Noise statistics in a fast digital radio receiver: The Bedlam backend for the Parkes radio telescope
The digital record of the voltage in a radio telescope receiver, after frequency conversion and sampling at a finite rate, is not a perfect representation of the original analog signal. To detect and characterise a transient event with a duration comparable to the inverse bandwidth it is necessary t...
| Main Authors: | , , |
|---|---|
| Format: | Journal Article |
| Published: |
2013
|
| Online Access: | http://hdl.handle.net/20.500.11937/7091 |
| _version_ | 1848745266166890496 |
|---|---|
| author | Bray, J. Ekers, Ronald Roberts, P. |
| author_facet | Bray, J. Ekers, Ronald Roberts, P. |
| author_sort | Bray, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The digital record of the voltage in a radio telescope receiver, after frequency conversion and sampling at a finite rate, is not a perfect representation of the original analog signal. To detect and characterise a transient event with a duration comparable to the inverse bandwidth it is necessary to compensate for these effects, altering the statistical properties of the signal and making it difficult to determine the significance of a potential detection. We present an analysis of these modified statistics and demonstrate them with experimental results from Bedlam, a new digital backend for the Parkes radio telescope. © 2013 Springer Science+Business Media Dordrecht. |
| first_indexed | 2025-11-14T06:14:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-7091 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:14:37Z |
| publishDate | 2013 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-70912018-03-29T09:05:43Z Noise statistics in a fast digital radio receiver: The Bedlam backend for the Parkes radio telescope Bray, J. Ekers, Ronald Roberts, P. The digital record of the voltage in a radio telescope receiver, after frequency conversion and sampling at a finite rate, is not a perfect representation of the original analog signal. To detect and characterise a transient event with a duration comparable to the inverse bandwidth it is necessary to compensate for these effects, altering the statistical properties of the signal and making it difficult to determine the significance of a potential detection. We present an analysis of these modified statistics and demonstrate them with experimental results from Bedlam, a new digital backend for the Parkes radio telescope. © 2013 Springer Science+Business Media Dordrecht. 2013 Journal Article http://hdl.handle.net/20.500.11937/7091 10.1007/s10686-012-9327-9 restricted |
| spellingShingle | Bray, J. Ekers, Ronald Roberts, P. Noise statistics in a fast digital radio receiver: The Bedlam backend for the Parkes radio telescope |
| title | Noise statistics in a fast digital radio receiver: The Bedlam backend for the Parkes radio telescope |
| title_full | Noise statistics in a fast digital radio receiver: The Bedlam backend for the Parkes radio telescope |
| title_fullStr | Noise statistics in a fast digital radio receiver: The Bedlam backend for the Parkes radio telescope |
| title_full_unstemmed | Noise statistics in a fast digital radio receiver: The Bedlam backend for the Parkes radio telescope |
| title_short | Noise statistics in a fast digital radio receiver: The Bedlam backend for the Parkes radio telescope |
| title_sort | noise statistics in a fast digital radio receiver: the bedlam backend for the parkes radio telescope |
| url | http://hdl.handle.net/20.500.11937/7091 |