準同步衛星 的英文怎麼說

中文拼音 [zhǔntóngwèixīng]
準同步衛星 英文
sub-synchronous satellite
  • : Ⅰ名詞1 (標準) standard; guideline; criterion; norm 2 (目標) aim; target Ⅱ動詞1 (依據; 依照)...
  • : Ⅰ名詞1 (步度; 腳步) pace; step 2 (階段) stage; step 3 (地步; 境地) condition; situation; st...
  • : Ⅰ動詞(保衛) defend; guard; protect Ⅱ名詞1 (周朝國名) wei a state in the zhou dynasty2 (姓氏...
  • : 名詞1 (夜晚天空中閃爍發光的天體) star 2 [天文學] (宇宙間能發射光或反射光的天體) heavenly body...
  1. Some message described in the thesis, such as the basic structure of gps - oem, the consists of positioning system, the binary format of almanac and ephemeris, the method and the skill of processing orignal data through singlechip, and so on, is very useful for studying gps and its applications in integrated navigation, and re - development on gps - oem

    時亦可與gis (地理信息系統)配套使用,實現在crt上地圖背景下的運動軌跡顯示。第二個產品, gps時鐘/系統,利用全球定位gps的標utc時間,可在全球得到確時間。設備採用motorola的12通道gpsoem接收機。
  2. It contributes to the deeper comprehesion of these probability distributions, affords more detailed theoretical basis for further studying and simulating satellite mobile channels, ? theoretical analyses and discussions of the models which are often used in the study of the propagating characteristics of satallite mobile channels are given ; meantime, some discussions on the work of model simulations are also given, ? incorrect derivation of the equality between c. loo model and corazza model in some other papers is pointed out. via the conception of received power, we derivate that in the rural environments these two models really have the equal relationship by the way of theoretical derivation and simulatant fittings. therefore, it is able to use corazza model in studying the characteristics of satellite mobile channels in the rural environments and able to avoid the iterant work of modeling, in order to enhance the efficiency and accuracy of research work, ? detailed processes of simulating lutz model by using matlab6. 0 _ simulink4. 0 and the results of comparisions are given

    本文包含有以下的主要內容: ?對移動通信通道傳播特性研究中常用的三個概率分佈給出了詳細的推導過程;以便對這幾個在移動通信通道傳播特性的研究中常用的概率分佈函數有更深的理解,對進一研究移動通信通道傳播特性和對通道的建模提供了更為詳盡的理論基礎; ?對移動通信通道傳播特性的研究中常用的通道模型進行了理論上的分析和討論,並對移動通信通道建模的研究工作提出了一定的看法; ?指出了以前的文獻中關于c . loo模型和corazza模型的等性的證明錯誤;並從接收信號功率的角度出發,通過理論推導及模擬曲線擬合重新證明了在鄉村環境下,這兩個模型的確是具有等性的;從而在對鄉村環境下的移動通信通道傳播特性進行研究時,可以只採用corazza模型來對實際的通道進行建模,這樣可以避免重復的建模工作並提高研究工作的效率和確性; ?給出了lutz模型在matlab6 . 0 _ simulink4 . 0環境下的軟體模擬實現的詳細過程和整體模擬測試的對比結果,保證了該模型在硬體實現時的可靠性和可行性,從而可以將它們應用於指導模型的硬體模擬實現並可以降低硬體實現時的風險。
  3. Satellite earth stations and systems - harmonized en for mobile earth stations of geostationary mobile satellite systems, including handheld earth stations, for satellite personal communications networks in the 1, 5 1, 6 ghz bands under the mobile satellite service covering essential requirements under article 3. 2 of the r tte directive

    地面站和系統.包括手持式地面站的移動系統的移動地面站及包括r tte指令中3 . 2條款基本要求的移動業務中頻帶為1 . 5 1 . 6ghz的個人通信網路用協調的en標
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