摘要
FSK(Frequency Shift Keying)——移频键控,或称数字频率调制,是数字通信中使用较早的一种调制方式.数字频率调制的基本原理是利用载波的频率变化来传递数字信息.在数字通信系统中,这种频率变化不是连续而是离散的.详细介绍了基于FPGA的2FSK调制解调系统的原理、设计、实现和调试,通过QuartusⅡ软件,在FPGA实验板上设计了一种全数字2FSK调制解调系统,并调试出结果.根据调试结果做出的优化设计,能够简化传统调制器的设计,缩短系统设计周期.
FSK--Frequency Shift Keying, or digital frequency modulation,is an earlier modulation mode used in digital communication. The basic principle of digital frequency modulation is using the changes of carrier frequency to transmit digital information. In digital communication systems, the changes of frequency are not continuous but discrete. The paper introduces the principle, design, implementation, and debug process of the 2FSK modulation-demodulation system based on FPGA in details. Under the software of Quartu： Ⅱ, a kind of digital 2FSK modulation- demodulation system is designed on the FPGA experiemental board and the debugged results are achieved. The debugged results can be used to optimize the system design, simplify the design of traditional modulator-demodulator, and shorten the period of system design.
出处
《浙江工业大学学报》
CAS
北大核心
2010年第3期282-285,共4页
Journal of Zhejiang University of Technology
