Adaptive Algorithm for Chirp-Rate Estimation
Chirp-rate, as a second derivative of signal phase, is an important feature of nonstationary signals in numerous applications such as radar, sonar, and communications. In this paper, an adaptive algorithm for the chirp-rate estimation is proposed. It is based on the confidence intervals rule and the...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2009-01-01
|
| Series: | EURASIP Journal on Advances in Signal Processing |
| Online Access: | http://dx.doi.org/10.1155/2009/727034 |
| _version_ | 1811264803804545024 |
|---|---|
| author | Igor Djurović Cornel Ioana Ljubiša Stanković Pu Wang |
| author_facet | Igor Djurović Cornel Ioana Ljubiša Stanković Pu Wang |
| author_sort | Igor Djurović |
| collection | DOAJ |
| description | Chirp-rate, as a second derivative of signal phase, is an important feature of nonstationary signals in numerous applications such as radar, sonar, and communications. In this paper, an adaptive algorithm for the chirp-rate estimation is proposed. It is based on the confidence intervals rule and the cubic-phase function. The window width is adaptively selected to achieve good tradeoff between bias and variance of the chirp-rate estimate. The proposed algorithm is verified by simulations and the results show that it outperforms the standard algorithm with fixed window width. |
| first_indexed | 2024-04-12T20:10:59Z |
| format | Article |
| id | doaj.art-07399be0cb9c439d95025b41b08b9550 |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-04-12T20:10:59Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-07399be0cb9c439d95025b41b08b95502022-12-22T03:18:15ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802009-01-01200910.1155/2009/727034Adaptive Algorithm for Chirp-Rate EstimationIgor DjurovićCornel IoanaLjubiša StankovićPu WangChirp-rate, as a second derivative of signal phase, is an important feature of nonstationary signals in numerous applications such as radar, sonar, and communications. In this paper, an adaptive algorithm for the chirp-rate estimation is proposed. It is based on the confidence intervals rule and the cubic-phase function. The window width is adaptively selected to achieve good tradeoff between bias and variance of the chirp-rate estimate. The proposed algorithm is verified by simulations and the results show that it outperforms the standard algorithm with fixed window width.http://dx.doi.org/10.1155/2009/727034 |
| spellingShingle | Igor Djurović Cornel Ioana Ljubiša Stanković Pu Wang Adaptive Algorithm for Chirp-Rate Estimation EURASIP Journal on Advances in Signal Processing |
| title | Adaptive Algorithm for Chirp-Rate Estimation |
| title_full | Adaptive Algorithm for Chirp-Rate Estimation |
| title_fullStr | Adaptive Algorithm for Chirp-Rate Estimation |
| title_full_unstemmed | Adaptive Algorithm for Chirp-Rate Estimation |
| title_short | Adaptive Algorithm for Chirp-Rate Estimation |
| title_sort | adaptive algorithm for chirp rate estimation |
| url | http://dx.doi.org/10.1155/2009/727034 |
| work_keys_str_mv | AT igordjuroviamp263 adaptivealgorithmforchirprateestimation AT cornelioana adaptivealgorithmforchirprateestimation AT ljubiamp353astankoviamp263 adaptivealgorithmforchirprateestimation AT puwang adaptivealgorithmforchirprateestimation |