pulse radar system 中文意思是什麼
pulse radar system
解釋
脈沖雷達系統-
Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail
針對一維單脈沖雷達體制，分析了地形目標回波特性；建立了地形跟隨雷達空地測距的幾何關系；利用雷達收發信號，導出了地形跟隨雷達和差接收通道的回波信號表達式，進行了波形模擬，得到了地形跟隨雷達的地面散射產生回波在時域中的特性；根據和差回波特性，闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用，並給出了真實雷達對外輻射試驗的結果，驗證了文中的模擬。 -
The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering
本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。 -
This dissertation mainly studies the hardware system realization of the radar multi - waveform digital pulse compression processing system in frequency domain
本文主要研究雷達多波形頻域數字脈沖壓縮系統的硬體系統實現。 -
This dissertation mainly studies the radar multi - waveform digital pulse compression processing system in frequency domain based on fpga and multi - dsp
本文主要研究基於fpga和多片dsp的雷達多波形頻域數字脈沖壓縮系統及其軟體設計。 -
Synthetic aperture radar ( sar ) is a new type of radar system developed since 1950 ' s. it breaks through the resolution limitation imposed by real aperture. with pulse compression technology, two - dimensional high resolution to distant targets can be realized
合成孔徑雷達（ sar ）是五十年代發展起來的一種新型雷達體制，它利用合成孔徑原理，突破了實孔徑天線對解析度的限制，並結合脈沖壓縮技術，可以對遠距離目標進行方位向和距離向兩維高分辨成像。 -
( 4 ) debug the software and hardware of pulse compression system and the system in radar. the system is ultimately used in radar system successfully
（ 4 ）脈沖壓縮系統軟硬體調試及與雷達系統的聯試，最終交付使用。 -
This thesis discusses the pulse doppler ( pd ) weather radar signal processing system including digital intermediate frequency ( if ) receiver, especially on the application of if sampling and digital demodulation technique in pd weather radar signal processing system, the influence of amplitude and phase unbalances of in - phase and quadrature channels on weather radar echo spectrum estimation, ground clutters elimination algorithms and a typical engineering realization scheme of pd weather radar signal processing system
本論文研究的是採用數字中頻接收技術的脈沖多普勒氣象雷達信號處理系統，重點研究了中頻采樣及數字解調技術在脈沖多普勒氣象雷達信號處理系統中的應用、正交雙通道幅相不平衡對氣象回波譜估計的影響、地雜波濾波演算法，以及脈沖多普勒氣象雷達信號處理系統的具體工程實現。 -
The purpose of this thesis is to introduce the digitalization realization scheme, technology of if receive and pulse compression for lfm pulse compress radar, and how to implement them with fpga and other hardware circuits in our system
本文針對線性調頻雷達中對脈沖信號回波的中頻接收以及脈沖壓縮處理系統的全數字實現方案及技術進行了研究，並對其進行了硬體實現。 -
The study in this paper based on the national fifteen tackling key problem - " life detection and orientation of earthquake emergency response system " and project of no. 10 research institute of china electronics technology group corporation - " pulse radar target detection and location technology ", has completed the study and simulation of the relative technology of tdoa, which was a theoretical and technological supporting to the two projects
本論文在國家十五重點科技攻關課題「地震救助生命搜索與定位技術研究」和中國電子科技集團第十研究所「脈沖輻射源監測和定位技術」國際合作項目中，完成了對其中時差定位相關技術的研究和模擬，為工程項目的實施提供理論和技術支持。 -
In this dissertation, the principle of fem in em was discussed, then the pulse radar and three - layered pavements were analyzed with 20 - noded and 4 - noded isoparametric elements respectively. then, corresponding fem programs are compiled in fortran90. so a forward model was built up to describe the transmitting of electromagnetic in the radar and pavements, according to the system identification method
針對上述情況，本文系統闡述了電磁場有限單元法的基本原理，然後採用二十節點、四節點等參單元分別對pulse雷達實體及三層路面系統進行了靜態場和時變場的有限元分析，初步建立了電磁波在三層路面中傳播的正演模型，同實測波形相比，模擬效果較好，並用fortran90語言編制了相應的三維、二維有限元程序，具有較好的可讀性和可移植性。 -
Angle measuring precision phase sum / difference mono - pulse radar receiver is not only related to accurate strike to target, but also the base of successful penetration of interceptor missile for tbm anti - guidance system using two point sources of correlation, which is one of radar angle fraud technologies. thus, research on technical criteria influencing angle measuring precision of receiver is meaningful
相位和差單脈沖雷達接收機的測角精度，不僅關繫到是否能精確地打擊目標，而且是tbm反制導系統利用相干兩點源雷達角欺騙技術，成功突防攔截導彈的基礎，所以對影響測角精度的接收機各項技術指標進行研究具有重要意義。 -
In this thesis, the signal express format and characteristic of pulse internal phase modulation and pulse external frequency agile is introduced, and the signal design is processed based on the demand of radar system, the restriction of parameter design and various code format
本文首先介紹了脈內調相脈間跳頻信號的表達形式和特點，並根據雷達系統的需求和參數設計的約束條件以及不同的編碼形式進行了信號的設計。 -
The fourth section studies the modeling of broad band blocking jamming and coherent jamming, and analyses the principal of coherent jamming and the factors of influencing the jamming effect is provided. the performance of pulse doppler radar seeker is simulated when certain jamming methods is exerted. a pulse doppler radar seeker simulation system is established, by using the simulation system the performance of pulse doppler radar seeker is evaluated when jammed
第四部分研究了寬帶阻塞式干擾和相干干擾的建模問題，並分析了相干干擾作用原理，給出了影響干擾效果的主要因素及次要因素，模擬了脈沖多普勒雷達導引頭在寬帶噪聲干擾情況下的截獲和跟蹤性能，模擬了相干干擾對脈沖多普勒雷達導引頭跟蹤性能的干擾效果。 -
In this dissertation, the design of the hardware and software of the detecting radar based on the ultrasonic pulse are completed, including the debugging on the system and the hardware of cw radar
本課題完成了基於超聲波脈沖的測距雷達的硬體設計、軟體設計及系統調試並且完成了測速雷達的硬體調試。 -
Dsp56f805 samples the ultrasonic pulse coming back from the target, then measures the distance and shows it on led. tms320vc5509a is accomplished the detecting speed and the main control of the radar system, is 16 fixed dsp with high performance and low power produced by ti company. dsp5509a samples the wave coming from t / r module, then measures the target ’ s speed and send this information to the assistant control chip - p89v51 based on boost c51 core mcs produced by philips company, which controls the lcd
測距雷達系統的控制和信號處理的核心晶元是motorola公司的dsp型16位單片機56f805 ，由它對超聲波回波脈沖進行ad采樣后，計算目標距離並在七段數碼管上顯示。測速雷達系統中信號處理的核心晶元是ti公司的超低功耗、高性能的16位定點dsp ? ? tms320vc5509a ，由它對收發組件輸出的多普勒回波進行采樣，計算出目標運動速度后，送給輔助控制晶元? ?飛利浦公司生產的基於c51內核的增強型單片機p89v51 ，並且在液晶顯示器上顯示速度信息。 -
In certain phased array radar, there are only several pluses in a radar beam, which makes against clutter cancellation. the four - pulse canceler is commonly adopted in this instance. we bring forward some schemes of clutter rejection to improve performance of radar system
結合某型相控陣雷達的動目標處理系統研製，模擬了工程中採用的四脈沖對消技術和設計級聯雜波抑制濾波器的方法，並給出了相應的性能指標。 -
In the latter, firstly the fact that digital pulse compressing technology is one of the most important ways of signal processing in modern radar is introduced. the module of 4096 - point complex fft / ifft play a very important role in ha rdware implementation of digital pulse compressing system. secondly the basic theory of radix - 4 fft and the hardware implementation based on fpga of the 4096 - point complex fft / ifft is illustrated in detail
在第二部分中，首先說明了數字脈壓技術是現代雷達中重要的信號處理技術之一，而4096點fft變換模塊就是硬體實現脈壓技術的核心部分，然後說明了基4fft的基本知識以及基於fpga的詳細的硬體實現方案。 -
Millimeter - wave switch is a kind of the millimeter - wave control circuits, it is widely applied in receiving protection of pulse radar and radio modulator, and it ' s also one of the very important parts of radar and test system
毫米波開關是毫米波控制電路的一種，它廣泛應用於脈沖雷達接收保護和射頻調制器，是雷達利測試系統中的關鍵部件之一。 -
Uast is equipped with the complex radar system of both continuous wave pseudorandom code phase modulation and mono - pulse amplitude comparison ( crs ), and crs measures and gets target ' s position information
在坦克超近反導系統中，裝備偽碼調相連續波與單脈沖幅度比較復合體制雷達，用於測量目標的位置信息。 -
In this paper, the if circuit, the processor based on the pulse count technology and the adaptive signal processing of the system are discussed thoroughly. major contents are abstracted as follows : 1 the evolved. history of the anticollision radar system is given curtly. the development of the signal processing of the radar and the application of the digital signal processing technology to the radar system is summarized
本文重點討論了毫米波防撞雷達系統的中頻電路及其改進、基於脈沖計數新方法的處理機和自適應信號處理等的研究工作，主要研究內容摘要如下： 1簡要介紹了防撞雷達系統的發展歷史，總結了雷達信號處理的發展和數字信號處理技術在雷達系統中的應用及其實現方法。
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