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call signal 【無線電】呼號。

call-a-mart

Due to a & b double flats setting of stp ( signalling transfer point ) in different place , and working on mode of payload - sharing on signalling links ( couple links ) between sp ( signalling point ) and stp , the calling signalling sequence cannot be collected completely from single stp . thus it is difficult to synthesize signalling affair in the signalling supervision system . the first , this thesis illuminateds network architecture of no . 7 signalling network and no . 7 signalling centralized supervision system 由于七號信令網的信令轉接點設備stp ( signallingtransferpoint )采用a 、 b雙平面異地設置,下一級的信令點設備sp ( signallingpoint )至上一級的一對stp之間的信令路由采用負荷分擔方式工作, sp至stp對的負荷分擔鏈路形成耦合鏈路,導致在一個stp處無法采集到完整的呼叫信令序列,這樣就給監測系統核心部分之一的信令事件合成帶來了極大的難度。

As the information era proceeds , highly developed digital image processing technique and communication technique make multimedia communication possible , and it is now on the way of progress . video conference have received more attention as an example of multimedia . in this paper we first describe the construction and characteristic of the video conference system and analyze the theory of protocol with itu - t h . 323 recommendation which inculde video and audio codec standard , communication control protocol h . 245 . call signalling protocol h . 225 , as well as procedures within these protocols define how these components communicate . also an experimental video conferencing system is designed and some relating key technologies are studied , which include multithread programming , transmission technology , mcu technology , qos mechanism and so on . especially , a video codec based on h . 263 recommendation with high fram rate as well as high compression ratio is researched and implemented because of importance of video application , which solves the bad image reconstrction quality problem existed in the most present video systems that adopt h . 261 video compression algorithm . by using these technologies . a video conferencing system is implemented based on lan . the system that the paper provides is easy to implement and the results of exmperiment is good . such system can be widely used in the fields such as business conference , distance education etc . and it is of good practical value 隨著信息時代的前進,數字圖像處理技術和通信技術的高度發展,多媒體通信已成為可能并已初具規模,視頻會議作為它的一個具體應用實例受到普遍關注。本文首先對國際電信聯盟itu - t制定的基于分組交換的多媒體通信h . 323系列建議進行了闡述,其中包括ip網絡視頻會議系統的結構組成、視頻傳輸標準、音頻傳輸標準、系統的信息碼流、通信控制協議h . 245和呼叫信令協議h . 225以及會議系統的進行過程。在此基礎上給出了ip視頻會議的實現的整體框架,為系統的軟件實現進行了模塊的劃分和整體設計,分析了各個模塊的功能、作用。

Considering synthetically the elevator running characteristics , a new evaluating function for the elevator group control system ( egcs ) is suggested . a kind of fuzzy neural network is used in the elevator group algorithm . the fitness of each elevator servicing the hall call signal is deduced , so the elevator is dispatched reasonably 綜合考慮電梯運行特性,提出一種新的電梯群控系統( egcs )評價函數,并用模糊神經網絡的電梯群控算法推出各電梯響應層站召喚信號的適合度,從而達到電梯的合理調度。

In the design and application of electronic engineering , both in open circuit and in closed circuit , signal is certainly affected by environment , the status of the transport network and the change of the parameters of the components applied . then the characters of useful information will be changed more or less and the change is generally called as distortion , namely so - called signal distortion =在電子工程的設計和應用中,信號無論在開路傳輸或閉路傳輸中都受到環境、傳輸網絡的工作狀態和應用的元器件參數變化的影響,從而會或多或少地改變有用信息的性質,這種變化就是所謂的信號畸變現象,通常稱作失真。

Through matlab simulations , this improved algorithm can not only achieve the same resolution ability as the conventional music algorithm in ideal conditions , but also acquire the resolution ability and estimation precision that music algorithm can ’ t obtain in the nonideal condition of so - called signal eigenvalue leakage 通過matlab仿真,該改進方法不僅可以在理想情況下取得和傳統music算法一樣的分辨力,而且在所謂的信號特征值泄露的非理想情況下可以取得傳統music算法不能達到的分辨力和估計精度,同時一定程度上減小了運算量。

Today ' s familiar telephony features - - such as caller id , call waiting and 800 / 888 numbers - - are intelligent value - added services made possible by a protocol called signaling system 7 ( ss7 ) 今天人們熟悉的電話功能,如主叫識別、呼叫等待、 800 / 888業務等,都是由于有了七號信令系統協議而實現的智能增值業務。

Estimating a dynamical trajectory of the reverberation and then taking it out from the observation , all target echoes should be obtained . that is called signal separation 信號分離是指在相空間中估計混響動力學軌道,從觀測中減去估計的混響,從而分離出目標回波。

Three kinds of signaling , ras signaling , q . 931 call signaling and h . 245 control signaling are engaged in the establishment of h . 323 calling process 323呼叫建立過程涉及到三種信令: ras信令、 q 931呼叫信令和h 245控制信令。

Provides capacity and performance testing of the network for audio quality , call signaling , and endpoint robustness 提供網絡的容量和性能測試,用于音頻質量、呼叫信令和端點的健全性。

Call signalling protocols and media stream packetization for packet based multimedia communications systems 基于包的多媒體通信系統上的呼叫信令協議及媒體流打包技術

A methodology , called signal subspace correlation ( ssc ) , is introduced 這個方法稱為訊號次空間關聯法。

Ncs ipcablecom network call signaling management information base requirements 個人間有線通信網絡呼叫信號