窄頻帶電視 的英文怎麼說
中文拼音 [zhǎibīndàidiànshì]
窄頻帶電視
英文
narrow band television- 窄 : 形容詞1. (橫的距離小) narrow 2. (心胸不開朗; 氣量小) petty; narrow 3. (不寬裕) hard up; badly off; short of
- 頻 : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 視 : Ⅰ動詞1. (看) look at 2. (看待) regard; look upon 3. (考察) inspect; watch Ⅱ名詞(姓氏) a surname
- 電視 : television; t. v. ; teevee
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In the past few years, there has been significant interest in digital video applications like video conferencing and video e - mailing over internet, video telephony over public switched telephone networks ( pstn ) and wireless networks, etc. by removing spatio - temporal redundancies existing in adjacent frames, motion estimation can reduce the coding bit - rate significantly
低速率視頻編碼技術已在許多領域得到了應用,如在pstn (公共電話網) 、無線網、 n - isdn (窄帶綜合業務數字網) 、 b - isdn (寬帶綜合業務數字網)上傳輸視頻會議、可視電話和無線手持終端等。This master ’ s degree thesis firstly introduces and discusses the principle of ofdm and the merged blue print for digital terrestrial television broadcasting in china, then proposes a scheme for the test platform of narrowband ldpc decoding efficiency based on fpga. this scheme includes techniques such as time - domain synchronization using pn and power estimation using pilots
本論文首先介紹並討論了數字電視傳輸標準tds - ofdm的實現原理,對其中的一些關鍵問題做了詳細的分析,在此基礎上提出了一種基於fpga的窄帶ldpc解碼-誤碼測試平臺設計方案,即利用時域pn頭同步及頻域導頻進行功率估計的fpga設計。
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