信息码 meaning in Chinese
character code
information code
Examples
- One of the two possible conditions of an informationelement ( bit )
信息码元(比特)的两个可能状态之一。 - In the end , implementation of if digital receiver unit of tdrss user transponder by the method of fpga and dsp cooperation design are completed successfully , which leads to good ds - ss if receiver design for the signal whose carrier frequency is 3mhz , pseudorandom code rate is 3mchips / s , data rate is 10kbps , frequency offset is no more 1khz , and modulation mode is bpsk
最后，完成了该中频数字接收机设计，并对其进行调试和测试。测试结果表明，该接收机能对载频为3mhz ，频偏不大于1khz ，伪随机码速率为3mchips / s ，信息码速率为10kbps ， bpsk调制的直接序列扩频中频信号进行接收，基本满足设计要求。 - If no errors occur in it , the parity check part itself can retrieve the information by invertible process . if errors occur , the parity check part will be combined with the previously received information part to build an error - correction code , and try to recover the information . this kind of harq can match channel states very well
该harq将信息码字和校验码字分开传送，信道状态较好时只传送信息码字；信道变差时才要传送校验码字，校验码字可单独或与信息码字一起将信息恢复出来，因此这种结构对信道有较好的适应性。 - As the information era proceeds , highly developed digital image processing technique and communication technique make multimedia communication possible , and it is now on the way of progress . video conference have received more attention as an example of multimedia . in this paper we first describe the construction and characteristic of the video conference system and analyze the theory of protocol with itu - t h . 323 recommendation which inculde video and audio codec standard , communication control protocol h . 245 . call signalling protocol h . 225 , as well as procedures within these protocols define how these components communicate . also an experimental video conferencing system is designed and some relating key technologies are studied , which include multithread programming , transmission technology , mcu technology , qos mechanism and so on . especially , a video codec based on h . 263 recommendation with high fram rate as well as high compression ratio is researched and implemented because of importance of video application , which solves the bad image reconstrction quality problem existed in the most present video systems that adopt h . 261 video compression algorithm . by using these technologies . a video conferencing system is implemented based on lan . the system that the paper provides is easy to implement and the results of exmperiment is good . such system can be widely used in the fields such as business conference , distance education etc . and it is of good practical value
随着信息时代的前进，数字图像处理技术和通信技术的高度发展，多媒体通信已成为可能并已初具规模，视频会议作为它的一个具体应用实例受到普遍关注。本文首先对国际电信联盟itu - t制定的基于分组交换的多媒体通信h . 323系列建议进行了阐述，其中包括ip网络视频会议系统的结构组成、视频传输标准、音频传输标准、系统的信息码流、通信控制协议h . 245和呼叫信令协议h . 225以及会议系统的进行过程。在此基础上给出了ip视频会议的实现的整体框架，为系统的软件实现进行了模块的划分和整体设计，分析了各个模块的功能、作用。