无线光通信中PPM的RS级联编码调制研究

Research of PPM-based Reed-solomon concatenate codes modulation in optical wireless communications

在脉冲位置调制(PPM)直接检测光通信系统中插入RS级联编码构成一种新的PPM光通信系统(RS-PPM),该方式对PPM直接检测光通信系统进行了改进,并用Mat l ab对编码系统和未编码系统的误比特率进行了仿真比较,仿真结果表明,基于RS级联编码的PPM系统具有较好纠错和抗干扰能力。

In the direct detection optical PPM communication systems into the RS coding constitute a new cascade PPM optical communication system（RS-PPM）,the direct detection method for PPM optical communication system has been improved,and with Matlab coding system and the uncoded system bit error rate of the simulation compared to simulation,the results show that based on the RS coded PPM system cascade has good error correction and anti-jamming capability.