current echo 中文意思是什麼
current echo
解釋
電流反射波-
The basic characteristics of the current data network are point - to - point, connectless, doing one ' s endeavor, no quality of service, etc. these characteristics do not meet the requirement of real - time services, therefore, the realization of voip need support of the some key technology. these technologies includes : speech sound coding and data compression, real - time transmission and control, mute compression and multicast, acoustic - echo cancellation and comfort noise generator, dynamic monitor and guarantee of quality of network service, as well as, the compatible of different network and different protocol with each other
但現有的數據網路的基本特性：點對點的、無連接的、盡力而為的、沒有服務質量保證等特性並不適合與實時的業務要求，因此voip的實現需要一些關鍵技術的支持，這些技術包括：語音編碼和壓縮技術、實時傳輸和控制技術、組播技術、靜音壓縮和舒適噪聲生成技術、回聲消除技術、網路服務質量的動態監測和保證技術、以及不同的網路、不同的協議之間的互連互通等等。 -
The measurement of the time interval of ultrasonic send wave and echo used the catch method of 52 series mcu, and avoided the error that the isr save the current value of counter
超聲波發射波和回波的時間間隔的測量利用了52系列單片機的捕獲方式，避免了因為藉助于中斷服務程序來保存計數器的當前值所帶來的誤差。 -
This article mainly discusses the basic theories and related protocol and technology of speech sound communication based on ip. the key discuss is the support of real - time services that is provided by the current ip network, codec and the acoustic - echo cancellation, as well as the dynamic monitor of network communication quality of service. it gains some conclusion by compare the merit and shortcoming between the h. 323 protocol and sip protocol and analyzing their bases : rtp / rtcp protocol
本文主要論述基於ip的語音通信所涉及的基本理論和相關的協議與技術，重點論述當前ip數據網路對實時業務提供的支持、語音編碼、回聲消除和網路通信服務質量的動態監測，在協議的分析上比較h . 323和sip協議之間的優缺點，並具體分析這兩個協議的基礎： rtp rtcp協議。 -
The results prove that the scheme increases the stability of electrode apparently, current fluctuating has been reduced, speed of system echo has been improved. the system has fine self - adaptive ability and fine ability to resist interference
現場調試結果表明採用的控制方法大大提高了電極控制的穩定性，電弧電流波動降低，系統的快速性大大提高，系統具有較強的自適應能力和魯棒性。 -
It introduces the advanced production equipment from germany, and has a large number of outstanding research, development, design and production technical personnel, professional devoted to the research that governance of mixing sound, echo, high bass and research of acoustic technology includes absorption, insulation, and guides the tidal current and development tendency of sound - absorbing material
公司引進德國先進的生產設備，並且擁有一大批優秀的研發、設計和生產技術人員，專業致力於混響聲、回聲、高低聲等噪聲的治理以及吸聲、隔聲等聲學方面的技術的研究，引領著吸聲材料的潮流與發展趨勢。 -
The methods of data association and tracking beginning and ending to single and multiple targets tracking in the multi - echo environment is listed. at the end of the thesis, a method is introduced, which is that based on the most closed principle, without the chosen echo, the current forecasting values added yawp based upon the former state values is considered as the target state estimated value. the value is an input of observation equation, the output of the observation equation is considered a chosen echo. and the method is validated in the simulation results
針對多目標跟蹤問題，首先對多目標跟蹤的原理和跟蹤門的形成方法進行了概述，並對多回波環境下單目標跟蹤和多目標跟蹤的常用的數據關聯方法和跟蹤起始、跟蹤終結方法進行了介紹，在本文的後半部分，對多目標的運動狀態進行了模擬研究，提出了一種目標狀態估計方法，該種方法的思想是當前時刻如果目標跟蹤門內沒有所期望的候選回波，首先計算出目標在前一時刻的運動狀態下對當前時刻的預測值，並將該值疊加上系統噪聲作為量測方程輸入值，然後將觀測值作為候選回波對目標進行狀態估計。
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