cross-correlation
[krɔs ˌkɔrəˈleɪʃən]
nounfemininepl: cross-correlations / correlações cruzadas
correlação cruzada
1. A mathematical measure of similarity between two signals or sequences as a function of a time lag applied to one of them
The cross-correlation between the two audio signals revealed a time delay of 100 milliseconds.
A correlação cruzada entre os dois sinais de áudio revelou um atraso de tempo de 100 milissegundos.
2. A statistical technique used to measure the correlation between two variables at different time intervals or spatial positions
Scientists used cross-correlation analysis to study the relationship between temperature and precipitation patterns.
Os cientistas usaram análise de correlação cruzada para estudar a relação entre padrões de temperatura e precipitação.
3. In signal processing, a method for comparing how similar one function or signal is to a shifted version of another
Cross-correlation is essential in image registration and pattern matching applications.
A correlação cruzada é essencial em aplicações de registro de imagem e correspondência de padrões.
Cross-correlation is a fundamental concept in digital signal processing, statistics, and engineering across both American and Brazilian academic and professional contexts. The term is consistently translated as 'correlação cruzada' in Portuguese-speaking scientific communities. It is particularly important in telecommunications, seismic analysis, audio engineering, and image processing fields.
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