Large array extent is usually required in order to adequately enhance the resolution of a beamformer and to improve its beam pat-tern. Due to physical constraints this requirement may not be met. This paper presents the results of an analytical and experimental study in the use of a signal extrapolation method to enhance the beamformer resolution for small array extent. A real-time implementation scheme is proposed. It is shown that the beam pattern and the resolution of the beamforrner can be improved. Examples for various situations are provided.
|Original language||English (US)|
|Number of pages||12|
|Journal||IEEE Transactions on Acoustics, Speech, and Signal Processing|
|State||Published - Oct 1984|
All Science Journal Classification (ASJC) codes
- Signal Processing