Spring中提供一些Aware相關(guān)的接口，BeanFactoryAware、 ApplicationContextAware、ResourceLoaderAware、ServletContextAware等等，其中最常用到的是ApplicationContextAware。實(shí)現(xiàn)ApplicationContextAware的Bean，在Bean被初始后，將會(huì)被注入 ApplicationContext的實(shí)例。ApplicationContextAware提供了publishEvent()方法，實(shí)現(xiàn)Observer(觀察者)設(shè)計(jì)模式的事件傳播機(jī)，提供了針對Bean的事件傳播功能。通過Application.publishEvent方法，我們可以將事件通知系統(tǒng)內(nèi)所有的ApplicationListener。
上傳時(shí)間： 2014-01-01
上傳用戶：erkuizhang
Context-based adaptive binary arithmetic coding in the H.264AVC video compression standard
標(biāo)簽： Context-based compression arithmetic adaptive
上傳時(shí)間： 2016-07-16
上傳用戶：123啊
Shape registration by shape context: algorithm implemented by matlab and the paper. One of the best point matching algorithm after 2000.
標(biāo)簽： registration implemented algorithm the
上傳時(shí)間： 2016-10-20
上傳用戶：1583060504
JTAG Tools is a software package which enables working with JTAG-aware (IEEE 1149.1) hardware devices (parts) and boards through JTAG adapter.
標(biāo)簽： JTAG-aware hardware software enables
上傳時(shí)間： 2016-10-20
上傳用戶：520
Using the idea from Seam Carving for Content-Aware Image Resizing, the codes enables a selected image to resize without having distortion of important object in the image file.
標(biāo)簽： Content-Aware the Resizing selected
上傳時(shí)間： 2017-03-21
上傳用戶：thuyenvinh
This paper presents a new adaptive mobility-aware MAC protocol for sensor networks (MS-MAC). The protocol uses any change in received signal level as an indication of mobility and, when necessary, triggers the mobility handling mechanism. By doing this way, the new mobility-aware MAC protocol can work very energy-efficiently when the network is stationary, whereas it can maintain some level of network performance when there are mobile sensors.
標(biāo)簽： mobility-aware adaptive networks presents
上傳時(shí)間： 2014-01-11
上傳用戶：libenshu01
LAND COVER CLASSIFICATION OF RURAL AREAS USING LIDAR DATA: A COMPARATIVE STUDY IN THE CONTEXT OF FIRE RISK
標(biāo)簽： CLASSIFICATION COMPARATIVE CONTEXT COVER
上傳時(shí)間： 2017-09-17
上傳用戶：小寶愛考拉
H.264/AVC是國際電信聯(lián)盟與國際標(biāo)準(zhǔn)化組織/國際電工委員會(huì)聯(lián)合推出的活動(dòng)圖像編碼標(biāo)準(zhǔn)，簡稱H.264。作為最新的國際視頻編碼標(biāo)準(zhǔn)，H.264/AVC與MPEG-4、H.263等視頻編碼標(biāo)準(zhǔn)相比，性能有了很大的提高，并已在流媒體、數(shù)字電視、電話會(huì)議、視頻存儲(chǔ)等諸多領(lǐng)域得到廣泛的應(yīng)用。 本論文的研究課題是基于H.264/AVC視頻編碼標(biāo)準(zhǔn)的CAVLC(Context-based Adaptive Variable Length Coding，基于上下文的自適應(yīng)可變長編碼)編碼算法研究及FPGA實(shí)現(xiàn)。對于變換后的熵編碼，H.264/AVC支持兩種編碼模式：基于上下文的可變長編碼(CAVLC)和基于上下文的自適應(yīng)算術(shù)編碼(CABAC，Context-based Adaptive BinaryArithmetic Coding)。在H.264/AVC中，盡管CAVLC算法也是采用了VLC編碼，但是同以往標(biāo)準(zhǔn)不同，它所有的編碼都是基于上下文進(jìn)行。這種方法比傳統(tǒng)的查單一表的方法提高了編碼效率，但也增加了設(shè)計(jì)上的困難。 作者在全面學(xué)習(xí)H.264/AVC協(xié)議和深入研究CAVLC編碼算法的基礎(chǔ)上，確定了并行編碼的CAVLC編碼器結(jié)構(gòu)框圖，并總結(jié)出了影響CAVLC編碼器實(shí)現(xiàn)的瓶頸。針對這些瓶頸，對CAVLC編碼器中的各個(gè)功能模塊進(jìn)行了優(yōu)化設(shè)計(jì)，這些優(yōu)化設(shè)計(jì)包括多參考塊的表格預(yù)測法、快速查找表法、算術(shù)消除法等。最后，用Verilog硬件描述語言對所設(shè)計(jì)的CAVLC編碼器進(jìn)行了描述，用EDA軟件對其主要功能模塊進(jìn)行了仿真，并在Cyclone II系列EP2C20F484的FPGA上驗(yàn)證了它們的功能。結(jié)果表明，該CAVLC編碼器各編碼單元的編碼速度得到了顯著提高且均能滿足實(shí)時(shí)通信要求，為整個(gè)CAVLC編碼器的實(shí)時(shí)通信提供了良好的基礎(chǔ)。
上傳時(shí)間： 2013-06-22
上傳用戶：diamondsGQ
H.264/AVC是國際電信聯(lián)盟與國際標(biāo)準(zhǔn)化組織/國際電工委員會(huì)聯(lián)合推出的活動(dòng)圖像編碼標(biāo)準(zhǔn)，簡稱H.264。作為最新的國際視頻編碼標(biāo)準(zhǔn)，H.264/AVC與MPEG-4、H.263等視頻編碼標(biāo)準(zhǔn)相比，性能有了很大的提高，并已在流媒體、數(shù)字電視、電話會(huì)議、視頻存儲(chǔ)等諸多領(lǐng)域得到廣泛的應(yīng)用。 本論文的研究課題是基于H.264/AVC視頻編碼標(biāo)準(zhǔn)的CAVLC(Context-based Adaptive Variable Length Coding，基于上下文的自適應(yīng)可變長編碼)編碼算法研究及FPGA實(shí)現(xiàn)。對于變換后的熵編碼，H.264/AVC支持兩種編碼模式：基于上下文的可變長編碼(CAVLC)和基于上下文的自適應(yīng)算術(shù)編碼(CABAC，Context-based Adaptive BinaryArithmetic Coding)。在H.264/AVC中，盡管CAVLC算法也是采用了VLC編碼，但是同以往標(biāo)準(zhǔn)不同，它所有的編碼都是基于上下文進(jìn)行。這種方法比傳統(tǒng)的查單一表的方法提高了編碼效率，但也增加了設(shè)計(jì)上的困難。 作者在全面學(xué)習(xí)H.264/AVC協(xié)議和深入研究CAVLC編碼算法的基礎(chǔ)上，確定了并行編碼的CAVLC編碼器結(jié)構(gòu)框圖，并總結(jié)出了影響CAVLC編碼器實(shí)現(xiàn)的瓶頸。針對這些瓶頸，對CAVLC編碼器中的各個(gè)功能模塊進(jìn)行了優(yōu)化設(shè)計(jì)，這些優(yōu)化設(shè)計(jì)包括多參考塊的表格預(yù)測法、快速查找表法、算術(shù)消除法等。最后，用Verilog硬件描述語言對所設(shè)計(jì)的CAVLC編碼器進(jìn)行了描述，用EDA軟件對其主要功能模塊進(jìn)行了仿真，并在Cyclone II系列EP2C20F484的FPGA上驗(yàn)證了它們的功能。結(jié)果表明，該CAVLC編碼器各編碼單元的編碼速度得到了顯著提高且均能滿足實(shí)時(shí)通信要求，為整個(gè)CAVLC編碼器的實(shí)時(shí)通信提供了良好的基礎(chǔ)。
上傳時(shí)間： 2013-06-04
上傳用戶：libenshu01
Radio Frequency Integrated Circuit Design I enjoyed reading this book for a number of reasons. One reason is that itaddresses high-speed analog design in the context of microwave issues. This isan advanced-level book, which should follow courses in basic circuits andtransmission lines. Most analog integrated circuit designers in the past workedon applications at low enough frequency that microwave issues did not arise.As a consequence, they were adept at lumped parameter circuits and often notcomfortable with circuits where waves travel in space. However, in order todesign radio frequency (RF) communications integrated circuits (IC) in thegigahertz range, one must deal with transmission lines at chip interfaces andwhere interconnections on chip are far apart. Also, impedance matching isaddressed, which is a topic that arises most often in microwave circuits. In mycareer, there has been a gap in comprehension between analog low-frequencydesigners and microwave designers. Often, similar issues were dealt with in twodifferent languages. Although this book is more firmly based in lumped-elementanalog circuit design, it is nice to see that microwave knowledge is brought inwhere necessary.Too many analog circuit books in the past have concentrated first on thecircuit side rather than on basic theory behind their application in communications.The circuits usually used have evolved through experience, without asatisfying intellectual theme in describing them. Why a given circuit works bestcan be subtle, and often these circuits are chosen only through experience. Forthis reason, I am happy that the book begins first with topics that require anintellectual approach—noise, linearity and filtering, and technology issues. Iam particularly happy with how linearity is introduced (power series). In therest of the book it is then shown, with specific circuits and numerical examples,how linearity and noise issues arise.
標(biāo)簽： Rogers Radio John Freq
上傳時(shí)間： 2014-12-23
上傳用戶：han_zh
蟲蟲下載站版權(quán)所有 京ICP備2021023401號-1
