Direction finding of nonstationary signals using a time-frequency hough transform.
We consider the problem of direction finding for nonstationary signals impinging on an array of sensors. Making use of a time-frequency representation of the data, we are able to exploit the non-stationary nature of the source signals. We employ a generalized Hough transform to estimate the timefrequency signature of each source. The proposed method also allows direction finding when there are more sources than the number of array sensors.
|Main Author:||Cirillo, Luke A.|
|Other Authors:||Zoubir, Abdelhak M., Amin, Moeness G.|