编解码系统的英文

• pcm

• "编"英文翻译    weave; plait; braid
• "解码"英文翻译    decoding; decipher; decode
• "系统"英文翻译    system
• "编解码" 英文翻译 :    avs; coding decoding; video codec
• "编解码技术" 英文翻译 :    asdl
• "编解码器" 英文翻译 :    codec coder decoder
• "视频编解码" 英文翻译 :    video encoding and decoding
• "网格编解码" 英文翻译 :    coding/decoding of network lattice
• "编解码算法数" 英文翻译 :    mfcc
• "视频编解码器" 英文翻译 :    video codec
• "信源编解码器" 英文翻译 :    source codec
• "音频编解码器" 英文翻译 :    audio codec
• "语音编解码器" 英文翻译 :    audio coder & decoder
• "矩阵四通道编码一解码系统" 英文翻译 :    matrix four channel encoder decoder system
• "数字电视接收与解码系统芯片在和舰" 英文翻译 :    hjtc
• "视频信号编解码" 英文翻译 :    video code
• "双速率编解码器" 英文翻译 :    dual rate codec
• "信道编解码单元" 英文翻译 :    channel codec unit
• "以及音频编解码器" 英文翻译 :    ac97 codec
• "音频压缩和编解码" 英文翻译 :    audio compression and codec
• "语音编解码算法" 英文翻译 :    voice coding/decoding algorithms
• "预编解释系统" 英文翻译 :    preedited interpretive system; pre-editedinterpretivesystem
• "编码系统" 英文翻译 :    coded system; encoder system; encoding system
• "编密码系统" 英文翻译 :    encryption system
• "磁编码系统" 英文翻译 :    magnetic encoded system

• Pcm encoder decoder system for audio recording
  音频记录pcm编解码系统
• This thesis first narrate h . 263 + encode / decode structure , then briefly teli of the progress of error resilience
  263 +编解码系统结构。其次，总体上描述了差错恢复技术。
• A h . 263 real - time video coding system based on dsp chip is then designed which follows the develop flow of a dsp system
  然后按照dsp系统的开发流程，设计开发了一个基于dsp芯片的h . 263实时视频压缩编解码系统。
• The experimental results manifest that the psnr of both the full reconstructed video sequences and the ones of frame rates changed are improved compared to the system base on haar wavelet . moreover , the decoding time of db2 filters is shorter than the haar one , the shorter the decoding time , the better the real - time displaying in the client side
  实验结果表明,本系统与基于haar小波的可伸缩性视频编解码系统相比,完全重建的视频图像质量和帧速率改变后的重建视频图像质量都有了明显的提高,并且解码时间也有所缩短,具备了更好的实时性。
• Speech coding systems are generally based on narrowband speech at present , but its frequency is restricted in 200hz ~ 3400hz and its sample rate is 8khz . with the development of the wideband speech , its bandwidth which is from 50hz to 7khz causes the quality of speech communication to approach in the feeling of face - to - face conversation , and makes the speech natural , expressive and comfortable . hence , it ’ s quite significant in researching on wideband speech coding system . in recent 20 years , the dsp and its software development kit has improved greatly , but the price has fallen sharply , thus it has more and more widespread applications now
  随着当今世界的飞速发展,宽带语音越来越受到人们的青睐,因为它的50hz 7khz的带宽使得语音通讯质量接近于面对面交流的感觉,大大提高了语音的自然度、表现力和舒适度。因此,开发研制基于宽带语音的编解码系统具有十分重要的意义。在过去的短短二十年里, dsp处理器的性能得到很大的改善,软件和开发工具也得到相应的发展,价格却大幅度地下降,从而得到越来越广泛的应用。
• 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
  结合vts系统的现实要求和发展方向，本文从vts雷达原始视频图像数据的特点出发，从信息论中关于数据压缩的基本原理出发，从现代信号处理特别是图像信息处理领域中的压缩编码国际标准出发，提出了雷达原始视频编解码系统方案，其主体部分? ?编解码器是在pc机内利用压缩软件实现，阐述了系统工作流程；提出了基于jpeg压缩算法和h
• After completing the mctf using db2 wavelet , it is well integrated with discrete wavelet transform ( dwt ) and embedded zero tree wavelet . it uses atom structure to organize the coded bit - stream to achieve the brilliant combination of three scalabilities : temporal , spatial and psnr scalabilities . and the software platform is based on vc + + 6 . 0
  在基于db2小波的运动补偿时域滤波方法实现之后,本文将之和离散小波变换( dwt ) 、嵌入式零树编码进行有机结合,并采用基于基本原子粒的数据流组织结构将分层后的数据流有效地组织起来,实现了具有时间、空间、质量三方面的完整可伸缩性的编解码系统,系统的软件平台基于vc + + 6 . 0实现。
• Finally , basing on the above theory research and the existing hardware scheme , the optimization probabilities is discussed among the layers of the standard entrails , arithmetic promotions and program optimizations . the optimizations are carried out in the software simulation circumstance , and obtain a notable effect , which boosts the coding speed by 60 % with the same image quality , showing an applying prospect
  最后,在以上的理论研究基础上,结合现有的硬件方案,从标准内部、算法改良和程序优化等多个层面上探讨了对视频编解码系统的优化可能,并在软件仿真的环境下付诸于实践,取得了明显的效果,在保证图像质量的前提下,将编码速度提高了约60 % ,显示出了一定的实际应用前景。