Description: 基于fpga的正弦波发生器设计，有一定的参考价值，写的比较详细-The sine wave generator based on FPGA design, have a certain reference value, a more detailed written Platform: |
Size: 632832 |
Author:qlg |
Hits:
Description: 本设计基于数字频率合成技术,采用正弦查找表实现波形产生.直接数字频率合成技术（DDS）是一种先进的电路结构，能在全数字下对输出信号频率进行精确而快速的控制，DDS技术还在解决输出信号频率增量选择方面具有很好的应用，DDS所产生的信号具有频率分辨率高、频率切换速度快、频率切换时相位连续、输出相位噪声低和可以产生任意波形等诸多优点。
文中介绍了DDS的基本原理，对DDS的质谱及其散杂抑制进行了分析。程序设计采用超高速硬件描述语言VHDL描述DDS,在此基础上设计了正弦波、三角波、方波等信号发生器，。完成了软件和硬件的设计，以及实验样机的部分调试。
-The design is based on a digital frequency synthesis technology, to achieve wave synthesis by sine wave look-up tables. Direct Digital Synthesis Technology (DDS) is an advanced circuit structure, the output signal frequency is controlled precisely and rapidly in all-digital process, DDS technology has been applied in output signal frequency increment. DDS signals generated own high frequency resolution, frequency switching speed and continuous phase when frequency switching, low-output phase noise and can generate arbitrary waveform, and so on.
Basic principles of the DDS is introduced in the paper, frequency form and stray inhabitation of the DDS is analyzed. Procedures designed with high-speed hardware description language VHDL describe DDS, and design a sine wave, triangle wave, square-wave signal generator by it.The hardware and software has been designed, prototype and circuit has been tested partly.
Platform: |
Size: 312320 |
Author:蓝 |
Hits:
Description: 本系统应用VHDL语言及MAX+PLUS II仿真软件利用自顶向下的设计思想进行设计，结合示波器加以完成一个可应用于数字系统开发或实验时做输入脉冲信号或基准脉冲信号用的信号发生器，它具结构紧凑，性能稳定，设计结构灵活，方便进行多功能组合的特点，经济实用，成本低廉。具有产生四种基本波形脉冲信号（方波、三角波、锯齿波和正弦波），且脉冲信号输出幅度及输出频率可调，对于方波信号，还可以实现占空比可调。通过软件仿真和硬件测试都得到了预期的结果。-The system using VHDL language and MAX+ PLUS II simulation software using a top-down design ideas to design a combined oscilloscope be completed to do the input pulse signal or reference pulse signal with the signal generator used in digital system development or experimentalwith compact structure, stable performance, flexible structure design, convenient multifunction portfolio characteristics, economical and practical, low cost. Has four basic waveform pulse signal (square wave, triangle wave, sawtooth and sine wave), and the amplitude of the pulse signal output and the output frequency is adjustable, adjustable duty cycle square wave signal can also be achieved. Expected results through software simulation and hardware testing. Platform: |
Size: 1485824 |
Author:xinxing |
Hits:
Description: 本设计基于数字频率合成技术,采用正弦查找表实现波形产生.直接数字频率合成技术（DDS）是一种先进的电路结构，能在全数字下对输出信号频率进行精确而快速的控制，DDS技术还在解决输出信号频率增量选择方面具有很好的应用，DDS所产生的信号具有频率分辨率高、频率切换速度快、频率切换时相位连续、输出相位噪声低和可以产生任意波形等诸多优点。 文中介绍了DDS的基本原理，对DDS的质谱及其散杂抑制进行了分析。程序设计采用超高速硬件描述语言VHDL描述DDS,在此基础上设计了正弦波、三角波、方波等信号发生器，。完成了软件和硬件的设计，以及实验样机的部分调试。-The design is based digital frequency synthesizer technology, using a sine lookup table to achieve waveform generation. Direct digital frequency synthesis (DDS) is an advanced circuit structure can fully digital output signal frequency under precise and fast control, DDS technology also solve the incremental output signal frequency selection signal having a very good application, DDS generated by high frequency resolution, frequency switching speed, phase-continuous frequency switching time, low phase noise output and can generate arbitrary waveforms, and many other advantages . This paper introduces the basic principles of the DDS, DDS MS for its bulk inhibition were analyzed. Programming using ultra high-speed hardware description language VHDL description DDS, on the basis of the design of the sine wave, triangle wave, square wave signal generator. Completed part of debugging software and hardware design, and the experimental prototype. Platform: |
Size: 4485120 |
Author:冯阳 |
Hits:
Search - sine generator software vhdl