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  • 基于单DSP的VoIP模拟电话适配器研究与实现

    基于单DSP的VoIP模拟电话适配器研究与实现:提出和实现了一种新颖的基于单个通用数字信号处理器(DSP)的VoIP模拟电话适配器方案。DSP的I/O和存储资源非常有限,通常适于运算密集型应用,不适宜控制密集型应用[5]。该系统高效利用单DSP的I/O和片内外存储器资源,采用μC/OS-II嵌入式实时操作系统,支持SIP和TCP-UDP/IP协议,通 ...

    /dl/31148.html

    标签: VoIP DSP 模拟电话 适配器

    上传时间: 2013-11-20

    上传用户:Wwill

  • 为您的FPGA选择合适的电源

    Abstract: There are many things to consider when designing a power supply for a field-programmablegate array (FPGA). These include (but are not limited to) the high number of voltage rails, and thediffering requirements for both sequencing/tracking and the voltage ripple limits. This application n ...

    /dl/32306.html

    标签: FPGA 电源

    上传时间: 2013-11-10

    上传用户:iswlkje

  • Virtex-6 FPGA PCB设计手册

    Xilinx is disclosing this user guide, manual, release note, and/or specification (the "Documentation") to you solely for use in the developmentof designs to operate with Xilinx hardware devices. You may not reproduce, distribute, republish, download, display, post, or transmit theDocumentation in ...

    /dl/32592.html

    标签: Virtex FPGA PCB 设计手册

    上传时间: 2014-01-13

    上传用户:竺羽翎2222

  • CPLD库指南

    Xilinx is disclosing this user guide, manual, release note, and/or specification (the “Documentation”) to you solely for use in the development of designs to operate with Xilinx hardware devices. You may not reproduce, distribute, republish, download, display, post, or transmit the D ...

    /dl/32639.html

    标签: CPLD

    上传时间: 2013-10-22

    上传用户:李哈哈哈

  • 基于码本映射的语音带宽扩展算法研究

    在现代通信系统中,电话语音的频带被限制在300 Hz~4 kHz的范围内,带来了语音可懂度和自然度的降低。为了在不增加额外成本的前提下提高语音的可懂度和自然度,进行了电话语音频带扩展的研究。提出了一种改进的基于码本映射的语音带宽扩展算法:在码本映射的过程中,使用加权系数来得到映射码本。客观测试结果表明,用此算 ...

    /dl/33807.html

    标签: 映射 带宽 扩展 语音

    上传时间: 2014-12-29

    上传用户:15501536189

  • Virtex-6 FPGA PCB设计手册

    Xilinx is disclosing this user guide, manual, release note, and/or specification (the "Documentation") to you solely for use in the developmentof designs to operate with Xilinx hardware devices. You may not reproduce, distribute, republish, download, display, post, or transmit theDocumentation in ...

    /dl/40076.html

    标签: Virtex FPGA PCB 设计手册

    上传时间: 2013-11-11

    上传用户:zwei41

  • CPLD库指南

    Xilinx is disclosing this user guide, manual, release note, and/or specification (the “Documentation”) to you solely for use in the development of designs to operate with Xilinx hardware devices. You may not reproduce, distribute, republish, download, display, post, or transmit the D ...

    /dl/40193.html

    标签: CPLD

    上传时间: 2014-12-05

    上传用户:qazxsw

  • 关于FPGA流水线设计的论文 This work investigates the use of very deep pipelines for implementing circuits in

    关于FPGA流水线设计的论文 This work investigates the use of very deep pipelines for implementing circuits in FPGAs, where each pipeline stage is limited to a single FPGA logic element (LE). The architecture and VHDL design of a parameterized integer array multiplier is presented and also an IEEE 754 ...

    /dl/179429.html

    标签: investigates implementing pipelines circuits

    上传时间: 2015-07-26

    上传用户:CHINA526

  • Design Specification Introduction Goals and Objectives GameForge is a graphical tool used

    Design Specification Introduction Goals and Objectives GameForge is a graphical tool used to aid in the design and creation of video games. It attempts to bring game development down to a level that any computer savvy user can understand, without requiring masterful programming ability. A user w ...

    /dl/181294.html

    标签: Specification Introduction Objectives GameForge

    上传时间: 2013-12-27

    上传用户:wl9454

  • 最优化算法

    最优化算法,应用有限内存拟牛顿方法(Limited Memory (variable-storage)quasi-Newton method)求解高维最优化问题,使用更多的内存将使算法更有效。

    /dl/181541.html

    标签: 优化算法

    上传时间: 2015-08-08

    上传用户:cuiyashuo