雷達成象 的英文怎麼說
中文拼音 [léidáchéngxiàng]
雷達成象
英文
radar imagery-
In the first and second chapter ， spaceborne three - dimensional imaging altimeter is introduced briefly
文中第一、二章簡要介紹了星載三維成象雷達高度計系統。When blanket jamming is used, the more the ratio between the power of jamming and the power of signal, the less detection probability of the radar is. the effect of distributed jamming mainly depends on the total power. after distributed, the randomicity of distance and phase of jamming source bring difficulties to analysis
對壓制式干擾來講，干信比越大，雷達的發現目標的概率就越小，由於分散式干擾的干擾效能在於其合成功率，在分散式干擾單元分佈之後，各個干擾源與被干擾對象之間的距離的不確定性，帶來了干擾信號相位的不確定性，增加了分析干擾效能的復雜度。Because the synthetic - aperture radar can ’ t be influenced by the weather and it can accomplish high graphics reconnaissance for the landform, establishment and immovable or slowly - speeding target in the area of mapping. so it has the important martial value. this had been testified in the series of brushfire in these years
由於合成孔徑雷達（ synthetic - apertureradar ）可以不受氣象影響，對測繪區的地形、設施、固定和低速運動目標完成高分辨的成像偵察，因此具有重要的軍事應用價值，這在近年來的多次局部戰爭中得到了充分的驗證。By establishing factories in pakistan, chinese enterprises would cash in on the geographic advantage in terms of exporting to the middle east and africa, he pointed out. bilateral trade between china and pakistan has been enjoying fast growth since 2000, and pakistan has grown into china s second - largest trade partner in south asia following india. the two countries chalked up a record trade volume of some us 3. 06 billion last year, an increase of 26 per cent
回顧曾經一度流行的增加配置不加價加法或者大幅增加配置營銷，比如企業把許多選裝件變成了標準配置， abs緩速器電動天窗倒車雷達真皮座椅和液晶顯示等配置統統變成了標準配置，藉此提高產品形象，維護企業價格體系，最終這種加法營銷並沒有給企業帶來實際收益和產品形象的提高，加法營銷便草草收場。Then, we introduce the basic structure of pd weather radar signal processing system and their function of each subsystem, mainly including intermediate frequency receiver, clutter elimination, range correcting and smoothness, ambiguity resolution and spectrum estimation
並在此基礎上介紹了氣象雷達信號處理系統的基本構成與各部分的主要功能，主要包括氣象回波中頻接收、雜波抑制、距離訂正、平滑處理、解模糊和譜矩估計等。He says obtaining an international water treaty will take the same kind of mobilization by civil society which achieved the ottawa convention, banning the production and use of landmines
他說，需要象禁止生產和使用地雷的渥太華公約那樣將公民社會動員起來，才能達成一部國際性的用水公約。Seeing that typhoon has brought great harm to mankind, meterological departments of all countries have attached great importance to the forecast and precaution of tropical cyclones. the prompt development and the wide application of the technology of the satellite remote sensing, radar detection, numerical weather forecast. numerical statistics weather forecast and computer simulation forecast in the field of meterological supervision and forecast has enabled people to improve their forecast level greatly
鑒于臺風對人類造成的巨大的危害，各國氣象部門都十分重視熱帶氣旋的預報預警工作。衛星遙感技術、雷達探測技術、數值預報技術、數值? ?統計預報技術以及計算機模擬預報技術的飛速發展和在氣象監測預報領域的廣泛應用，使人類對熱帶氣旋的監測預報水平得到了大幅度的提高。Aerial radar imagery
航空雷達成象Based on the vector radiative transfer theory and the characteristics of the sar technology, several sub - models for rice backscattering are constructed, including the leaf scattering model, the leaf extinction model, the trunk scattering model, the trunk extinction model and the water reflection model. then an integrated model for the first - order scattering mechanisms of rice, including all the main physical processes, is achieved
針對合成孔徑雷達sar的技術特點，以水稻為研究對象，從矢量輻射傳輸理論vrt出發，通過模擬水稻主要器官稻葉和稻桿對電磁波的散射衰減作用等物理過程，建立了一套完整的水稻一次後向散射作用的物理模型，用以模擬水稻層的後向散射系數Detailed diagnoses is made on a heavy - hard rain in the northeast qinghai - xizang plateau using ncep data of 1 x 1 with 6h intervals, more complete and integrated conventional observational data and the data set of automatic meteorological stations in plateau and new generation doppler radar data and satellite images and etc. the following conclusions can be drawn : 1. the distribution of heavy - hard rain, which is characteristics of valley topography in northeast qinghai - xizang plateau is obviously effected by topography. the distribution of yearly mean precipitation and the frequencies of heavy - hard rain in this area are descending from east to west
本文首先利用ncep時間間隔為6小時的1 1的格點資料、更全面、更為完整的常規探測資料和高原地區布設的自動氣象站資料、新一代多卜勒天氣雷達資料、衛星雲圖資料等對高原東北部地區大到暴雨的天氣、氣候特徵及大尺度環流背景進行分析，形成對高原暴雨的整體認識，並為以後的數值模擬提供大尺度環流背景及依據，分析中發現： 1 、高原東北部地區大到暴雨的分佈明顯受到地形影響，年降水量和大到暴雨次數自東向西呈階梯性遞減趨勢，分別在高原東北部的外流河谷地區和四川北部地區存在大值中心。Like light and radar waves, microwaves usually bounce off objects, making them visible to instruments and creating a shadow that can be detected
就象光波和雷達波一樣，通常微波遇到物體就會反射回來，因此通過設備就能看到物體的成像，或是留下能被探測到的影子。The algorithms are developed firstly based on the simulated raw data, and then applied to practical raw data. all the algorithms are realized based on the matlab and idl software platform and successfully applied to the imaging processing of experimental raw data
本課題的關鍵問題是在深入了解雷達成象原理的基礎上，建立數據處理的計算機模擬模型，尋找出適合本系統的成象方法，並以此為指導實現對機載實驗數據的成象處理。The main work of this thesis is to realize the 2d imaging processing of the experimental raw data, which lays a solid foundation for 3d imaging
主要的研究目的是實現星載三維成象雷達高度計的二維成象，為三維成象打下基礎。Zhang xiangkun ( aircraft design ) directed by ： liu heguang, zhang yunhua this thesis is supported by the national 863 project " key technology of spaceborne three - dimensional imaging altimeter "
本論文課題是結合國家863計劃課題「星載三維成象雷達高度計關鍵技術」而進行的。The influence of high velocity has been analyzed and then the relative ways of compensation are introduced. from theory the influence of spinning motion which bring to the targets " one - dimension range - profile has been analyzed. the arithmetic of estimation of signal with polynomial phase is introduced and then spin compensation is realized
本文以寬帶線性調頻體制雷達為研究背景，以高速運動目標、自旋運動目標為研究對象，研究了高速運動對目標成像所造成的影響，提出了相應的補償演算法；理論分析了目標自旋對一維距離像的影響，引入多項式相位信號系數估計的演算法，實現了目標旋轉補償。The research object of this dissertation is focused on the fusion of synthetic aperture radar and multi - spectral satellite images and with the purpose of optimizing the fusion of the integrated image information
本文以優化圖象整體信息為目的的圖象融合作為主要研究方向，研究對象為合成孔徑雷達圖象與多光譜圖象的融合問題。With the development of radar technology, one of the obvious features of radar is the improved resolution. the imaging radar is a type of high - resolution radar, which is based on the technology of broadband microwave and advanced signal processing. by use of the imaging radar, which has broad applications and has become the focus of the field, the target can be imaged hi all weathers and at anytime from far distance
隨著雷達技術的發展，現代雷達的最顯著特點之一就是對目標的分辨能力的提高，以寬帶微波技術和先進的信號處理技術為基礎的成像雷達，它作為一種高解析度的雷達，能夠對觀測對象進行全天候、全天時、遠距離的成像，有著廣泛的應用前景，成為研究的熱點。This paper particularly and thoroughly studied the development of air situation simulation system on a certain military information system. firstly introduce the system ' s frame and analyze the whole system by ooa technology, from which abstract some clusters and give the connection of these clusters, secondly give the arithmetic about plane ' s track, radar and sentry ' s scan function by thoroughly study the curve ' s fit and insert value method, show a better method for how to inspect plane, finally paint the system ' s flow chart. the system is basically credible by test
本文主要討論了某軍用信息系統的空情模擬部分，首先從系統的整體功能出發，宏觀地描繪了該系統的基本框架，然後根據需求情況對該系統的各個功能運用面向對象的思想進行分析，從中抽象出多個類，設計了類與類之間的關系，並通過對各種曲線的擬合和插值演算法進行深入細致的研究，給出了求飛機飛行軌跡的演算法實現，以及雷達和哨所的方程表示，對于監測飛機的演算法結合實際給出了一種比較好的解決方法，最後繪制了整個軟體的流程圖以及描述了各個模塊的具體實現過程，完成了系統的需求。3 apar simulator system software for apar echo environment setting, simulation signal generating and simulator control etc., is developed in microsoft visual c + + environment with object oriented design method
三、基於microsoftvisualc + +的面向對象程序設計，完成相控陣雷達模擬器的主機軟體的部分設計和升級工作。In recent years the study of polarimetric technology for detecting atmosphere has made great progress, and become a popular aspect of radar meteorology
摘要近年國際上偏振微波雷達探測大氣研究有了重要進展，成為雷達氣象學研究的新熱點，並可能成為天氣雷達發展的重要方向。分享友人