摘要
频移键控(Frequency Shift Keying,FSK)是信息传输中使用得较早的一种调制方式,其主要优点是实现起来较容易,抗噪声与抗衰减的性能较好,在中低速数据传输中得到了广泛的应用。阐述了FSK的基本原理,基于TI公司的TMS320VC5402 DSP(数字信号处理器)硬件平台,分析了FSK调制系统的编程思路并用C语言实现其算法,通过仿真验证了该FSK调制系统的准确性和可行性。
FSK is a prior modulation scheme in the information transmission,and has many advantages such as its convenience to realize,anti-noise and anti-attenuation,so it is widely used in medium-and low-speed data transmission.Firstly,its structure is discussed in this paper,and FSK based on TMS320VC5402 DSP is designed.Then the algorithm of FSK is analyzed and realized with C Language.Finally,its accuracy and feasibility are verified.
出处
《无线电工程》
2011年第11期56-57,共2页
Radio Engineering
关键词
FSK
数字信号处理
DSP
算法
frequency shift keying
digital signal processing
DSP
algorithm
