共查询到20条相似文献,搜索用时 46 毫秒
1.
2.
基于DSP技术的EAS系统设计 总被引:2,自引:2,他引:2
基于数字信号处理芯片设计的EAS系统的工作原理、组成以及实现实时监控应解决的技术难点。提出了运用数字信号处理的算法识别标签的软件实现方法。给出了系统的硬件原理图和软件流程图。 相似文献
3.
提出了一种在嵌入式数字信号处理器系统中实现以太网通讯的解决方案.将TI公司的数字信号处理器TMS320F2812与以太网接口芯片DM9000A相结合,在2812 DSP芯片上移植了μC/OS-II操作系统和LwIP轻型以太网协议栈,并用软件方式实现了TCP/IP网络协议,从而达到嵌入式系统同Internet通信的目的并已得到应用.系统结构简单、性价比高,具有广泛的应用前景. 相似文献
4.
基于C6416 DSP和网络技术的H.264视频点播方案 总被引:2,自引:0,他引:2
TMS320C6416是美国德州仪器公司的高性能定点数字信号处理芯片。论文提出了一种结合TMS320C6416数字信号处理芯片和网络技术的H.264视频点播方案。已实现的系统符合IEEE802.3规范,能够根据用户的点播需求下载原始码流并实现H.264视频的实时解码。 相似文献
5.
提出了利用数字信号处理器TMS320F2812内置ADC进行频率测量的设计方案,并进行了具体设计;该系统充分利用了该型芯片的ADC模块的特点,通过高频的ADC采样模拟出计数器工作,实现了频率和占空比的测量,并且可工作于多通道模式下;结果表明:这种频率测量系统具有成本低、高速、等精度等特点,应用前景广阔。 相似文献
6.
卷积是数字信号处理中最基本、最常用的运算之一。本文介绍了利用TMS320C54x系列芯片为基础的DSPLIB库函数中的相关函数和FFT函数来实现数季卷积处理的两种方法,使卷积运算的实现变得容易,并对DSPLIB库函数的使用进行了详细介绍,给出了具体的程序清单和实验结果。 相似文献
7.
8.
DSP片外高速海量SDRAM存储系统设计 总被引:3,自引:0,他引:3
介绍使用同步动态RAM(SDRAM)扩展嵌入式DSP系统高速超大容量外部存储空间的设计方法;结合已成功实现的、基于TMS320C6201的数字信号处理系统,论述使用IS42S16400 SDRAM芯片设计DSP片外同步存储系统的具体实现方案;详细讨论TMS320C6201的EMI与SDRAM的接口设计及编程方法。 相似文献
9.
10.
基于DSP的静电悬浮转子微陀螺测控系统 总被引:1,自引:1,他引:0
开发了一种基于数字信号处理器(DSP)的静电悬浮转子微陀螺的可视化闭环测控系统.该系统是在VC33DSP平台下,采用增量式PID算法控制器,对VC33DSP开发系统的外设A/D、D/A和PCI芯片进行编程应用.具体为使用VC++编写可视化界面,对PCI芯片编程实现DSP与PC之间通信,使用VC33DSP汇编语言编程实现数据的输入输出.经编程测试,增量式汇编函数能够有效运行,为静电悬浮转子微陀螺的悬浮、旋转等检测控制实现奠定了一定的基础. 相似文献
11.
12.
13.
用DSP的主机接口HPI实现DSP与PC机间通信 总被引:3,自引:0,他引:3
当需要用DSP与PC机构成双机系统时,最关键的问题是要能够实现双机间的通信.DSP与PC机间有多种实现通信的方法.对于较高档次的DSP,片内都提供了一个增强的主机接口(HPI),这为实现DSP与其它微处理器间实现并行通信提供了便利条件.本文以TMS320VC5402 DSP为例,说明了利用其HPI实现与PC机并行通信的方法. 相似文献
14.
This highly parallel DSP architecture based on a short-vector memory system incorporates techniques found in general-purpose computing. It promises sustained performance close to its peak computational rates of 900 MFLOPS (32-bit floating-point) or 3.6 BOPS (16-bit fixed-point) 相似文献
15.
16.
多制式调制器是基于软件无线电思想的发射机的重要组成部分.以数字信号处理器DSP和数字上变频器DUC为核心的多制式调制器,依据数字信号的正交变换理论,将多种调制方式在DSP上用软件完成,硬件结构简单,有很强的灵活性和开放性. 相似文献
17.
Tomasz TarasiukAuthor Vitae Mariusz Szweda Author Vitae 《Computer Standards & Interfaces》2011,33(2):182-190
This paper presents problems related to transient detection and monitoring in electric power systems. It consists of two parts. Firstly, a problem of frequency characteristic of real impulses is considered. Parameters of the selected transient and notching disturbances are determined after extracting disturbances by pass-band filters with various cut-off frequencies. Further, results of wavelet transform application for estimation of selected disturbances are presented. Secondly, basic features of the prototype of original multi-parameter instrumentation for power quality assessment are shown and its transient monitoring capabilities are described on the basis of laboratory research of the testing signals. This new measurement instrument utilizes the digital signal processor (DSP) technique. 相似文献
18.
介绍了基于TMS320LF2407控制的三相电压型PWM整流器数字系统,采用电压空间矢量脉宽调制(SVPWM)控制策略,实现了网侧输入电流的正弦化和单位功率因数运行。最后给出了实验波形。 相似文献
19.
The characteristics of benchmark digital signal processing (DSP) algorithms are examined. These characteristics are used to suggest the features of an ideal DSP architecture, which is compared to current DSP and reduced instruction set computer (RISC) architectures. Timing comparisons taken from data books and research show that several on-the-market RISCs have a DSP performance close to or better than some DSP chips. Analysis of these DSP and RISC architectures leads to the suggestion of an ideal low-cost RISC DSP chip 相似文献
20.
These days, the once obscure engineering term “DSP” (digital signal processing) is working its way into common use. It has begun to crop up on the labels of an ever wider range of products, from home audio components to answering machines. This is not merely a reflection of a new marketing strategy, however; there truly is more digital signal processing inside today's products than ever before. But why is the market for DSP processors booming? The answer is somewhat circular: as microprocessor fabrication processes have become more sophisticated, the cost of a microprocessor capable of performing DSP tasks has dropped significantly to the point where such a processor can be used in consumer products and other cost sensitive systems. As a result, more and more products have begun using DSP processors, fueling demand for faster, smaller, cheaper, more energy-efficient chips. Although fundamentally related, DSP processors are significantly different from general purpose processors (GPPs) like the Intel Pentium or PowerPC. The authors explain what DSP processors are and what they do. They also offer a guide to evaluating DSP processors for use in a product or application 相似文献