signal standards 中文意思是什麼
signal standards
解釋
信號標準-
And introduce the development of digital signal processing. chapter 2 gives an overview of dvb and mpeg - 2 transmission standards in digital video system
第二章主要講述了數字電視系統中與節目復用相關的dvb部分標準和mpeg - 2部分標準。 -
Standards of digital tv broadcast has specified transmitting systems which are based on various medium such as satellite - oriented transmitting system ( dvb - s ), cable - oriented transmitting system ( dvb - c ), terrestrial - oriented transmitting system ( dvb - t ). different system adopts different methods of channel codec, modulation and demodulation, but for signal source block codec, only mpeg - 2 standard has been applied for all the systems. as a compression standard being specified in digital tv broadcast transmission, mpeg - 2 has been widely involved on compression occasion
對于數字電視信號的傳輸，數字電視廣播標準制定出基於多種媒質傳輸的傳輸系統，如衛星傳輸系統（ dvb - s ） ，電纜電視傳輸系統（ dvb - c ） ，地面廣播（ dvb - t ） ，不同的傳輸系統制定不同的通道編碼和調制解調的方法，但是對于所有傳輸系統的信源編碼則一律採用mpeg - 2這一標準。 -
Considering practical needs and developing trend of vts, based on analyzing the signal characters of vts radar video, studying basic data compression principles in information theory, comparing international coding standards in the forefront of image processing, a vts radar video coding system suitable for transmission in the narrow channel is proposed in this thesis. its main block ? oder and decoder, is realized in the common pc with software. the working process is demonstrated detailed
結合vts系統的現實要求和發展方向，本文從vts雷達原始視頻圖像數據的特點出發，從信息論中關于數據壓縮的基本原理出發，從現代信號處理特別是圖像信息處理領域中的壓縮編碼國際標準出發，提出了雷達原始視頻編解碼系統方案，其主體部分? ?編解碼器是在pc機內利用壓縮軟體實現，闡述了系統工作流程；提出了基於jpeg壓縮演算法和h -
Based on iec standards, the methods of designing square demodulator, bandpass - weighted filter, and smoothing filter are presented. besides, the signal conditioning circuits and online statistical analysis methods of instantaneous flicker value are given. matlab simulink is also used to simulate the measuring process of voltage fluctuation and flcker
基於iec標準要求，設計了實現數字式電壓閃變測量的平方解調器、帶通加權濾波器、平滑濾波器等各環節，給出了信號調理電路和瞬時閃變值在線統計分析方法，並應用matlab系統模擬工具simulink對電壓波動和閃變測量全過程進行了數字化模擬。 -
Methods of measurement under conditions different from broadcast signal standards on receivers for television broadcast transmissions
電視廣播接收機在非標準廣播信號條件下的測量方法 -
Recommended methods of measurement on receivers for television broadcast transmissions ; part 6 : measurement under conditions different from broadcast signal standards
電視廣播接收機的推薦測量方法.第6部分:不同廣播信號標準條件下的測量 -
Mine explosion - proof protective enclosures designed and manufactured according to standards gb3836 - 2000, is currently the only legitimate use of the dual - output signal products, components pleasing and rational design, installation convenience
礦用隔爆型防護罩按gb3836 - 2000標準設計製造，是目前國內唯一具有雙重輸出信號的合法使用的產品，整機造型美觀、設計合理、安裝便利。 -
On physical layer, it consists of a variety of ne ( network elements ) with different functions connected by optical fibre cables. compared with pdh, sdh is more widely used in fibre optical communication system these days. the reasons of the wide applicability of sdh are : first, it provides worldwide standards for electrical interface and optical interface, which can promote multi - vendor interoperability ; second, it has the feature of synchronous multiplexing and flexible mapping mechanism, so it can use stm - 1 signal to bundle atm cells, fddi signals as well as pdh signals
Sdh之所以具有強大的生命力和廣泛的適應性，主要有兩個原因:提供統一標準的光介面和電介面，使不同廠家設備實現橫向兼容;採用同步復用方式和靈活的映射結構，以基本傳輸模塊stm - 1為橋梁，與原有的pdh信號實現縱向的前向兼容，與atm 、 fddi等數字體制實現後向兼容。 -
On the other hand, recent advances in communication and modulation methodologice, as well as in adaptive digital signal processing and error detection and correction, have opened the way for the development of effective medium access control and physical layer protocols that support power line communications ( plc ) networks operating at speeds comparable to those obtained from specially wired and more recent wireless local area network in mid - 2001, an industrial standards organization called the homeplug powerline alliance, originally founded by 13 companies including cisco, motorola, intel, panasonic, and texas instruments, announced the completion of the homeplugl. o specification for a l. 0mb / s class in - home power line networking technology based on orthogonal frequency - division multiplexing ( ofdm )
但是，近年來通信和調制技術的發展，特別是自適應數字信號處理和錯誤檢測及糾正技術，使電力線通信技術出現新的mac層和物理層協議，其性能可以和一些專用有線網路以及最近十年流行的無線局域網技術想媲美。在2001年，一個由13個公司（包括cisco ， motorola ， intel ， panasonic ， andtexasinstruments ）組成的組成的標準組織? ? homeplugpowerline聯盟，頒布了完整的homeplug1 . 0規范，改規范使基於正交頻分復用技術，主要針對10mb s室內電力線網路技術。 -
As the merits of multi resolution analysis, wavelet theory now is widely applied in every fields of signal processing, especially in image codec, like jpeg2000, mpeg4 standards, etc. wavelet based spiht ( set partitioning in hierarchical trees ) codec algorithm and its application in face recognition are studied in this thesis. the main contributions are as follows : 1. the followings are studied in this thesis : principle of wavelet based image coding methods, key problems of wavelet transform in image codec and some main coding algorithms based on wavelet
本文研究了基於小波spiht （ setpartitioninginhierarchicaltrees ）圖像壓縮編碼性能及其在人臉識別中的應用，主要工作如下： 1 、給出了基於小波的圖像壓縮編碼的基本原理與主要幾種小波圖像壓縮演算法，討論了圖像編碼中小波基選取、邊界處理以及分解級數等幾個問題。 -
The thesis firstly summarizes the current research of hdtv test pattern signal, and introduces the hdtv technology, hdtv signal design reference standards, such as smpte international standards and chinese standards for hdtv digital video signal interface of studio
論文首先對hdtv測試信號研究現狀進行了概述，並介紹了hdtv技術、 smpte國際標準及國內的演播室高清晰度電視數字視頻信號介面等hdtv信號設計參考標準。 -
Some of them have set about this work. this article discusses the principles of digital tv studio technology according to the present situation and developing tendency of current tv systems, including the features of digital studio, the coding standards of digital signal, the compressing technology of video and audio signals and the utilization of computers multimedia technology in editing tv programs. it elaborates the designing methods, principles and puts forward several concrete disposition examples
本文僅根據目前高校電視節目製作系統的發展現狀及趨勢著重論述了數字電視中心的技術原理，包括數字演播室的特點、數字分量信號的編碼標準、視音頻信號的壓縮技術以及計算機多媒體技術在電視節目製作中的應用等內容，闡述了高校電視節目製作系統數字化的設計思路及設計原則，提出了具體的設備配置方案。 -
The aim of this paper is to extend the theory and application of multiwavelet and introduce novel methods for fault signal processing, which may have a considerable impact on engineering application. from the key problem - pre - processing of multiwavelet applications, the necessity of pre - processing method is discussed. after the influence of pre - processing methods to multiwavelet filters response are analyzed and studied in detail, the two estimation standards are proposed to choose the best pre - processing method
本文首先從多小波理論在實際應用中的關鍵問題- - -預處理問題出發，探討了多小波採用預處理方法的必要性，從濾波器響應的角度分別對這些處理方法對原有多小波濾波器響應的影響進行了詳細分析與研究，提出兩種衡量指標來討論最優預處理方法的選擇問題。 -
A broadband matching network is designed for the broadband signal antenna, using one of the broadband matching technologies - real frequency theory. secondly, the relative theory, design and emulate of the power amplifier are presented, and a power amplifier of high output power and high efficiency is designed, according to the standards of the responder system
2 ，討論了功率放大器的相關理論、設計、模擬及實現，主要包括:功率放大器的穩定性分析、負載線法分析以及功率放大器工作類別分析;根據應答器系統指標，完成了系統中大功率高效率的能量載波功率放大器的設計。
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