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为了简化IP核的设计过程,本文介绍了一种基于FPGA的中值滤波算法的IP核实现方法.针对FPGA 的特点对实现方法进行了研究,从而简化了复杂算法的IP核设计问题.实验结果表明,该IP核设计方法具有设计周期短,可靠性高等特点. 相似文献
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近年来随着科技的不断进步和发展,集成电路的也在不断发展,呈现出来愈加复杂的趋势,所以芯片的设计也不断的出现了功能的增强、集成程度的提高的发展的趋势。系统芯片SoC成为当下主流的趋势下,IP核也在飞速发展。IP核也就是知识产权IP,分为软核IP、固核IP、硬核IP,其中软核IP以其灵活性高的优点,在复杂的设计中有较强的优势。但是在IP软核的实际应用中,也存在很大的困难和挑战,因此为了能更好的对IP软核进行应用,对IP核进行测试和验证具有重大的意义。文中通过对IP软核的特点进行概述,进而对IP软核的测试和验证方法进行研究,提出方案,以促进IP软核的应用及发展。 相似文献
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Altera公司的Reed-Solomon(RS)IP核功能强大,但使用该IP核需要进行握手信号的设计。介绍了一种基于IP核来实现RS编译码器的设计方法。分析了RS编译码器IP核握手信号的时序原理,并设计了相应的信号产生模块。介绍了RS IP核的参数配置和使用方法,并提供了整体的模块电路。为验证设计的正确性,对编译码器进行了时序仿真。针对具有最大误码的连续编码数据流进行纠错性能测试。时序仿真结果表明,该译码器能实现最大的纠错性能。 相似文献
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基于IP核的FPGA FFT算法模块的设计与实现 总被引:1,自引:0,他引:1
介绍了一种基于IP核的FFT算法的设计与实现方法。FFT IP核允许设置不同的计算参数与结构,可以方便灵活地实现FFT算法。详细分析了FFT IP核的各个参数的意义。研究结果表明,应用FFT IP核能够设计出符合不同性能要求的高性能的傅里叶变换处理模块,缩短开发周期,节约成本。 相似文献
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以集成电路的快速发展与广泛应用为契机,针对FPGA开发过程中IP软核可复用的特点,提出一种提升FPGA嵌入式块存储器工作频率的IP软核设计方法。利用软件对不同读写类型和不同输入位宽的数据进行预处理,获取所需的硬件资源开销,并生成相应的硬件描述语言。IP软核设计时,在使用固定硬件资源的情况下,通过优化数据预处理方法,以及改变在综合阶段布局布线的处理结果,提高了工作频率。对设计的IP软核进行测试验证,结果表明,该设计方法生成的IP软核的功能和性能指标均符合设计要求,其工作频率最高可提升25.56%。 相似文献
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结合我国的实际情况,提出了三种引入ATM技术的Internet网络方案,并为以ATM交换机为主的网络方案,设计具有IP电话、视频点播(VOD)等宽带业务的局域网拓扑结构。 相似文献
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Ahmed H.M. Gallon R. Malis Moy J. 《Proceedings of the IEEE. Institute of Electrical and Electronics Engineers》1997,85(12):1984-1997
Internet protocol (IP) switching is emerging as a critical technology for improving the speed and scalability of the Internet. This paper discusses IP Navigator, a form of IP switching developed specifically for use in core network backbones, such as Internet service provider networks and major corporate backbones. IP Navigator combines the high speed and quality of service capabilities of asynchronous transfer mode (ATM) with the scalability and flexibility of IP. This paper presents an overview of the techniques that have been developed for operating IP over ATM. We outline the IP Navigator design and compare IP Navigator with other IP switching approaches 相似文献
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A wireless ATM system consists of a core network infrastructure that provides mobility support to end terminals and a wireless access link. This article outlines two schemes for supporting mobility of IP terminals in this network. In the first scheme, location management and handoff support is integrated within the ATM signaling and control framework (“mobile ATM”), and mobility is transparently supported at the IP layer by mobile ATM underneath. In the second approach, the IP protocol stack is directly executed on ATM switches (without an intermediate ATM signaling stack) using an IP switching technique called IPSOFACTO (IP Switching Over Fast ATM Cell Transport), and terminal mobility is supported via mobile IP 相似文献
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Services supported by asynchronous transfer mode account for the majority of data and Internet service revenues generated by carrier networks today. This is based on ATM's ability to support high availability services with quality of service. However, the influences of the Internet and a highly dynamic telecommunications market have raised demands for increased flexibility while controlling costs. Therefore, future carrier networks are likely to continue to be based on established technologies, such as ATM, as well as IP. In many cases, this is achieved through maintaining separate ATM and IP core networks, with the IP network supporting Internet services, while the ATM network continues to support guaranteed services such as private lines, broadband access, and video. In some cases, however, it can be advantageous for a carrier to transport segments of their ATM network over their IP network core; for example, to transport ATM traffic currently carried on leased facilities onto an IP network where the service provider owns the facilities. Developments in IP and MPLS-based traffic engineering and QoS may increase the ability of IP-based networks to support ATM services using MPLS. This article provides an overview of approaches enabling a network based on MPLS that naturally supports IP services to also support ATM services. The drivers and requirements for convergence on an IP/MPLS core network are presented, followed by an overview of the different approaches and associated challenges currently being debated in the standards bodies. 相似文献
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WCDMA核心网信令系统对七号信令网的影响 总被引:1,自引:0,他引:1
BICC和GCP是第三代移动网络中必不可少的信令,主要支持的承载网络是ATM和IP,许多厂商也侧重开发ATM和IP传输技术。在中国未来几年逐渐开展3G移动业务后,GSM网络的业务也可以逐渐连接到3G核心网络中,GSM也会支持分层网络,使用比STM更经济的IP作为传输,原来七号信令网络中的流量就会逐渐减少。在设计3G七号信令网络时,需要考虑3G网络信令对传输的要求,为将采用的新技术进行准备。 相似文献
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We have prototyped and have begun to experiment with an extremely flexible ATM cell store. The cell store accommodates 16 K ATM cells and allows complete software control of the buffer management strategy. The prototype was designed to serve as an output port in an experimental ATM switch, but has also been used as a stand-alone component in several research ATM networks. It is envisioned that the cell store will aid in the realization of queueing strategies capable of supporting emerging ATM and IP service models. This paper describes the motivation, background, detailed design, and an application of the ATM cell store 相似文献
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城市信息化离不开城市信息高速公路 ,宽带城域网的建设为城市信息化提供了高速通道。IP网和ATM网将是宽带城域网的核心平台 ,宽带接入技术将成为城域网接入的主要手段 ,宽带城域网整体解决方案离不开IP软技术的应用 ,三网融合将是宽带城域网发展方向。增值业务是网络不断发展的动力所在 相似文献