1.Three kind of channel encode/decode technologies are researched which are TCM(Trellis Coded Modulation) and Viterbi decode, Reed-Solomn encode/decode and CRC(Cyclic Redundancy Check).
重点研究了ADSL系统的信道差错控制编码技术,包括Viterbi译码、Reed_Solomn译码和CRC校验(循环冗余校验)。
2.As this design support High-definition and Standard-definition video streams, there would be a lot of datas, if we use the structure, which can only decode one bit per cycle, it will not achive the aim to decode High-definition and Standard-definition video streams in real-time, so we adopt the Barrel-Shifter and accumulator based on parallel structure, in order to increase the decoding speed.
由于本设计支持高清晰度和标准清晰度的视频码流,数据量大,一次一位的串行结构不能够实现实时解码,所以在本设计中,我们采用了桶型移位器和累加器的组合来实现并行结构,以获得更高的解码速度。
3.Though the analysis, simplify, fixed-point processing and the modification faced the characteristics of MD16 to the AAC decode procedure, the AAC LC decode processing is realized based on MD16.
通过对AAC解码程序的分析、简化、定点化以及面像MD16特点的处理,在MD16上初步实现了AAC LC的解码。
4.DVI(Digital Visual Interface) Encode/decode Circuit Study and Design
DVI数字视频接口编解码电路的研究与设计
5.Of course, security and encryption also come into play, since the proxy must be able to open the "package" to look at it or decode its contents.
当然，由于代理必须有能力打开“包”，看看其内部或者对其内容进行译码，所以安全和加密也随之而来。
6.The decode process requires an explicit definition of which encoding the input string is "encoded" in. Otherwise, the system level default encoding will be used.
解码时,需要显示的定义输入的字符串是以何种编码方式编码的.否则,系统默认的编码方式会被作为默认值使用.
7.Decoded video signal is placed into frame buffer to capture video signal, decode or detect motion under the control of DSP, then detected image and motion results are transmitted by S3C4516 to guarantee visit of embedded video surveillance system via internet from client.
解码后的视频信号被放入帧缓存中,在DSP的控制下进行信号采集、编码或进行运动检测,然后由S3C4510B 将图像或运动检测结果进行传输,客户端可以通过网络访问本监控系统。
8.the design of the digital channel includes the analysis of AES/EBU format digital signal, and it also includes that how to use the digital audio interface chipset, CS8420, to decode the input digital audio signal and to convert its sample-rate;
数字通道的设计包括了对AES/EBU标准数字信号格式的分析,以及如何使用数字音频接口芯片CS8420将输入的数字信号进行解码,以提取出其中的数字音频信号,并进行采样率转换;
9.The result indicates that the decoder requires 25.51 MIPS to decode 128Kbps, 44.1KHz 2-channel AAC LC with TNS (Temporal Noise Shaping) in real-time and the average CPI is 1.29, which is indicates that RISC3201 is configurable and the core can be used easily as an embedded microprocessor core.
实验表明,当系统运行在40MHz时RISC32能够对128Kbps,44.1KHz双声道AAC LC进行实时解码,运算量为25.5MIPS(Million instructions per second),平均CPI值为1.29。
10.Be example of (23, 12: 7) Golay grop code, the detailed decode method with Song Zhong—Xiong decoder circuit is discribed, and, pointe out the insufficient of (23, 12: 7) error correction code.
文中以(23,12:7)GOLAY分组码为例,采用嵩忠雄译码器电路,较详尽地对GOLAY码的译码方法进行了论述,指出了(23,12:7)纠错编码的不足之处;
