高速电力线载波信道分析模块的设计与实现

Design and implementation of a HPLC channel analysis module

高速电力线载波信道噪声环境复杂,而现有设备难以对载波信道噪声采集和测量分析。为此,提出了一种高速电力线载波信道分析模块,可实现现场噪声高精度样本采集、信道衰减特性测试等功能,并且可在实验室测试环境中进行噪声回放,实现现场环境的真实模拟。首先介绍了分析模块的硬件架构组成,描述了FPGA逻辑电路的状态机设计及嵌入式软件设计方案,最后对研制的样机进行了测试,结果表明信道分析模块能够满足设计要求的所有功能,解决了高速电力线载波通信芯片对抗噪声技术研究和现场运维测试的难题。

The noise environment of HPLC channel is complex,but the existing equipment is difficult to collect and analyze the channel noise.Therefore,this paper proposes a HPLC channel analysis module,which can realize the functions of high-precision sample collection,channel attenuation characteristic test,etc.,and can play back the noise in the laboratory test environment to realize the real simulation of the field environment.Firstly,the hardware architecture of the analysis module is introduced,the state machine design of FPGA logic circuit and embedded software design are described.Finally,the prototype is tested.The results show that the channel analysis module can meet all the functions of the design requirements,and solve the problems of HPLC communication chip anti noise research and field maintenance test.