Time synchronisation of an HF radio modem
Abstract
The present investigation is concerned with a technique for time synchronization which is of potential value in any application of time synchronization where an estimate of the sampled impulse response of a time-varying linear baseband channel is required but the particular phase of the sampling instants is hot important. The technique appears to be both simple and effective and to be capable of development into a useful practical system. Attention is given to the results of computer simulation tests which show the performance of the technique in a 9600 bit/s quadrature-amplitude-modulated (QAM) data-transmission system operating over a model of an HF radio link. The data-transmission system is considered along with the control of the sampling instants, and details concerning the computer simulation tests.
- Publication:
-
IEE Proceedings F: Communications Radar and Signal Processing
- Pub Date:
- December 1982
- Bibcode:
- 1982IPCRS.129..403C
- Keywords:
-
- Channels (Data Transmission);
- Digital Data;
- Modems;
- Radio Transmission;
- Signal Reception;
- Synchronism;
- Computerized Simulation;
- Data Sampling;
- High Frequencies;
- Maximum Likelihood Estimates;
- Voice Communication;
- Communications and Radar