Matches in SemOpenAlex for { <https://semopenalex.org/work/W1956771554> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W1956771554 abstract "Determining the confidence intervals for a spectral estimate requires knowledge of its probability density function. Except when the spectral estimate is the sum of the magnitude squared of independent and identically distributed Gaussian random variables for which the Chi-squared distribution is applicable, expressions for this probability density are not available. Tapering of the original time series, unequal weighing in the spectral averaging and overlapping estimates from different time segments, all of which are routinely done in practice, introduce dependencies and differences in the distribution of the random variables used to form the spectral estimate. These effects make the Chi-squared model inapplicable in many situations. In most approaches, density is simply approximated as being Chi-squared with an effective number of degrees of freedom calculated from the variance of the estimate. Unfortunately, this can be inaccurate in approximating the tails of the density where confidence interval calculations are usually done. Determining confidence intervals is similar to calculating the performance probabilities, e.g., false alarm and miss probabilities in detection and communication theory. For this, the approach of tilted densities has led to very accurate approximations. In this approach the probabilities are calculated using the semi-invariant function and its derivatives for which analytic expression can easily be derived. The tilted density approach has been applied to determine the confidence intervals for spectral estimates in the general case where tapering, unequal weighing and/or segment overlapping are done. Finally, the accuracy of the equivalent degrees of freedom approach is evaluated." @default.
- W1956771554 created "2016-06-24" @default.
- W1956771554 creator A5039040352 @default.
- W1956771554 date "2005-03-24" @default.
- W1956771554 modified "2023-09-25" @default.
- W1956771554 title "Confidence interval determination for spectral estimates using Tilted densities" @default.
- W1956771554 cites W1507360076 @default.
- W1956771554 cites W1536252645 @default.
- W1956771554 cites W1972252645 @default.
- W1956771554 cites W2018742520 @default.
- W1956771554 cites W2042587503 @default.
- W1956771554 cites W2060605975 @default.
- W1956771554 cites W2106822551 @default.
- W1956771554 doi "https://doi.org/10.1109/icassp.1983.1172008" @default.
- W1956771554 hasPublicationYear "2005" @default.
- W1956771554 type Work @default.
- W1956771554 sameAs 1956771554 @default.
- W1956771554 citedByCount "1" @default.
- W1956771554 crossrefType "proceedings-article" @default.
- W1956771554 hasAuthorship W1956771554A5039040352 @default.
- W1956771554 hasConcept C105795698 @default.
- W1956771554 hasConcept C114138010 @default.
- W1956771554 hasConcept C121332964 @default.
- W1956771554 hasConcept C121684516 @default.
- W1956771554 hasConcept C122123141 @default.
- W1956771554 hasConcept C141513077 @default.
- W1956771554 hasConcept C163716315 @default.
- W1956771554 hasConcept C168110828 @default.
- W1956771554 hasConcept C197055811 @default.
- W1956771554 hasConcept C208081375 @default.
- W1956771554 hasConcept C2776292839 @default.
- W1956771554 hasConcept C2776836416 @default.
- W1956771554 hasConcept C28826006 @default.
- W1956771554 hasConcept C33923547 @default.
- W1956771554 hasConcept C41008148 @default.
- W1956771554 hasConcept C44249647 @default.
- W1956771554 hasConcept C62520636 @default.
- W1956771554 hasConceptScore W1956771554C105795698 @default.
- W1956771554 hasConceptScore W1956771554C114138010 @default.
- W1956771554 hasConceptScore W1956771554C121332964 @default.
- W1956771554 hasConceptScore W1956771554C121684516 @default.
- W1956771554 hasConceptScore W1956771554C122123141 @default.
- W1956771554 hasConceptScore W1956771554C141513077 @default.
- W1956771554 hasConceptScore W1956771554C163716315 @default.
- W1956771554 hasConceptScore W1956771554C168110828 @default.
- W1956771554 hasConceptScore W1956771554C197055811 @default.
- W1956771554 hasConceptScore W1956771554C208081375 @default.
- W1956771554 hasConceptScore W1956771554C2776292839 @default.
- W1956771554 hasConceptScore W1956771554C2776836416 @default.
- W1956771554 hasConceptScore W1956771554C28826006 @default.
- W1956771554 hasConceptScore W1956771554C33923547 @default.
- W1956771554 hasConceptScore W1956771554C41008148 @default.
- W1956771554 hasConceptScore W1956771554C44249647 @default.
- W1956771554 hasConceptScore W1956771554C62520636 @default.
- W1956771554 hasLocation W19567715541 @default.
- W1956771554 hasOpenAccess W1956771554 @default.
- W1956771554 hasPrimaryLocation W19567715541 @default.
- W1956771554 hasRelatedWork W1580556838 @default.
- W1956771554 hasRelatedWork W1973756475 @default.
- W1956771554 hasRelatedWork W2002122540 @default.
- W1956771554 hasRelatedWork W2015822181 @default.
- W1956771554 hasRelatedWork W2016651796 @default.
- W1956771554 hasRelatedWork W2017016292 @default.
- W1956771554 hasRelatedWork W2026632944 @default.
- W1956771554 hasRelatedWork W2036611155 @default.
- W1956771554 hasRelatedWork W2042880641 @default.
- W1956771554 hasRelatedWork W2055452329 @default.
- W1956771554 hasRelatedWork W2065470567 @default.
- W1956771554 hasRelatedWork W2082767236 @default.
- W1956771554 hasRelatedWork W2105925542 @default.
- W1956771554 hasRelatedWork W2131336573 @default.
- W1956771554 hasRelatedWork W2135441181 @default.
- W1956771554 hasRelatedWork W2962825208 @default.
- W1956771554 hasRelatedWork W3085078526 @default.
- W1956771554 hasRelatedWork W3156984045 @default.
- W1956771554 hasRelatedWork W748455233 @default.
- W1956771554 hasRelatedWork W637795728 @default.
- W1956771554 isParatext "false" @default.
- W1956771554 isRetracted "false" @default.
- W1956771554 magId "1956771554" @default.
- W1956771554 workType "article" @default.