inter-system interference 中文意思是什麼

inter-system interference 解釋
系統間干擾
  • inter : vt 埋葬。 inter a dead body into the earth 把屍首埋起來。〈拉丁語〉 在中間，在內，互相。 inter al...
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  • interference : n. 1. 沖突，抵觸。2. 干涉，干預。3. 妨礙，打擾，阻礙物。4. 【物理學】干擾；干涉。
  1. For example, carrier frequency offsets, which are caused by the inherent instabilities of the transmitter and receiver carrier frequency oscillators, can lead to severe system degradation due to inter - carrier interference ( ici ). symbol timing synchronization must also be achieved in order to avoid inter - symbol interference ( isi )

    其載波頻率誤差會引入子通道之間的干擾（ ici ） ，而幀同步的誤差會引入符號間干擾（ isi ） ，同時還會對通道估計帶來嚴重的影響。
  2. 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。
  3. In modern communication system, the inter - symbol interference ( isi ) caused by non - ideal character of channel is the main factor which affect communication quality

    現代通信系統中，由於通道的非理想特性而引起的碼間干擾（ isi ）是影響通信質量的一個主要因素。
  4. Recently i have completed the report for jiangsu paging auto - connection - anen projects feasibility research and its system design. in this project, the inter - system interference from the different co - frequence paging areas and the inter - system interference between paging system and mobile systems co - located have been reduced successfully. this project has been awarded the gold prize by jpta

    近期完成了江蘇省無線自動尋呼聯網擴容工程的可行性研究報告及設計，該工程很好地解決了系統內不同同播區間的頻率干擾以及尋呼與移動通信系統同共空間時相互之間的干擾，該工程獲江蘇省郵電管理局頒發的優秀工程獎，並推薦參加建設部的優質工程評獎。
  5. This method can not only minimize the stopband energy of the prototype filter, but also determines the inter symbol interference power and the transition band energy, which can be used to design prototype filters for both the critically sampled fmt system and the non - critically sampled fmt system

    該方法不僅可以最小化原型濾波器的阻帶能量，還界定了符號干擾功率、過渡帶能量，適用於嚴格采樣和非嚴格采樣濾波多音調制系統。
  6. In the future, we will increase the number of the frequency - hopped sub - bands. it will solve the inter - symbol interference ( isi ) perfectly. then the system will be used on the test out of labs

    后續的工作只要把十六進制改為八進制（此工作不難）的數字頻移鍵控傳輸系統，藉以提高跳頻的子帶數目，即增加跳頻點，可期適于海上的應用。
  7. In the end, this paper considered detecting the desired user signal for uplink ds / cdma system. in that case, we need to suppress both mai and inter - chip interference ( ici ) caused by multipath propagation

    最後，本文研究了在ds cdma的上行通道中，同時存在多用戶干擾和多徑傳播引起的碼間干擾的情況下，對期望用戶信號的檢測。
  8. In this paper, research status of moa resistive leakage current on - line monitoring is introduced, different monitoring methods are analyzed and influencing factors of monitoring are presented, such as influence of power system ' s harmonic voltages, inter - phase interference, sampling methods on resistive leakage current of moa. in addition, some of these problems are studied deeply

    本文介紹了目前moa阻性電流在線監測的研究現狀；詳細分析了各種阻性電流在線監測方法的優缺點；提出影響moa阻性電流監測的因素和問題，如諧波電壓對阻性電流監測的影響，相間干擾對阻性電流監測的影響，全電流的取樣方法對阻性監測的影響，並且針對其中的一些問題作了詳細的研究。
  9. Inter - system interference

    系統間干擾
  10. A group of orthogonal frequency carriers are used in ofdm system to improve the using rate of spectrum. if the orthogonal character can be held and ignore the inter - channel interference ( ici ), the symbol error character of ofdm depend on the modulate of source codes. this dissertation propose the theoretic formula of ofdm - qam and ofdm - psk in this precondition

    為了提高頻譜利用率， ofdm系統使用了一組正交的子載波來傳輸信號，若能保證各子載波間的正交性不被破壞、不考慮通道間干擾（ ici ） ，則ofdm系統的誤碼性能由信元調制方案的誤碼性能決定，文中推導了該情況下ofdm - qam和ofdm - psk的理論誤碼率公式。
  11. Firstly, in wireless environment, receiver has no know the time delay between transmitter and itself. in ofdm system, ofdm data is transmitted as one symbol, so in order for correct demodulation, the correct start of symbol should be got from ofdm system to reduce the effect of isi. secondly, the high frequency utilization in ofdm is based on the orthogonal properties of sub carriers. if frequency offset is generated, the orthogonal properties among sub carriers will lost, that will cause inter carrier interference ( ici ) and high ber of system

    Ofdm技術也存在著一些缺陷，首先，在無線環境中傳輸的ofdm信號對定時要求高，為了減少碼間串擾（ isi ）影響，必須從接收信號中提取出正確的符號起始位;其次， ofdm系統對頻率偏移敏感， ofdm技術的高頻譜利用率和傳輸可靠性均以子載波的正交性為基礎，如果接收機和發射機之間發生頻率偏移，子載波之間就會失去正交性，導致嚴重的子載波間干擾（ ici ） ，降低系統性能。
  12. In mobile communication, the multi - path of channel brines the inter - symbol interference ( isi ) which cna make the ber of system larger. a technology called adaptive equalizer combined with adaptive array antenna is researched. this technology is used in the base station to restrain isi, and it is realized through landscape orientation filter, whose weight vectors are formed by rls algorithm. the result of computer simulation showe that the ber performance of system is good enough to ensure the requirement of communication

    在移動無線通信中，由於傳輸通道的多徑性質，會在接收端引起碼間干擾，使系統誤碼率變大，結合智能天線系統研究了一種自適應均衡技術，在基站一端使用，用來抑制碼間干擾，它通過橫向濾波器來實現，通過rls演算法自適應地產生加權因子.計算機模擬的結果可以證明，使用無衡技術后，系統的誤碼性能可能滿足通信需要
  13. However, high - speed data transmission system suffers from time - variant multi - path fading and inter - symbol interference ( isi ). as a solution, adaptive equalization can effectively combat isi by compensationg for channel distortation

    隨著數據率的提高，通道呈現出頻率選擇性，信號的一些頻率成分將產生深度衰落，產生碼間干擾（ isi ） ，影響系統的性能。
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