【摘要】 电力线通信在信息家电、楼宇智能化及宽带接入等应用中受到极大的关注。电力线通信存在随机高斯噪声干扰、多径效应和信道衰减,严重制约了高速数据的传输。正交频分复用和直接序列扩频技术是解决该问题的有效手段。直接序列扩频技术具有较好的抗干扰性能。通过Systemview仿真软件对其进行了仿真验证。更多还原

【Abstract】 Power line communication has attracted much attention in the information appliances, building intelligent broadband access and other applications. There are stochastic Gaussian noise, multi-path effect and attenuation in the power line communication. It is difficult to transmit high-speed streams. The orthogonal frequency division and the direct sequence spread spectrum technology are effective methods. Systemview has been used to do some fsimulation. The experimental results show its high resistance to interference.更多还原