【摘 要】
：
无线光通信系统中,设计和研究调制技术是系统的关键技术之一.首先,对OOK、PPM、DPPM、DPIM 和DHPIM 调制方式的符号结构、发射功率以及传输带宽进行了研究和对比分析；其次,在理论分析的基础上,基于MATLABGUI设计实现了调制方式的分析和演示软件.理论分析表明,在时隙数和时隙宽度方面,PPM 的每符号时隙数最大,平均时隙宽度最小,DPPM 和DPIM 的时隙数和时隙宽度近似相等,D
【机 构】
：
兰州理工大学计算机与通信学院,甘肃兰州730050 兰州理工大学电气工程与信息工程学院,甘肃兰州7
【出 处】
：
第四届全国信息光学与光子器件学术会议
论文部分内容阅读
无线光通信系统中,设计和研究调制技术是系统的关键技术之一.首先,对OOK、PPM、DPPM、DPIM 和DHPIM 调制方式的符号结构、发射功率以及传输带宽进行了研究和对比分析；其次,在理论分析的基础上,基于MATLABGUI设计实现了调制方式的分析和演示软件.理论分析表明,在时隙数和时隙宽度方面,PPM 的每符号时隙数最大,平均时隙宽度最小,DPPM 和DPIM 的时隙数和时隙宽度近似相等,DHPIM 时隙数和时隙宽度介于PPM 和DPPM 之间；在平均发射功率方面,OOK 的平均发射功率最大,PPM 的平均发射功率最小,DHPIM 比OOK 小但比DPIM 和DPPM 大,DPIM 发射功率特性略优小于DPPM；在传输带宽方面,OOK 带宽需求最小,PPM 带宽需求最大,DPIM 的带宽特性略大于DPPM,DHPIM 带宽需求大于OOK 但小于DPPM.
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