Via home and overseas digital trunking using instance , analyses the necessity of developing digital trunking mobile communication system common networks construction in china , as well as the necessity and feasibility of developing common networks digital trunking construction in chongqing . 通过国内外数字集群的使用情况,分析了在我国发展数字集群移动通信系统共网建设的必要性,以及重庆市发展共网数字集群建设的必要性和可行性。
The main focus of this paper is to design a general - purposed embedded video digital signal processor . aimed at the general - purposed nature to different kinds of algorithms of this system , network architecture of parallel - processing multi - processors is studied , and the bottleneck problem of the system common bus is solved , thus establishing a detailed project of the system . to achieve the stability of the system , the signal integrity problem in the printed circuit board ( pcb ) is studied as its theoretical background , and the design rules of the high - speed circuit pcb are summarized , which have been applied in actual systems , and thus achieving good effects 本文设计了一套通用的嵌入式视频数字信号处理器:针对系统对多种算法通用性要求研究了多处理器的并行处理网络结构,解决了该系统的总线瓶颈问题,并确定了系统的详细设计方案;针对系统对稳定性要求,在理论上研究了印刷电路板中的信号完整性问题,总结了高速电路印刷电路板的设计规则,并在实际系统中获得了应用,取得了很好的效果。