Simulation shows that the power effectiveness and bit error rate of optical pulse system obviously outperform those of digital sub-carrier intensity modulation system under the same conditions.

• 仿真结果表明，在同等条件下，光脉冲调制系统的功率有效性要优于数字副载波调制系统，误比特率也明显低于数字副载波调制系统。