radio propagation 中文意思是什麼

radio propagation 解釋
無線電波傳播
  • radio : n. 1. 無線電訊[電報，電話]；無線電，射電。2. 無線電廣播；無線電（廣播）臺。3. 收音機。vt. ,vi. 用無線電傳送[廣播]；（向…）作無線電廣播[傳送]；用X射線拍照；用鐳醫治。
  • propagation : 持續培養
  1. In this dissertation, the location estimation methods for mitigating the influence of the nlos propagation and the location parameters estimation methods for ds - cdma cellular radio systems are studied. furthermore, the influence of the nlos propagation on the performance of radiolocation systems is analyzed. moreover, by using pilot sequences from the base station ( bs ) in wireless cdma cellular networks, the techniques for detecting and locating and tracking for 3 - d moving target are provided

    本論文針對蜂窩網中移動臺定位這一熱點，研究了移動臺定位的非視距影響減輕技術以及適用於ds ? cdma系統的定位參數估計技術，分析了非視距對定位性能的影響，並研究了利用蜂窩網路資源對三維運動目標的檢測、定位與跟蹤技術。
  2. The text uses the method of ray tracing that is based on improved traditional mirror image principle of the radio wave forecast and two ray propagation model, which can be used in any complex propagation environment and found any propagation path from the sending set to receiving machine without redundancy computer

    本文是基於無線電波預測中傳統的鏡像原理與雙射線傳播模型的結合而提出的改進了的射線跟蹤演算法，它能用於任何復雜的傳播環境中，能找到從發射機到接收機之間的所有傳播路徑而無須冗餘的計算。
  3. The highly sophisticated electronic methods rely on either light or radio wave propagation.

    較復雜的電子技術是利用光或無線電波傳播。
  4. Terminology for telecommunications. radio wave propagation

    電信術語無線電波傳播
  5. Definitions of terms for radio wave propagation

    無線電波傳播用術語的定義
  6. The result can be long distance reception of radio waves that would normally have been far beyond the radio horizon. the equations for ray tracing were given, simulating and tracing electro - magnetic wave duct propagation using spherical layered atmosphere mode, this method is very useful for analysis of radar echo distribution and confirm relation of stratification of atmosphere and ray duct propagation in the process of studying radar second product, introduce a new 3 - d interpolation method. outcome of this method can suit all kinds of density product

    在雷達二次產品處理演算法中，討論了一種新的三維插值，比以往在顯示每一個雷達二次產品時，都作一次插值相比，這種方法既節省了總的機時，也提高了每個產品的顯示速度，在討論這種方法后，用幾個產品的實例，說明了這種方法是可行的，並且還討論了等值線的生成原理，在「雷達二次產品處理平臺」下，開發了visualc + +實現程序。
  7. In chapter 4, a simulation approach is presented, which combines the outdoor radio propagation model, the eigen - driven patterns of handset diversity antenna with two feed ports and combining schemes of receiving signals, to investigate the performance of a dual antenna handset under co - channel interference ( cci ) and multi - path fading environment

    第四章首先用本徵激勵方向圖的概念來產生手機雙埠分集天線的接收信號矢量，然後將其與城市室外電波傳播模型、分集合併方式相結合，建立了分析在具有共道干擾和多徑衰落環境中手機雙天線系統的性能模型。
  8. Hydrometeors have dominant effect on the performance of systems operating at frequencies above loghz, and the remote sensing of hydrometeors is an important subject for radio propagation, radar meteorology and atmosphere physics etc. based on the physics characteristics of rainfall, fog and clouds, the propagation characteristics and remote sensing of hydrometeors are investigated and discussed

    水凝物是影響10ghz以上頻段系統性能的主要因素，它是電波傳播、雷達氣象、大氣物理和環境遙感等學科研究的重要對象。本文基於降雨和雲霧的基本物理特性，對降雨和雲霧的毫米波傳播特性、降雨和雲霧的遙感以及霧的紅外輻射衰減特性進行了分析和研究。
  9. In the third chapter, it was particularly analyzed the impact of the correlation between antenna arrays both sides of transmit and receive, the coexistence of line of sight ( los ) component and scatter power component in the radio propagation environments, and known and unknown channel state information on the capacity of mimo channel. the related simulation results are also given

    第三章著重分析了收發兩端的多天線單元之間存在相關性、同時存在直射分量（ los ）和散射分量的傳播環境、已知和未知通道的狀態信息等因素對mimo通道容量的影響，給出了有關模擬結果。
  10. Influence of conductivity on radio waves propagation in tunnels

    電導率對巷道中電波傳播的影響
  11. Underwater - radio buoy system for use as obtaining the ocean ' s acoustical parameters is primary for investigating ocean acoustic condition, obtaining and recording acoustic propagation experimentation data

    海洋環境參數獲取浮標監測系統主要用於海洋水聲環境的綜合考察，獲取和記錄水聲傳播試驗數據。
  12. International electrotechnical vocabulary - radio wave propagation

    國際電工詞匯.無線電波傳播
  13. Radio propagation in the urban cell plays an important role in modern wireless system

    城市小區中，電波傳播預測在現代無線通信系統中扮演著極其重要的角色。
  14. For few domestic and international studies of the radio propagation in the overburden of the earth ' s crust, this paper theoretically stresses the propagation problem of low frequency radio wave, including slf wave and vlf wave, in the medium and briefly introduces the theory of scale model testing method

    針對國內外有關電波在地殼覆蓋層中傳播研究工作的空白，本文主要從理論上討論低頻（包括特低頻和甚低頻）無線電波在該種介質中的傳播問題，並簡要介紹縮比模型測量理論。
  15. In the performance analysis of 3gpp, only the tradition serving cell selection is considered, which is only based on sir. however, 3gpp recommends that determination of the best cell not only be based on radio propagation conditions but also available resources

    目前， 3gpp只對基於信干比的服務小區選擇演算法進行了性能分析，但建議服務小區選擇要綜合通道質量和小區資源進行選擇。
  16. As we all know, the capability of wireless communication system is constrained by radio propagation channel, especially for future wideband communication system. so it needs more signal processing techniques to withstand bad radio propagation environment, such as diversity combination, coherent detection and channel encoding and decoding etc. for mimo physical layer approaches, channel state information is a prerequisite, thus comes many channel estimation approaches and algorithms

    無線通信系統的性能主要受到移動無線通道的制約，特別對未來的寬帶移動通信系統更需要採用很多信號處理技術來對抗惡劣的無線傳播環境以提高系統性能，比如常見的分集合併、相關檢測和通道編解碼技術等，而採用這些技術的前提就是要知道通道的狀態信息（ csi ） 。
  17. The uwb pulse communication is new exploration of radio spectrum, and it resolves the important problem of radio propagation. for its strong support to wireless input, we should study it

    利用uwb脈沖通信是對無線頻譜資源的利用進行新的探索，它解決了困擾傳統無線技術多年的有關傳播方面的重大問題。
  18. It ' s briefly demonstrated that the overall plan of the close range shortwave marine communication system, which including format of radio propagation, operation frequency, communication architecture, main parameters and the sampling part of receiver

    以水下作戰平臺對母艦的短波通信為背景，對海上近距短波通信系統的總體方案進行初步論證。其中包括電波傳播形式的論證、工作頻段的選擇、通信體制的選擇、接收機總體指標以及接收機采樣部分技術論證。
  19. The effect of mud on the performence of system can be considered the mud ' s efficience obtained by the link simulation, which depends on the algorithm of the mud, and the system multiplexing factor which depends on all kinds of factors related to the radio propagation environment in the cell network system planning, for example the cell scale, channel model, the system load and the user distribution

    隨后對影響多用戶檢測效率的干擾相消效率和系統復用因子兩個因素進行了全面而深入的分析。其中前者與接收機採用的mud演算法有關，一般通過鏈路模擬得到其結果，後者主要與蜂窩系統規劃設計中各種與環境相關的因素有關，如小區尺寸、通道模型、系統負載、用戶分佈。
  20. With the downlink simulation model constructed, performance of wideband cdma under different radio propagation environment and vehicular speed is simulated. based on system model of mc ds cdma under flat fading channel with relative shifts of spreading sequences within 1 chip and frequency selective fading channel with arbitrary relative chip shifts, performance of multicarrier cdma system with go sequences under different radio environment is investigated

    基於多載波直接序列碼分多址在乎坦衰落通道中序列偏移小於1個碼片及在頻率選擇性衰落通道中偏移任意個碼片的系統模型，本文還分析了採用廣義正交序列的多載波碼分多址系統在不同無線傳播環境下的性能。
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