This paper analyses the procedure of designing the MP3 player under SOC-CDE environment, constructs a virtual component library based on digital stream application, and then elaborate on the methods and steps of creating a new virtual component as the examples of memory and USB controller. 分析了基于SOC-CDE环境进行MP3播放器设计的流程,构建了基于数字流媒体应用的虚部件库;并以存储器虚部件和USB控制器虚部件为例,详细说明了虚部件单元设计的方法和步骤。
The key parameters of the transmission of streaming media are bandwidth, delay, the jitter of the delay and the rate of packet loss, therefore the stream controller mainly controls packet_less ratio, delay and bandwidth. 影响流媒体传输的主要参数为带宽、延时、延时抖动和丢包率,流量模拟器主要对丢包率、延时和带宽等参数进行控制和调节。
This paper analyzes the dynamic characteristic of the controlled object of the stream pressure of CFB boiler, and presents a new design method of fuzzy auto-tuning pid controller based on of the stream pressure. 针对循环流化床燃烧控制系统的特点,以主蒸汽压力为被控对象,设计了一个模糊自校正PID控制器并进行了仿真研究。
Taking the ship as the firing platform, the ship-board rocket gun falls under the synthetical effects of wind, wave and stream, which influences the stability of the firing while the routine PID controller cannot be satisfactory to eliminate swing. 舰载火箭炮以舰船为射击平台,会受到风、浪、流等各种因素的综合作用。舰船的摇摆影响了射击线的稳定,采用常规的PID控制往往不能达到理想的消摇摆稳定效果。
A design of real-time video acquisition system based on FPGA is presented in this paper, video data stream is stored into SDRAM via video decoder, dual-port RAM and SDRAM controller. 设计了一种基于FPGA的视频实时采集系统,视频数据通过视频解码器、双口RAM、内存控制器,然后存入片外SDRAM中。
Complete the processing of video stream data. Carry out a method of pipeline controlling based on ping-pong operation for the design of the storage controller. 4. 实现了视频流数据的处理,为存储控制器的设计提出了基于乒乓操作的流水线控制方法。
Based on the analysis of VOD service process and service characteristics, we design and implement an open and scalable stream service environment ( OSSE). The cores of the OSSE are the two components: channel and channel controller. 在分析VOD服务流程和服务特性的基础上,我们设计实现了以频道和频道管理构件为核心的开放的可扩展的流化服务环境OSSE。