussed, such as the ambiguity function, ambiguity graph, the spectrum, the weighting methods, the response of the processing filter and the low probability of interception. those are showing the effectiveness of the new hybrid waveforms on the performance of high resolution and low probability of interception
作者在以下幾個方面的研究工作中取得了進展及創新: 1 、在雷達波形設計中,介紹了一類新的線性調頻信號與非周期隨機編碼信號相結合的組合波形的組合形式,通過理論分析和大量的計算機模擬研究了這類組合波形的模糊函數(圖) 、頻譜特性、多普勒頻移特性、加權輸出特性、低截獲等方面的特點,證明了新型的組合波形在高分辨、低截獲等方面的有效性。Aimed at the civil aviation airport, this warning system for air traffic control automation system includes amalgamation process of multi - radar data , warning process of flight conflict and low height, altogether with conflict display terminal. the theory and method about programming of all these units are told in detail in this article, and added to that is method of processing data with two networks and between two computers, master machine and slave one
在本文中,將對這個告警系統中的多雷達數據融合處理單元、飛行沖突和低高度告警處理單元,以及沖突顯示終端的系統原理、軟體實現的方法、功能等作具體的闡述。另外,還將講述到整個空中交通管制自動化系統中雙機、雙網工作模式的實現。分享友人