Application of digital pulse position modulation

This paper introduces the basic knowledge about PPM and four PPM related applications, namely, PPM modulation and demodulation based blue-green laser communication system, PPM modulation based underwater optical communication system design and simulation, PPM based optical communication positioning accuracy enhancement, and atmospheric laser communication PPM modulation and demodulation system design and simulation. In all four applications, PPM plays a vital role and the applications reflect the various uses of PPM in different areas of communication. This article will provide further insight into the applications and knowledge of PPM.