机构地区: 广东工业大学计算机学院智能工程研究所
出 处: 《计算机工程与设计》 2005年第3期716-718,721,共4页
摘 要: 低压电力线通信具有恶劣的信道特性,使得信息传输的可靠性差。扩频和OFDM 是迅速发展的数字通信调制技术,都具有一定的抗干扰和抗多径效应能力,是解决问题行之有效的方法。介绍了这两种调制技术,并且提出了两者相结合的方案。 Communication in low_power line has a worse channel attribution which makes an unpleasant result of information communi- cation. Technology of spread spectrum and OFDM develop very quickly and both have considerable ability for resolving such problem as noise, multi-path propagation frequency selective fading so it is an efficient way to solve the problem. There are some introduction of these two modulation technology. At last, a design has been suggested.