QUALITY ASSESSMENT OF SPEECH TRANSMISSION ON A GLOBAL SATELLITE NETWORK WITH THE PLACEMENT OF SPACECRAFT COMMUNICATION AT LOW AND MEDIUM ORBITS FOR OBJECTIVE MODEL PACKET LEVEL

Abstract

The quality of a tested paths of the packet network connection is assessed by subjective and objective methods. Methodology for the subjective (expert) estimation described in Recommendation ITU R. 800 and known as the MOS method (Mean Opinion Score). In accordance with Recommendation ITU G. 107 the basis of an objective methodology based on E-model.