INTERFACES FOR DIGITAL COMPONENT VIDEO SIGNALS IN 525-LINE AND 625-LINE TELEVISION SYSTEMS OPERATING AT THE 4:2:2 LEVEL OF RECOMMENDATION ITU-R BT.601
標(biāo)簽: LINE INTERFACES TELEVISION COMPONENT
上傳時(shí)間: 2014-01-25
上傳用戶:trepb001
數(shù)字電視接收設(shè)備術(shù)語(yǔ)(Terminology of digital TELEVISION receiving equipment)
標(biāo)簽: Terminology TELEVISION equipment receiving
上傳時(shí)間: 2014-07-23
上傳用戶:JIUSHICHEN
This book discusses the growth of digital TELEVISION technology and the revolution in image and video compression, highlighting the need for standardization in processing static and moving images and their exchange between computer systems
標(biāo)簽: TELEVISION technology revolution and
上傳時(shí)間: 2015-12-23
上傳用戶:ommshaggar
Digital broadcasting systems for TELEVISION, sound and data services Framing structure, channel coding and modulation for 11/12 GHz satellite services
標(biāo)簽: broadcasting TELEVISION structure services
上傳時(shí)間: 2016-01-03
上傳用戶:rishian
STUDIO ENCODING PARAMETERS OF DIGITAL TELEVISION FOR STANDARD 4:3 AND WIDE-SCREEN 16:9 ASPECT RATIOS
標(biāo)簽: WIDE-SCREEN PARAMETERS TELEVISION ENCODING
上傳時(shí)間: 2013-12-08
上傳用戶:凌云御清風(fēng)
INTERFACES FOR DIGITAL COMPONENT VIDEO SIGNALS IN 525-LINE AND 625-LINE TELEVISION SYSTEMS OPERATING AT THE 4:2:2 LEVEL OF RECOMMENDATION ITU-R BT.601 (PART A)
標(biāo)簽: LINE INTERFACES TELEVISION COMPONENT
上傳時(shí)間: 2013-12-14
上傳用戶:xiaoxiang
programming microsoft directshow for digital video and TELEVISION
標(biāo)簽: programming directshow TELEVISION microsoft
上傳時(shí)間: 2013-12-18
上傳用戶:洛木卓
Monochrome and Colour TELEVISION by R.R. Gulati (z-lib.org).pdf
標(biāo)簽: 彩電
上傳時(shí)間: 2022-01-16
上傳用戶:
數(shù)字電視按傳輸方式分為地面、衛(wèi)星和有線三種。其中,DVB-S和DVB-C這兩個(gè)全球化的衛(wèi)星和有線傳輸方式標(biāo)準(zhǔn),目前已作為世界統(tǒng)一標(biāo)準(zhǔn)被大多數(shù)國(guó)家所接受。而對(duì)于地面數(shù)字電視廣播標(biāo)準(zhǔn),經(jīng)國(guó)際電訊聯(lián)盟(ITU)批準(zhǔn)的共有三個(gè),包括歐盟的DVB-T(Digital Video Broadcasting-Terrestrial,數(shù)字視頻地面廣播)標(biāo)準(zhǔn)、美國(guó)的ATSC(Advanced TELEVISION System Committee,先進(jìn)電視制式委員會(huì))標(biāo)準(zhǔn)和日本的ISDB-T(Terrestrial Integrated Services DigitalBroadcasting,綜合業(yè)務(wù)數(shù)字廣播)標(biāo)準(zhǔn)。綜合比較起來(lái),歐洲的DVB-T標(biāo)準(zhǔn)在技術(shù)及應(yīng)用實(shí)踐上都更加成熟。 本論文首先介紹了DVB-T系統(tǒng)的主要結(jié)構(gòu),針對(duì)DVB-T標(biāo)準(zhǔn)中各模塊的實(shí)現(xiàn)進(jìn)行了闡述,并根據(jù)發(fā)射機(jī)端各個(gè)模塊討論了接收機(jī)端相關(guān)模塊的算法設(shè)計(jì)。 隨后,論文給出了基于Microsoft Visual Studio 2005平臺(tái)實(shí)現(xiàn)的數(shù)字電視基帶信號(hào)產(chǎn)生與接收的軟件仿真系統(tǒng)的總體設(shè)計(jì)流程,重點(diǎn)討論了內(nèi)編解碼器和內(nèi)交織/解交織器的算法與實(shí)現(xiàn),并在實(shí)現(xiàn)的多參數(shù)可選的數(shù)字電視基帶信號(hào)產(chǎn)生與接收軟件仿真平臺(tái)上,重點(diǎn)分析了內(nèi)編/解碼模塊在接收端Viterbi譯碼算法中采用硬判決、簡(jiǎn)化軟判決以及不同調(diào)制方式時(shí)對(duì)DVB-T系統(tǒng)整體性能的影響。 最后,論文討論了內(nèi)碼譯碼算法的實(shí)現(xiàn)改進(jìn),使得Viterbi譯碼更適合在FPGA上實(shí)現(xiàn),同時(shí)針對(duì)邏輯設(shè)計(jì)進(jìn)行優(yōu)化以便節(jié)省硬件資源。論文重點(diǎn)討論了對(duì)幸存路徑信息存儲(chǔ)譯碼模塊的改進(jìn),比較了此模塊三種不同的實(shí)現(xiàn)方式帶來(lái)的硬件速率和資源的優(yōu)劣,通過(guò)利用4塊RAM對(duì)幸存路徑信息的交互讀寫,完成了對(duì)傳統(tǒng)回溯算法的改進(jìn),實(shí)現(xiàn)了加窗回溯的譯碼輸出,同時(shí)實(shí)現(xiàn)了回溯長(zhǎng)度可配置以實(shí)現(xiàn)系統(tǒng)不同的性能要求。
上傳時(shí)間: 2013-08-02
上傳用戶:遠(yuǎn)遠(yuǎn)ssad
·詳細(xì)說(shuō)明:韓國(guó)移動(dòng)電視的測(cè)試源樣本, 是H264和AAC打包的- South Korea moves the TELEVISION the test source sample, is H264 and AAC packs
標(biāo)簽: H264 AAC 韓國(guó) 移動(dòng)電視
上傳時(shí)間: 2013-05-28
上傳用戶:thuyenvinh
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