Abstract
Details the subjective performance of various modulation schemes and speech processing techniques with application to the mobile satellite service. The comparison is based on a mean opinion score (MOS) assessment of voice quality with measurements drawn from a number of recent publications and laboratory measurements. Of particular interest is the performance of an analogue form of linear modulation (ACSSB) when compared with a digitised voice source used in conjunction with an appropriate data modulation system. It is found that for a given bandwidth/power budget, the linear analogue system will always outperform the digital equivalent for the present generation of voice coder technologies. The performance gain is most dramatic in a fading (Ricean) environment
| Translated title of the contribution | Subjective performance of modulation systems for mobile satellite |
|---|---|
| Original language | English |
| Title of host publication | IEE Colloquium on Modems and Codecs for Satellite Communications, London |
| Publisher | Institution of Engineering and Technology (IET) |
| Pages | 6/1 - 6/8 |
| Number of pages | 8 |
| Volume | 1 |
| Publication status | Published - Oct 1989 |
| Event | Colloquium on Modems and Codecs for Satellite Communications - London, United Kingdom Duration: 1 Oct 1989 → … |
Conference
| Conference | Colloquium on Modems and Codecs for Satellite Communications |
|---|---|
| Country/Territory | United Kingdom |
| City | London |
| Period | 1/10/89 → … |
Bibliographical note
Rose publication type: Conference contributionOther identifier: IEE Digest No.114
Keywords
- mobile communication systems
- modulation
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