communications carrier 中文意思是什麼
communications carrier
解釋
〈美國〉信息遞送者。- communications : 溝通
- carrier : n 1 運送人，搬夫；負荷者；使役，〈美國〉信差，郵遞員；送報人；〈英國〉運輸行，運輸業者。2 傳書鴿...
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In communications, the amplitude variations of an amplitude modulated carrier wave
在通信技術中，調幅載波的幅度變化圖。 -
The ip - world is a highly structured mixture of communications - transportation and communications - services, with the services being mostly defined so as to be transparent to the communications carrier
所以基於sip的voip系統偵聽的實現還涉及到代理服務器和網關的協調工作。由於ip網路本身的復雜性，目前還沒有具體的偵聽標準。 -
Application of paired carrier multiple access technique in satellite communications
衛星通信系統成對載波多址技術的應用 -
The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research
調制類型的自動識別廣泛應用於民用通信與軍用通信，尤其是對于非合作性通信、通信對抗，比如：信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上，借鑒了已有的特徵提取方法，對相關調制類型特徵提取方法進行了優化，使用了一些有效的方法，如基於變換域特徵提取方法、梯層電平分析方法、剔除載波后的歸一化頻域能量分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經網路兩種識別演算法進行分析，本論文選擇了較適合的基於決策理論的識別演算法。 -
According to the principle of spread spectrum communication, the anti - interference performance of the technology is discussed and the composition of power line spread spectrum communication is described. based on the spread spectrum technique, a method which is low cost, high communications quality and low bit error for power line carrier communication using single - chip software programming is proposed
利用擴頻通信原理，分析擴頻通信的抗干擾特性，在此基礎上，闡述了電力線載波通信系統的基本結構，提出了一種利用軟體編程實現電力線載波擴頻通信的方法。該方法不增加硬體成本，即能達到提高通信質量、降低誤碼率的目的。 -
Through the reaserch of the paper, a satellite transmission and television signal incepting system using stabilization platform which is used on the moving carrier ( vehicle, boat, ship etc ) has been designed. it uses an embedded system which is based on arm7tdmi core microcontroller and c / os - ii real - time operating system to control and scout the movement of the antenna stabilization platform, can realize the real - timable and reasonable stance control of the antenna, and then can realize the real - time communications and the signal receiving between the satellite and the moving carrier
3 .通過論文的研究，開發出了一種用於移動載體（車、船、艦等）上利用穩定平臺來進行衛星通信與電視信號接收的系統? ? 「動中通」移動載體衛星通信與電視接收系統。該系統採用基於arm7tdmi核微控制器和c / os - ii實時操作系統的嵌入式系統來控制天線穩定平臺的運動，可以實現對天線實時而合理的姿態控制，從而實現移動載體與衛星之間的實時通信和信號接收。 -
Its main contributions in the imo in 2000 concerned standards of training and certification for seafarers, bulk carrier safety, radio communications, revision of the international maritime dangerous goods code, safety of navigation, prevention of pollution and matters relating to liability and compensation for bunker oil pollution damage
參與的事務主要關乎海員培訓和發證標準、散裝貨船安全、無線電通訊、 《國際海運危險貨物規則》的修訂、航行安全、防污，以及關于裝卸燃料引致油污損害的責任和賠償事宜。 -
In 2002, the hksar attended two conferences and 16 imo meetings in london, and contributed to imo discussions on various matters. these matters included the standards of training and certification for seafarers, bulk carrier safety, radio communications, revision of the international maritime dangerous goods code, safety of navigation, prevention of pollution, suppression of maritime piracy, and maritime security
二零零二年，香港派遣代表前赴倫敦出席會議兩次和國際海事組織會議16次，參與討論的事務包括海員培訓和發證標準、散裝貨船安全、無線電通訊、修訂《國際海運危險貨物規則》 、航行安全、防污、遏止海盜罪行，以及海上保安。 -
Mc - cdma is a multi - carrier modulation method presented for broadband mobile communications
Mc - cdma是為寬帶移動通信而提出的新型多載波調制技術。 -
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 -
Hong kong s main contributions at imo in 1998 concerned standards of training and certification for seafarers, bulk carrier safety, radio communications, revision of high speed craft code, safety of navigation, fire protection, prevention of pollution and limitation of liability related matters
一九九八年，香港對國際海事組織所作貢獻，主要在於海員培訓與發證標準、散裝貨輪安全、無線電通訊、修訂《高速船安全守則》 、航行安全、防火、防止污染和責任限制相關事宜等范疇。 -
To that end, the group must accelerate its pace of growth and make continued efforts to transform itself to a service - oriented enterprise in all senses. the corporate goal of the group is to build itself into a first - rate telecom carrier with international competitiveness and to equip beijing with state - of - the - art communications infrastructure in five years
北京電信的企業目標是：用五年左右的時間，把北京電信建設成為實力雄厚的真正具有國際競爭力的世界一流通信運營企業，使首都北京的通信達到國際大都市同期的水平。 -
The combination of cablemodem and hfc is a way to revamp the catv network to a hybrid videodata communications network. however, hfc uses sub - carrier fdm, which requires ad conversion before transmission. in that sense, the transmission quality will be compromised
雖然cablemodem與hfc配合，是將catv網改造成為視頻、數據混合通信網的一種可能選擇，但hfc採用副載波頻分復用方式，必須進行數模轉換才能傳輸，所以傳輸質量將受到影響。 -
In communications, an amplitude modulated signal in which the amplitude of the carrier is reduced to zero for some part of the cycle of the modulating waveform
通信技術中的一種調幅信號，其載波的振幅在調制波形周期的某些部分減少到零。 -
It is the carrier of official communications to rotary club officers
它是國際扶輪與各扶輪社職員的正式溝通橋梁。 -
In communications, the connection, by a common carrier, of the output portion of a circuit back to the input portion of a circuit
在通信技術中，通過公共載體將電路的輸出部分返回到電路的輸入部分的一種連接。 -
With the characteristics of large ambient noise, very narrow bandwidth, low carrier frequency, great propagation latency and time - space - frequency variant multipath effect ( mpe ), the stochastic ocean channel has demonstrated the greatest complexity and difficulty for underwater acoustic wireless communications. among them multipath effect ( mpe ) is the most difficult obstacle that results in signal fading and inter - symbol interference ( isi )
但是噪聲高、帶寬窄、載波頻率低、傳輸時延大、多途徑效應隨時間?空間?頻率變化等通道特性都會給有效、可靠的水聲通信帶來很大的麻煩，其中多途徑效應是最主要的困擾因素，它會導致信號幅度衰落和碼間干擾。 -
[ article 10 ] the time of arrival or departure, the place of stay, any moving during their stay and the time for loading or discharging the cargoes or articles of all inbound and outbound vessels, trains and aircraft shall be notified in advance to the customs by the carrier or related communications and transport units
第十條進出境船舶、火車、航空器到達和駛離時間、停留地點、停留期間更換地點以及裝卸貨物、物品時間，運輸工具負責人或者有關交通運輸部門應當事先通知海關。 -
Digital down converting is one of the key technologies of software radio. it can improve the efficiency and reliability of communications. lt is also important to realize software radio receivers. the paper focuses on the technologies involved in digital down converting, such as integer sampling - rate conversion, non - integer sampling - rate conversion and carrier frequency offset estimation algorithm. on the base of these, the paper analyzes applications of digital down converting in the hsp50214b programmable downconverter. the hardware and sofeware of the application of digital down converting are also introduced
數字下變頻技術是軟體無線電中的關鍵技術之一。該技術不僅有助於提高通信的有效性和可靠性，還對實現真正的軟體無線電臺有著重要的意義。本文對數字下變頻所涉及整數倍采樣率轉換、非整數倍采樣率轉換和載波初始頻差估計校正作了較深入的研究，並提出了一些實用高效的實現結構和演算法。 -
In this paper based on the test and simulation of different power networks, the reliability and practicability of carrier communications are discussed and the impedance characteristic, transmission characteristic, the effect of noise on the low - voltage are also analyzed
本文基於對不同電網環境下的載波傳輸情況進行系統綜合測試和模擬的基礎上，針對載波通信的可靠性、實用性進行了探討。分析了低壓電力網的阻抗特性、傳輸衰減特性以及噪聲特性影響。
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