| 一种正弦信号发生器的设计 |
| |
| 引用本文： | 刘利子,黄玲,谭潇雄,方阁. 一种正弦信号发生器的设计[J]. 国外电子元器件, 2009, 17(7): 35-36 |
| |
| 作者姓名： | 刘利子 黄玲 谭潇雄 方阁 |
| |
| 作者单位： | 武汉大学电子信息学院; |
| |
| 摘 要： | 设计一个以单片机和FPGA为核心，基于DDSAD9851的正弦信号发生器，能在100Hz-15MHz频率范围可调。通过AGC、幅度控制、调制电路、功率放大等模块实现AM、FM、ASK、FSK、PSK多种调制功能。同时FPGA实现直接频率合成技术，产生基波信号，控制AD9851产生载波信号。用户通过按键选择系统输出调制方式，操作简单。
|
| 关 键 词： | AD9851 89C51 可编程逻辑阵列 正弦信号发生器 |
Design of a sine signal generator |
| |
| LIU Li-zi,HUANG Ling,TAN Xiao-xiong,FANG Ge. Design of a sine signal generator[J]. International Electronic Elements, 2009, 17(7): 35-36 |
| |
| Authors: | LIU Li-zi HUANG Ling TAN Xiao-xiong FANG Ge |
| |
| Affiliation: | School of Electronic Information;Wuhan University;Wuhan 430072;China |
| |
| Abstract: | A sine signal generator based on the DDS chip AD9851 is designed,which uses SCM and FPGA as a core.It is modulated in the frequency range from 100Hz to 15 MHz.The system realizes the AM,FM,ASK,FSK,PSK modulations and other functions using AGC,scape-controlled amplifier,modulation and power amplification unit.Meanwhile,the fundamental wave signals are gained by direct frequency synthesis technology through Verilog programmed on FPGA.And carrier wave signals are gained by controlling of AD9851.By tapping cert... |
| |
| Keywords: | AD9851 89C51 FPGA sine signal generator |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
