Stochastic Modeling of Phase Noise for Deep Space Communication Systems(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics))

概要

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A deep space communication testbed for Ka-band and X-band has developed at Japan Aerospace Exploration Agency (JAXA). High-quality communication technologies are required to combat severe conditions including a deep space radio channel, a low SNR, a power limitation, and a long time synchronization. For this requirements, a phase noise significantly affect a specific quality-of-service. We therefore measured the phase noise using the testbed to understand the behavior in terms of a temperature variation, and then found two types of phase difference, a slow variation during the constant temperature and a fast variation during the temperature variation more than one degree. The two types of phase noise are modeled using a stochastic method. The characteristics of jitter and BER performance affected by the phase noise were obtained by several QPSK system simulations.
社団法人電子情報通信学会の論文
2009-10-26