Performance Comparison of PIN and APD based FSO Satellite Systems for various Pulse Modulation Schemes in Atmospheric Turbulence

• 作者: Pooja Gopal Subrat Kar V. K. Jain
• 来源期刊: 通讯与网络(英文)
• 学科: 工学
• 关键词: Free Space OPTICS PULSE Modulation Ground-to-satellite COMMUNICATIONS
• 年，卷（期）: 2013,（3）
• 页码范围: 200-203
• 页数: 4页
• 分类号: TN92

摘要

In this paper, the performance of various Pulse Position Modulation (PPM) schemes has been analysed for PIN and APD receivers in the presence of atmospheric turbulence. It is observed that the performance of the APD receiver is always better than that of the PIN receiver as expected. Among the various modulation schemes, the performance of Differential Amplitude PPM (DAPPM) scheme with more number of amplitude levels is better than that of the other schemes for the same single level peak amplitude. Further, the optimum gain of APD receiver does not change substantially for different modulation schemes and turbulent conditions.