| 摘要: |
| 利用DSP平台可移植性好的特点，设计了一种基于DSP与2FSK的无线数据传输平台，
给出了系统的设计思路、平台硬件结构及主要算法程序流程。系统使用PLL和混频器实现了
调制载波信号与550 MHz UHF信号之间的变换,并根据查表法和非相干解调原理，实现了
基带信号的2FSK调制解调算法。当DSP工作在160 MHz频率时，解调一个二进制码元的时
间为3 μs，满足系统设计要求。实际测试表明该系统可稳定运行。 |
| 关键词: 无线数据传输 数字信号处理器 基带信号 2FSK调制解调 |
| DOI： |
|
| 基金项目: |
|
| Design and Implementation of Wireless Data Transmission Platform Based on DSP |
| XU Ling-fei,LIN Hao-dong |
| (The Engineering and Technical College，Chengdu University of Technology，Lesh
an 614007，China) |
| Abstract: |
| By making use of the merit of portability of DSP platform, a wireless data t
ransmission platform based on DSP is designed. The design idea, hardware structu
re of system platform and main program flow of algorithm are described. This sys
t
em achieves conversion between modulated carrier signal and 550 MHz UHF sign
al us
ing PLL and mixer，and realizes 2FSK modulation and demodulation algorithm of ba
se b
a
nd signal based on the principle of lookuptable and noncoherent demodu
la
tion. When DSP works at 160 MHz, the demodulation time for one
binary element is 3 μs, which meets the requirements of system.Test shows t
hat the system
runs stably. |
| Key words: wireless data transmission DSP base band signal 2FSK modem |
