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[SCM多功能高精度信号发生器的设计

Description: 摘要:直接数字频率合成(DDS)是七十年代初提出的一种新的频率合技术,其数字结构满足了现代电子系统的许多要求,因而得到了迅速地发展。现场可编程门阵列器件(FPGA)的出现,改变了现代电子数字系统的设计方法,提出了一种全新的设计模式。本设计结合这两项技术,并利用单片机控制灵活的特点,开发了一种新的函数波形发生器。在实现过程中,本设计选用了Altera公司的EP1C6Q240C8芯片作为产生波形数据的主芯片,充分利用了该芯片的超大集成性和快速性。在控制芯片上选用了AT89C51单片机作为控制芯片。本设计中,FPGA芯片的设计和与控制芯片的接口设计是一个难点,本文利用Altera的设计工具Quartus II并结合Verilog-HDL语言,采用硬件编程的方法很好地解决了这一问题。本文首先介绍了函数波形发生器的研究背景和DDS的理论。然后详尽地叙述了用EP1C6Q240C8完成DDS模块的设计过程,这是本设计的基础。接着分析了整个设计中应处理的问题,根据设计原理就功能上进行了划分,将整个仪器功能划分为控制模块、外围硬件、FPGA器件三个部分来实现。然后就这三个部分分别详细地进行了阐述。最后,通过系列实验,详细地说明了本设计的功能、性能、实现和实验结果。并结合在设计中的一些心得体会,提出了本设计中的一些不足和改进意见。通过实验说明,本设计达到了预定的要求,并证明了采用软硬件结合,利用DDS技术实现函数波形发生器的方法是可行的。 关键词:直接数字频率合成;现场可编程门阵列;函数波形发生器;频谱分析;仿真 含图原版论文
Platform: | Size: 2195647 | Author: nacker@126.com | Hits:

[VHDL-FPGA-Verilog基于FPGA的数字频率计

Description: 基于FPGA的数字频率计
Platform: | Size: 393079 | Author: wjh033 | Hits:

[OtherVHDL编程的DDS设计

Description: 运用FPGA 利用数字频率合成的原理设计信号发生器
Platform: | Size: 139 | Author: lianzhupig | Hits:

[SourceCodeFPGA信号发生多波形程序

Description: FPGA的DDS的HDL程序,还有生成的波形MIF表
Platform: | Size: 14833714 | Author: jxa2010 | Hits:

[CommunicationDDS_VERILOG

Description: 本例给出了DDS的VERIOG的程序事例,可发生正弦\余弦等波形,适应与通信方面的硬件实现!-the cases presented DDS VERIOG procedures example, can occur sine \ cosine wave such as, Adaptation and communications hardware realization!
Platform: | Size: 3072 | Author: 陈榧 | Hits:

[VHDL-FPGA-Verilogdds_fpga

Description: DDS在现在运用月来越广泛,在相对带宽、频率转换时间、相位连续性、正交输出、高分辨力以及集成化等方面都远远超过了传统频率合成技术所能达到的水平,为系统提供了优于模拟信号源的性能。利用DDS技术可以很方便地实现多种信号。在FPGA上实现的DDS-DDS now to the use of more extensive relative bandwidth, frequency conversion time, phase continuity, quadrature output, high-resolution and integration, and other aspects far more than the traditional frequency synthesizer technology can achieve the level To provide a superior analog signal source performance. DDS technology can be used very easily to a variety of signal. FPGA Implementation of DDS
Platform: | Size: 180224 | Author: 孙洪亮 | Hits:

[Embeded-SCM DevelopSIN_fashengqi

Description: 2006altera大赛-基于软核Nios的宽谱正弦信号发生器设计:摘要:本设计运用了基于 Nios II 嵌入式处理器的 SOPC 技术。系统以 ALTERA公司的 Cyclone 系列 FPGA 为数字平台,将微处理器、总线、数字频率合成器、存储器和 I/O 接口等硬件设备集中在一片 FPGA 上,利用直接数字频率合成技术、数字调制技术实现所要求波形的产生,用 FPGA 中的 ROM 储存 DDS 所需的波形表,充分利用片上资源,提高了系统的精确度、稳定性和抗干扰性能。使用新的数字信号处理(DSP)技术,通过在 Nios 中软件编程解决 不同的调制方式的实现和选择。系统频率实现 1Hz~20MHz 可调,步进达到了1Hz;完成了调幅、调频、二进制 PSK、二进制 ASK、二进制 FSK 调制和扫频输出的功能。 -2006altera race-based soft-core Nios wide spectrum of sinusoidal signal generator design : Abstract : The use of design-based Nios II embedded processor SOPC technology. Altera Corporation system to the Cyclone FPGA series of digital platform, microprocessor, bus, Digital Frequency Synthesizer, memory and I/O interface hardware concentrated in an FPGA, the use of direct digital frequency synthesis technology and digital modulation waveforms required to achieve the rise, Using FPGA ROM storage of the DDS waveform table, and make full use of on-chip resources, improve the system's accuracy, stability and robustness. Use of new digital signal processing (DSP) technology, Nios through software programming to solve different ways of achieving modulation and choice. Realize the system freq
Platform: | Size: 407552 | Author: 刘斐 | Hits:

[Windows CEDDSFPGA_cylone

Description: dds设计,花了一个星期做的,verilog写的,可生成多种波形,频率范围可上M,性能不错。-dds design, spent a week doing, verilog written, multiple waveform generation, frequency range available on the M, good performance.
Platform: | Size: 637952 | Author: 苏纳 | Hits:

[SCMwave_generator

Description: 51单片机控制FPGA,通过DDS方式合成波形的发生器控制程序-51 MCU control FPGA, DDS waveform synthesis of the generator control procedures
Platform: | Size: 26624 | Author: shiyj | Hits:

[VHDL-FPGA-VerilogDDS_generator

Description: DDS锯齿波发生器: 开发平台:maxplus+FPGA 功能: 输出X路扫屏锯齿波。频率可用键盘精确控制,设置多个挡位;可水平移动波形;-DDS sawtooth generator : Development Platform : maxplus+ FPGA functions : So output X Lu Ping Sawtooth. Keyboard can be used precision frequency control, multiple gear; Mobile waveform can level;
Platform: | Size: 852992 | Author: shiyj | Hits:

[VHDL-FPGA-VerilogFPGA-CPLD_DesignTool(5-6)

Description: FPGA-CPLD_DesignTool(example5-6),需要的朋友可以下载-FPGA-CPLD_DesignTool (example5-6), a friend in need can be downloaded
Platform: | Size: 377856 | Author: | Hits:

[Otherwave_generator_1

Description: 在采用FPGA开发DDS时,常需要写波表,十分麻烦...己通过调试。-in FPGA development DDS, often need to write wave table, very troublesome ... had passed through debugging.
Platform: | Size: 18432 | Author: 张三 | Hits:

[SCMmyDDS

Description: 单片机与fpga组成的dds,单片机部分的原码,其中有320*240的液晶屏的控制-SCM and fpga of dds, microcontroller part of the original code. of which 320* 240 LCD screen control
Platform: | Size: 433152 | Author: zhuyan | Hits:

[BooksDDStheuseofFPGAsina

Description: DDS技术应用于FPGA实现正弦波(周期信号)的产生-DDS technology for FPGA sine wave (periodic signals) have
Platform: | Size: 14336 | Author: 1 | Hits:

[SCMDDS

Description: 基于fpga,采用quartus2的DDS信号发生器,采用高速DAC908为数模芯片,并可通过51单片机送入调制信号进行FM调制-Based on the fpga, the use of the DDS signal generator quartus2 using DAC908 number of high-speed chip module, and passed into 51 single-chip FM modulation signal modulation
Platform: | Size: 2745344 | Author: 张新 | Hits:

[VHDL-FPGA-VerilogDDS

Description: 基于FPGA平台,实现了直接数字频率合成。-FPGA-based platform, to achieve a direct digital frequency synthesis.
Platform: | Size: 827392 | Author: liqijun | Hits:

[OtherFPGA_DDS

Description: 基于FPGA的DDS和周期合成技术在EIS中的应用,caj格式-DDS and FPGA-based synthesis technology cycle in the EIS application, caj format
Platform: | Size: 155648 | Author: zhang | Hits:

[VHDL-FPGA-VerilogFPGA-VHDL-DDS

Description: 基于FPGA的DDS波形发生器--程序,如果需要产生输出不同的位数的波形,可以自行修改程序中的rom表中数据位数-FPGA-based waveform generator DDS- procedure, if the number of bits required to generate output of different waveforms in the program can modify data in the table the median rom
Platform: | Size: 1256448 | Author: 许聪 | Hits:

[VHDL-FPGA-VerilogFPGA-VHDL-DDS

Description: 这是基于FPGA的直接数字频率合成器的程序,是VHDL语言-This is based on FPGA for direct digital frequency synthesizer program that is VHDL language
Platform: | Size: 1253376 | Author: 笙箫 | Hits:

[SCM程序-正弦信号发生器(FPGA+STM32版)

Description: 以FPGA为核心,实现正弦波、调制波AM、FM、ASK和PSK等功能,通过SPI协议与STM32通信,实现输出波形的选择、频率的设置和基带信号的设定等。(With FPGA as the core, the functions of sine wave, modulation wave AM.FM. ASK and PSK are realized. The output waveform selection, frequency setting and baseband signal setting are realized by SPI protocol and STM32 communication.)
Platform: | Size: 4453376 | Author: sun.smile | Hits:
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