Adaptive notch filtering for tracking multiple complex sinusoid signals
This thesis is related to the field of digital signal processing; where the aim of this research is to develop features of an infinite impulse response adaptive notch filter capable of tracking multiple complex sinusoid signals. Adaptive notch filters are commonly used in: Radar, Sonar, and Communic...
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rr-article-95371222015-01-01T00:00:00Z Adaptive notch filtering for tracking multiple complex sinusoid signals Paul T. Wheeler (7202648) Mechanical engineering not elsewhere classified Complex adaptive notch filter Notch bandwidth adaptation Tracking multiple complex sinusoid signals Mechanical Engineering not elsewhere classified This thesis is related to the field of digital signal processing; where the aim of this research is to develop features of an infinite impulse response adaptive notch filter capable of tracking multiple complex sinusoid signals. Adaptive notch filters are commonly used in: Radar, Sonar, and Communication systems, and have the ability to track the frequencies of real or complex sinusoid signals; thus removing noise from an estimate, and enhancing the performance of a system. This research programme began by implementing four currently proposed adaptive notch structures. These structures were simulated and compared: for tracking between two and four signals; however, in their current form they are only capable of tracking real sinusoid signals. Next, one of these structures is developed further, to facilitate the ability to track complex sinusoid signals. This original structure gives superior performance over Regalia's comparable structure under certain conditions, which has been proven by simulations and results. Complex adaptive notch filter structures generally contain two parameters: the first tracks a target frequency, then the second controls the adaptive notch filter's bandwidth. This thesis develops the notch filter, so that the bandwidth parameter can be adapted via a method of steepest ascent; and also investigates tracking complex-valued chirp signals. Lastly, stochastic search methods are considered; and particle swarm optimisation has been applied to reinitialise an adaptive notch filter, when tracking two signals; thus more quickly locating an unknown frequency, after the frequency of the complex sinusoid signal jumps. 2015-01-01T00:00:00Z Text Thesis 2134/17958 https://figshare.com/articles/thesis/Adaptive_notch_filtering_for_tracking_multiple_complex_sinusoid_signals/9537122 CC BY-NC-ND 4.0 |
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Mechanical engineering not elsewhere classified Complex adaptive notch filter Notch bandwidth adaptation Tracking multiple complex sinusoid signals Mechanical Engineering not elsewhere classified |
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Mechanical engineering not elsewhere classified Complex adaptive notch filter Notch bandwidth adaptation Tracking multiple complex sinusoid signals Mechanical Engineering not elsewhere classified Paul T. Wheeler Adaptive notch filtering for tracking multiple complex sinusoid signals |
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This thesis is related to the field of digital signal processing; where the aim of this research is to develop features of an infinite impulse response adaptive notch filter capable of tracking multiple complex sinusoid signals. Adaptive notch filters are commonly used in: Radar, Sonar, and Communication systems, and have the ability to track the frequencies of real or complex sinusoid signals; thus removing noise from an estimate, and enhancing the performance of a system. This research programme began by implementing four currently proposed adaptive notch structures. These structures were simulated and compared: for tracking between two and four signals; however, in their current form they are only capable of tracking real sinusoid signals. Next, one of these structures is developed further, to facilitate the ability to track complex sinusoid signals. This original structure gives superior performance over Regalia's comparable structure under certain conditions, which has been proven by simulations and results. Complex adaptive notch filter structures generally contain two parameters: the first tracks a target frequency, then the second controls the adaptive notch filter's bandwidth. This thesis develops the notch filter, so that the bandwidth parameter can be adapted via a method of steepest ascent; and also investigates tracking complex-valued chirp signals. Lastly, stochastic search methods are considered; and particle swarm optimisation has been applied to reinitialise an adaptive notch filter, when tracking two signals; thus more quickly locating an unknown frequency, after the frequency of the complex sinusoid signal jumps. |
| format |
Default Thesis |
| author |
Paul T. Wheeler |
| author_facet |
Paul T. Wheeler |
| author_sort |
Paul T. Wheeler (7202648) |
| title |
Adaptive notch filtering for tracking multiple complex sinusoid signals |
| title_short |
Adaptive notch filtering for tracking multiple complex sinusoid signals |
| title_full |
Adaptive notch filtering for tracking multiple complex sinusoid signals |
| title_fullStr |
Adaptive notch filtering for tracking multiple complex sinusoid signals |
| title_full_unstemmed |
Adaptive notch filtering for tracking multiple complex sinusoid signals |
| title_sort |
adaptive notch filtering for tracking multiple complex sinusoid signals |
| publishDate |
2015 |
| url |
https://hdl.handle.net/2134/17958 |
| _version_ |
1797467022263582720 |