wireless communications 中文意思是什麼

wireless communications 解釋
無線通信
  • wireless : adj 無線的；無線電報的，無線電的；無線電話的。 a wireless enthusiast [fan] 無線電迷。 a wireless ...
  • communications : 溝通
  1. Being the energy transition and eradiating / receiving setting in wireless communications procedure, antenna became one of the most important technologies to be studied

    天線作為無線通信中的能量轉換和定向輻射或者接收裝置，成為各國軍事及通信領域研究的重點。
  2. In recent years, wireless communications have experienced unequalled rapid growth

    近年來，無線通信技術的發展進入了空前活躍的歷史時期。
  3. Wireless communications are easy targets for air wave interception, and wireless devices rarely have the computing power to support strong encryption of all communication data

    無線通信是無線電波攔截容易獲取的目標，而無線設備幾乎沒有任何計算能力來支持所有通信數據的強加密。
  4. Astri s initial research programmes focus on photonics, integrated circuit design, internet software, wireless communications and biotechnology

    應科院的初步研究范疇包括光電子、集成電路設計、網際網路軟體、無線通訊和生物科技。
  5. Beam switching, though, does not work well in the real world of wireless communications

    但是在真實的無線通訊世界里，射束交換技術的效果卻不太好。
  6. Wireless communications unit was set up at may 18th, 2001

    無線通信部於2001年5月18日正式掛牌成立。
  7. Convolutional coding is a coding scheme often employed in deep space communications and recently in digital wireless communications. it offers an alternative to block codes for transmission over a noisy channel

    卷積碼被運用於衛星通信和無線通信系統中，它提供了一種不同於分組碼的在噪聲通道下傳輸信息的一種編碼方案。
  8. In applications of array processing such as radar, sonar, and wireless communications, the array observed signal is best modeled as a distributed, rather than a discrete source

    在雷達、聲納、無線通信等陣列處理應用環境中，由於存在豐富的多徑散射，陣列觀測信號更適合採用分佈源模型來描述。
  9. There are many decoding schemes for convolutional code, such as sequence decoding algorithm, fano algorithm, viterbi algorithm. but in fact, what ' s used widely is viterbi decoding algorithm. the viterbi decoding algorithm, proposed in 1967 by viterbi, is a decoding process for convolutional codes in memory - less channel, which takes full advantage of convolutional codes. since viterbi algorithm is proposed, it has obtained rapid development whether in theoretics or in practice and been applied to all kinds of data transmission systems, especially to digital wireless communications and deep space communications

    卷積碼的譯碼演算法方案有很多，如序列譯碼演算法、 fano演算法、 viterbi演算法，但是真正大規模應用的還是viterbi演算法。 viterbi譯碼演算法是1967年viterbi提出的，它是一種對無記憶通道卷積碼進行譯碼的演算法。它充分發揮了卷積碼的特點，因而自viterbi演算法提出以來，無論在理論上還是在實踐上都得到了極其迅速的發展，並廣泛的應用於各種數據傳輸系統，特別是無線通信和衛星通信系統中。
  10. Research on field level wireless communications protocols

    現場級無線通信協議研究
  11. The wireless zone showcased the latest applications in wireless communications such as the remote monitoring of plants and venues, fleet management systems, fault monitoring and alert systems, and front - line law enforcement using portable mobile information technology facilities

    無線通訊區展示無線通訊技術的最新應用，例如遙距監察設備和場地車隊管理系統故障監察與警報系統，以及前線執法行動所用的手提電腦設備。
  12. For wireless communications, direct sequence code division multiple access ( ds - cdma ) techniques have received a great deal of attention due to the expectation of capacity increase, interference rejection capability, security, and so on. in a high data rate application such as multimedia services, however, the capacity of ds - cdma systems is limited by both the inter - chip, or inter - symbol interference

    Cdma技術以其高抗干擾能力、高容量、高保密性等技術優勢在第三代移動通信系統中被廣泛應用，然而在高速數據業務中，嚴重的碼間干擾和符號間干擾會導致系統性能明顯下降。
  13. The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above

    但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾，同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術（ orthogonalfrequencydivisionmultiplexing ， ofdm ）正是一種解決符號間干擾的有效傳輸手段，因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感，如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的，本論文將重點針對這兩個問題進行討論。
  14. Brilliant engineering and innovation lie behind these unseen elements that operate wireless communications, satellite broadcasts, air traffic control systems, microwave ovens, video cameras, touch - tone phones, computers, and many other products that have improved the quality, safety, and convenience of modern life

    在這些看不見的因素後面，傑出的工程學和創新技術操縱著無線電通訊、衛星廣播、空中交通管制系統、微波爐、攝像機、按鈕式電話機、電腦和其他改善了現代生活質量，提高其安全性和舒適性的產品。
  15. 7 stojmenovi c i. geocasting with guaranteed delivery in sensor networks. ieee wireless communications, december 2004, 11 : 29 - 37. 8 estrin d, govindan r, heidemann j, kumar s. next century challenges : scalable coordination in sensor networks

    出於優化電池使用的需要，在floodnet中每個傳感器節點的能量使用模式與本地的具體情況即該點傳感器電池的剩餘電量和傳送數據到下一傳感器節點所需要的電量和水災預測模型的要求即對每個傳感器所在點的數據重要性相適應。
  16. Design of 2. 4 ghz rf module for short - range wireless communications

    短距無線通信系統射頻模塊的設計
  17. Adaptive equalization technology has been regarded as a potential candidate to combat isi for future wireless communications

    在新一代無線通信系統中，自適應均衡技術，被認為是最有可能採用克服碼間干擾的方案。
  18. In proc. ieee wireless communications and networking conference wcnc, new orleans, louisiana, usa, sept. 1999, pp. 329 - 333. 39 itu - t recommendation h. 263 annex h. video coding for low bit rate communication - annex h : forward error correction for coded video signal

    在對這些高層編碼工具的介紹中，部分或全部給出了各個工具的設計思想和方法作用發展歷史，從而闡明為什麼在avs - m的標準制定過程選擇了該設計。
  19. We firstly introduced the research background and the characteristics of multicarrier wireless communications, and summarized the questions needed to be further researched

    論文首先對論文工作的研究背景進行了簡述，介紹了多載波通信系統的特點，總結了需要進一步解決的問題。
  20. Single - carrier frequency domain equalization in future wireless communications

    單載波頻域均衡系統的通道估計技術
分享友人
分享到 Line

分享到臉書