Multi-channel equalisation and interference cancellation for HF STANAG 4285 transmissions
Multi-channel equalisation and interference cancellation for HF STANAG 4285 transmissions
- Author(s): E.S. Warner and I.K. Proudler
- DOI: 10.1049/cp:20030468
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- Author(s): E.S. Warner and I.K. Proudler Source: Ninth International Conference on HF Radio Systems and Techniques, 2003 p. 265 – 270
- Conference: Ninth International Conference on HF Radio Systems and Techniques
- DOI: 10.1049/cp:20030468
- ISBN: 0 85296 755 1
- Location: Bath, UK
- Conference date: 23-26 June 2003
- Format: PDF
Adaptive multi-channel equalisation is investigated for HF STANAG 4285 transmissions by processing data collected during March-April 2000. The demodulation performance of a conventional multi-channel receiver is compared to that of a bespoke multiple steered-beam method, in interference scenarios in which a single-channel receiver could not acquire, or had difficulty in acquiring, a signal. It is shown that the multiple beam architecture can adapt using a short training sequence whilst maintaining excellent demodulation performance. Multi-channel processing for HF STANAG 4285 is shown to provide a reduction in probability of bit error of two orders of magnitude or more over a COTS modem.
Inspec keywords: radiofrequency interference; adaptive equalisers; modems; interference suppression; radio receivers; military communication; demodulation
Subjects: Military communications; Radio links and equipment; Modems; Communication channel equalisation and identification; Electromagnetic compatibility and interference
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