Trends in multicore DSP platforms

Multicore digital signal processors (DSPs) have gained significant importance in recent years due to the emergence of data-intensive applications, such as video and high-speed Internet browsing on mobile devices that demand increased computational performance but lower cost and power consumption. Multicore platforms allow manufacturers to produce smaller boards while simplifying board layout and routing, lowering power consumption and cost, and maintaining programmability.     

中国DSP市场展现新格局

2002年,在全球半导体市场回暖缓漫和应用市场需求持续低迷的双重压力下,DSP市场尚未实现全面复苏,仍处于2001年严重衰退后的恢复阶段。2002年全球DSP市场表现为小幅增长。此外,由于有线通信市场的欠佳表现,2002年无线通信领域在全球DSP应用市场中的占有率进一步上升。与全球市场缓慢复苏相反,2002年中国DSP市场在相应需求强力增劲的带动下,继续保持了较好的发展态势。2002年中国DSP芯片市场仍旧由TI、摩托罗拉、Agere、ADI等几大国际巨头占领。中国DSP的应用开发也已有了相当的基础,目前有10多家集成电路设计企业从事     

现代通信中的DSP：面临的挑战及未来发展趋势

本文介绍了ＤＳＰ（数字信号处理器）在通信领域的应用现状和新动向，同时指出了ＤＳＰ为适应现代通信技术发展的需要所面临的挑战，最后对新一代ＤＳＰ的特点和未来趋势作了总结归纳。     

Component-based development of radio systems and subsystems: Are we there yet? [Trends in DSP]

The June 2005 "Trends in DSP" column explored the concept of component-based development for radio systems and subsystems. In this model the intermediate frequency (IF) and baseband signal processing associated with each wireless air interface standard on a given radio product are created from encapsulated software, hardware, and firmware intellectual property (IP) that can be reused from product to product.     

Stratix器件中的DSP模块极大提升DSP性能

StratixTM器件中的数字信号处理(DSP)模块采用的高性能嵌入式DSP单元专门针对DSP应用而优化。这些应用包括里克(Rake)接收器、因特网协议(IP)语音传输(VoIP)网关、正交频分复用(OFDM)收发器、图像处理应用和多媒体娱乐系统。 Stratix DSP模块消除了DSP应用中的性能瓶颈,提供了可预测的性能并且节约了资源。这一灵活性使得Stratix器件中的DSP模块非常适合实现复杂的DSP系统,同时还可提供很高的数据吞吐能力。     

实时操作系统DSP/BIOS在DSP开发中的应用

本文介绍了实时操作系统DSP/BIOS在DSP开发中的应用。首先简述了DSP应用的一般模型,并说明了实时操作系统在DSP外设管理,实时性能分析,程序总体流程控制中的应用。     

Directions in DSP processors

The evolution of single-chip digital signal-processor (DSP) architectures is discussed. It is argued that multiple arithmetic units and functionally enhanced arithmetic units are promising directions for further evolution of the datapath architecture. Candidate structures are defined, and the operation of popular DSP benchmarks on these structures is demonstrated     

Embedding DSP

Tools for designing systems around digital signal processor (DSP) chips are discussed. These tools accelerate the design and development of systems with embedded DSPs and can also reduce development costs by letting the engineer focus on a specific application rather than the myriad details of the programming task itself. While a developmental program is running, designers can use higher-level tools-debuggers, simulators, and emulators-to help provide insight into the program's execution and flaws. Some recent upgrades are noted, and tools for block-diagram algorithm development are examined. A table of representative packages is given     

Recent advances in DSP systems

Some of the advances that have contributed to the realization of communication systems with programmable digital signal processors (DSPs) are described. DSP architectures are examined, covering the performance improvements resulting from advances in circuitry as well as in architecture. Architectural advances discussed are parallel processing, function generation, integrating analog circuits, and sigma-delta analog-to-digital conversion. DSP applications to high-speed modems, trellis-coded modulation, and echo cancellation are examined. The DSP implementation of a V.32 modem is described     

DSP在软件无线电接收机中的应用

数字信号处理器（DSP）是鉴于数字滤波和快速傅立叶变换的数字信号处理技术。本文指出在软件无线电（Software Radio)接收机中，DSP技术是其核心技术之一。在接收机中，模拟信号进行数字化后的处理任务全由DSP软件承担，主要完成各种数据流相对较低的基带信号的处理。以TI公司TMS320C5410为例，介绍了其主要结构和特征，并给出了以此为核心的软件无线电接收机的系统框图。     

DSP:捎来春天的信号

刚跨入新千年的门槛,全球数字 信号处理器ＤＳＰ（Ｄｉｇｉｔａｌ ＳｉｇｎａｌＰｒｏｃｅｓｓｏｒ）市场春潮涌动,ＤＳＰ给业界捎来了春天的信号,预兆着今年将是全球ＤＳＰ产业的又一个丰收年。 据市场调查研究公司ＦｏｒｗａｒｄＣｏｎｃｅｐｔｓ最新发布的预测报告显示,在最近５年内,全球ＤＳＰ市场规模的增长速度将超过３０％,到 ２００２年,ＤＳＰ市场总销售额将达１３０亿美元,２００７年更将高达５００亿美元。 ２１世纪初,ＤＳＰ产品将向着高性能、低功耗、加强融合和拓展多种应用的方向发展,从而使越来越多的ＤＳＰ渗透…     

Trends in lithography

Current capabilities and advances in optical electron-beam, X-ray, and ion-beam lithography are discussed. Attention is restricted to the creation of the resist pattern. Equipment, resists, and processing are examined     

Trans-European experiments in DSP education

The Commission of European Communities (CEC) has put in place an interlocking set of initiatives aimed at enhancing the skillsbase European industry will require in order to sustain a competitive posture. One of these programs, COMETT II, is aimed at continuing education for small and medium enterprises. Another program, TEMPUS, aims to increase links between western and eastern Europe, and strongly focuses on academic interchanges and updating undergraduates/postgraduate curricula. DSP-forum, a COMETT II partnership between several European industrial firms and educational establishments, which primarily concentrates on short industrial training courses at a multiplicity of sites is discussed. Eleven partners in seven countries are currently involved with DSP-forum. Four additional partners presently complete the network of cooperating groups under TEMPUS sponsorship (primarily for development and validation of courseware and labware suitable for supporting remote interactive learning of DSP topics)     

雷达信号处理中通用DSP的设计

结合在雷达信号处理系统中通用DSP的开发与设计经验，对通用DSP的硬件和软件设计作了分析与探讨。     

Can the military use commercial wireless signal processing technologies to reduce size, weight and power in radio devices? [Trends in DSP]

This paper discusses if military can adopt commercial air interface standards and leverage the technology developed for the consumer wireless market to manage size, weight, and power in defense communications. The differences in operating requirements that drive the architectures of commercial and defense wireless systems are presented: frequency band of operation, security constraints, and operation in a tactical environment