Abstract: Methods and systems for obstructive sleep apnea diagnosis and prediction are disclosed. The methods and systems include: obtaining a white noise contaminated sensor signal for a patient; extracting a feature based on the white noise contaminated sensor signal; determining a matrix based on the feature; determining an intermittent forcing signal based on the matrix; determining an overcomplete representation of the intermittent forcing signal; and generating an obstructive sleep apnea indication based on the overcomplete representation and a threshold. Other aspects, embodiments, and features are also claimed and described.