| EPSRC Reference: |
GR/H44127/01 |
| Title: |
DATA TRANSMISSION TECHNIQUES FOR CHANNELS WITH HIGH LEVELS OF NON-GAUSSIAN NOISE |
| Principal Investigator: |
Darnell, Professor M |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Electronic Engineering |
| Organisation: |
University of Hull |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
06 July 1992 |
Ends: |
05 July 1995 |
Value (£): |
64,188
|
| EPSRC Research Topic Classifications: |
| Digital Signal Processing |
|
|
| EPSRC Industrial Sector Classifications: |
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
To investigate:(i) Spectral shaping codes;(ii) Combined embedded coding and modulation;(iii) Template correlation(iv) Overall transmission systems protocols.Progress:This project is being carried out jointly with the University of Lancaster. The element previously at the University of Hull is currently being transferred to the University of Leeds.Initially, work concentrated on the design of spectral shaping codes (SSCs) and the systematic adaptation of their parameters to produce a null, or nulls, at specified values of frequency. Such nulls could then be steered onto narrowband interfering sources. Two methods of code synthesis were investigated and their application, in conjunction with template correlation at the receiver assessed as the basis of a simple, interference-resistant, data transmission system.The latter part of the programme has concentrated on the development of a more sophisticated adaptive data transmission system for high-noise environments. This comprises a novel, variable-parameter, partial-response modem, capable of adapting its spectral occupancy in response to the prevailing interfering signal conditions. At the receiver, a new system for discriminating statistically between wanted signal and unwanted noise/interference is employed. This system is now in the final stages of development within a DSP-based architecture. In their current form, the techniques are compatible with baseband or single-sideband transmission schemes. The final stage of the investigation will be to carry out overall integration of the work at Lancaster and Leeds, within a flexible multi-functional architecture. This will involve coalescing algorithms and developing transmission protocols which can make optimum use of the individual transmission and processing procedures already produced from the programme. If time permits, on-air tests of the final system configuration(s, will be carried out over time-variable communication channels with non-Gaussian noise.
|
|
Key Findings |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Potential use in non-academic contexts |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Impacts |
|
| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
|
| Date Materialised |
|
|
|
|
Sectors submitted by the Researcher |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
| Project URL: |
|
| Further Information: |
|
| Organisation Website: |
http://www.hull.ac.uk |