source coding 中文意思是什麼

source coding 解釋
信源編碼
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  • coding : n. 編碼；譯成電碼。
  1. According to the project of adaptive multi - rate speech coding ( amr ) being put forward by the third generation group of the mobile communication, this paper takes the principle of the speech arithmetic as the base, studies the technologies including the source controlled rate, voice activity detector, comfort noise and the error concealment unit in amr, discusses its the characteristic of adaptation and analyses its performances particularly. amr c codes are researched carefully through the modules being divided into and debugged under the tms320c54x provided by the ti corporation, and optimized in selecting the method of c code embedded assembler codes and simplified in the search codebook combining with the theory of speech coding, which are based on the realization about theory and practice of the optimization of amr speech coding

    從自適應多碼率語音編碼演算法的c代碼出發，對它進行模塊劃分後作了系統分析，將其在vc下調試通過，進一步在ti公司提供的tms320c54x環境中進行調試，結合語音編碼理論，對演算法進行優化，採用了在c代碼中嵌入匯編和簡化自適應碼本和固定碼本搜索的方法，部分地提高了c代碼效率，為實現自適應多碼率語音編碼的優化奠定了理論和實踐基礎。
  2. The specifications for digital audio source coding

    數字聲音信號源編碼技術規范
  3. The rate - distortion function, and source coding theorem

    率失真函數和信源編碼定理。
  4. The channel coding theorem, the source coding theorem

    通道編碼理論和信源編碼理論。
  5. Source encoding and channel coding

    信源編碼與通道編碼
  6. Study on the method to increase in the abilityof source coding to channel errors

    提高信源編碼抗通道誤碼能力的方法研究
  7. In communications approach, the main aim of source coding is data compression

    在通信方法中，信源編碼的主要目的是數據壓縮。
  8. But in watermarking system, the main aim of source coding is watermark shaping

    但在水印系統中，信源編碼的主要目的是水印整形。
  9. The first step in the study of a watermarking system is the issue of watermarking source coding

    數字水印系統研究的第一步是水印信源編碼問題。
  10. This method provides unequal protection for spiht bet stream with different importance, and adaptively adjusts the source and channel coding rates according to the time - varying characteristic of the channel, thus yields good performance and high reliability without adding extra bandwidth. simulations in rayleigh channel show that the scheme can obviously improve the image quality compared to eep and uep scheme, especially when the channel is in bad condition

    本方法通過對spiht編碼碼流重要性的不同而進行不同程度的保護，並利用通道的時變特性自適應地調整信源和通道編碼速率，從而在不增加額外帶寬的前提下有效地提高了系統的性能和可靠性，經過計算機模擬模擬，得出了在瑞利通道中，傳輸條件惡劣的情況下，本方法比eep和uep能更好的提高重建圖像的質量。
  11. In packet based wireless video communications, when best band distribution, not only source distortion should be considered, but also channel distortion caused by channel errors. the existing macroblock - layer rate control schemes calculates quantization parameters of all macroblocks ( mb ) in a frame in a raster scan order, and then encodes the mbs in the same order. actually, the quantization distortion is heavily dependent upon the coding order of mbs

    在基於包的無線視頻傳輸中，最佳帶寬分配時，不僅要考慮信源編碼失真，也要考慮由於通道差錯引起的通道失真；已有的宏塊層碼率控制演算法以矩陣掃描的順序計算一幀中所有宏塊的量化參數，事實上量化失真與宏塊的編碼順序有很大關系，改變宏塊的編碼順序，使復雜的宏塊分配到更多的比特數，顯然能大大提高編碼效率。
  12. This paper can put into four parts ? this first part is the description and theoretical analyses of source coding, which focus on the research of optimizing equal quantization ? the second part presents the theoretical description of joint channel - source coding, which focus on the research of combined channel - source coding o the third part is about the application of combined channel - source coding to two different channel models, binary symmetric channel and cdma channel o in this part, two different coding designs are given according to different characters of these two channels ? and the last part is the description of simulation of combined channel - source coding ? most of my work are about two parts, one is to find the most appropriate quantization steps and centroid points of separate channel - source coding, another is to simulate the combined channel - source coding ? comparing the simulation results of separate channel - source coding and combined channel - source coding, the characters of joint channel - source coding are given

    本論文可以分成四部分：第一部分給出了信源編碼的基本概念和理論分析，重點放在最優均勻量化編碼的研究方面；第二部分給出了通道?信源聯合編碼的原理敘述，重點放在復合式通道?信源編碼的分析研究上；第三部分將通道-信源聯合編碼原理應用在兩種噪聲通道上：離散無記憶通道和cdma通道，並根據兩種通道的不同特點詳細描述了兩種相應的編碼設計方案；第四部分給出了復合式通道-信源編碼的模擬結果以及對結果的相應分析。
  13. Is an open source code analysis tool that focuses on adherence to java coding conventions such as line length and indentation rather than bug patterns

    是一個開源代碼分析工具，側重於遵循java編碼約定（例如行長度和縮進）而不是bug模式。
  14. A general communication system, channel coding theorem and source - channel coding theorem

    通信系統的一般模型，通道編碼定理和信源通道編碼定理。
  15. With the support of hardware devices such as dsp chip, this arithmetic has effective application on complicated practice source coding. this paper alse applies wavelet to multicarrier modem / demodem transfer. the use of the induced wavelet package improves this arithmetic to search best wavelet package basis, and boosts up the support to multirate

    本文同時應用小波變換到多載波調制解調傳輸方面，通過推導出誘導小波包，改進最優小波包基搜索演算法，增強了對多碼率業務的支持性，在多載波傳輸系統中，是有效的提高信干比的方法。
  16. Voice information source coding and decoding technology of gsm system for mobile communication

    數字移動通信系統語音信源編解碼技術
  17. Briefly, this idea, known as the " separation principle ", states that " source coding " and " channel coding " can and should be performed independently

    這個假設被稱為獨立原則，簡單說就是信源編碼和通道編碼能夠獨立實現。
  18. The thesis is organized as follows : an overview of wireless and multimedia communication is presented and a wireless image communication system is proposed in chapter 1 ; chapter 2 makes a brief introduction on image signal capture device and related software implementation ; source coding is mainly studied in chapter 3, followed by in - depth modulation techniques studies in chapter 4

    第二章對視頻信號採集的硬體設備和軟體實現分別介紹；第三章介紹視頻信號的壓縮；第四章分析了用於視頻信號無線傳輸的硬體設備? ? orinoco無線網卡所採用的調制解調技術並介紹了網卡的工作原理。
  19. Wavelets are becoming a key technique in the ongoing source compression standard jpeg - 2000. the positive arguments for advocating dwt in image watermarking are : preventing watermark removal by jpeg - 2000 lossy compression, reusing previous studies on source coding regarding the visibility of image degradations, and offering the possibility of embedding in the compressed domain

    在小波域嵌入水印的原因是：可以防止由於jpeg - 2000有損壓縮而造成的水印消除；可以利用信源編碼領域對圖像失真的可見性研究成果控制水印的嵌入位置和強度；可以實現在壓縮域直接嵌入水印。
  20. Multiple description coding ( mdc ), an important source coding method that enables the reliable video transmission, can protect video against burst disturbance and has good performance of error concealment and error resilience

    多描述編碼（ mdc ）作為一種可以使視頻進行可靠傳輸的重要源編碼方法，能夠很好地抗突發干擾，在實現錯誤隱減和錯誤復原方面性能優良。
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