Semi-physical Simulation and Measurement of Satellite Links Based on the Presence of Noise and Doppler Effects

摘要

Characteristics of noise and Doppler shift in space environment are introduced. In order to measure the communication quality of satellite links under the effects of noise and Doppler shift, a Semi-Physical modeling is presented. By simulation analysis, we can accurately measure the Error Vector Magnitude (EVM) and the Bit Error Rate (BER) related to the input signal with jam. The measured results show that effects of the noise and Doppler shift to the Satellite links' communication quality.