摘要
提出了一种基于自适应滤波算法的解调频移键控（ＦＳＫ）信号的方法—自适应解调方法队（ＡＤＥＭ）．文中以常用的最小均方误差自适应算法（ＬＭＳ）为例，讨论ＡＤＢＭ对低速数据ＦＳＫ信号的解调过程及其性能．实验结果表明，ＡＤＥＭ具有抗干扰性强、输出响应快、便于用数字信号处理（ＤＳＰ）技术实现等特点，并且易于推广应用．
This paper presents a new method for demodulating the frequency shift Keying (FSK) aignals, the adaptive demodulation (ADEM) method. The commonly used least mean square (LMS) error adaptive filtering algorithm is employed for studying the demodulating procedure and the performance of the ADEM scheme. It is indicated by aimulation experiments that the ADEM has many advantages over conventional ones, such as the powerful anti-noise ability,the small transfer delay, and the convenient implementation with DSP technology. The idea and Principle of the ADEM can also be applied to other modulation modes.
出处
《应用科学学报》
CAS
CSCD
1996年第2期167-172,共6页
Journal of Applied Sciences
关键词
数字通信
自适应信号处理
调制解调
计算机模拟
digital communications,adaptive signal proceeding, modulation and demodulation, computer aimulation
