Prabhavathy, AS and Sreenivas, TV (1992) Noise robustness in multi-level crossing interval based method of spectral estimation. In: Proceedings of the Fourth Australian International Conference on Speech Science and Technology, 1-3 Dec. 1992, Brisbane, Qld., Australia, pp. 118-123.Full text not available from this repository.
A new method of sinusoid estimation in noise using multi-level crossing interval information is presented. Using the statistics of level crossing intervals a sinusoid detection criterion is formulated and an expression for threshold SNR is derived for any single level. The analysis is extended to a pooled set of multi-level crossing intervals resulting in a better SNR threshold of detecting a sinusoid. It is demonstrated that the multi-level crossing information is more robust than single level crossing information and the robustness improves with increasing contribution from higher levels.
|Item Type:||Conference Paper|
|Additional Information:||Copyright of this article belongs Australian Speech Science and Technology.|
|Keywords:||signal detection;spectral analysis|
|Department/Centre:||Division of Electrical Sciences > Electrical Communication Engineering|
|Date Deposited:||10 Jan 2008|
|Last Modified:||12 Jan 2012 07:01|
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