Please NoteThis person can no longer be contacted through the School of Engineering and Computer Science at Victoria University of Wellington
Research InterestsMy main research interests are in the application of optimization methods for developing novel algorithms for signal and image processing applications. Some of my specific research areas include
- Sparse estimation algorithms and their applications in channel estimation
- Acoustic impulse response shaping
- Compressive sensing
Recent Publications L. Krishnan, T. Betlehem, and P.D. Teal. Fast algorithms for acoustic impulse response shaping. To appear in IEEE/ ACM Trans. Audio, Speech & Language Processing, Feb 2019, 27(2), pp. 392-403, DOI: 10.1109/TASLP.2018.2880317
 T. Betlehem, L. Krishnan, and P. Teal. Temperature robust active-compensated sound field reproduction using impulse response shaping. In Proc. IEEE Conf. Acoust., Speech & Sig. Proc., pp. 481-485, Calgary, April 2018.  P.D. Teal, L. Krishnan, and T. Betlehem. Efficient projection onto a low dimensional ball. J. Engineering Optimization, May 2018. DOI: 10.1080/0305215X.2018.1472252  L. Krishnan, T. Betlehem, and P.D. Teal. A statistically robust approach to acoustic impulse response shaping. IEEE Signal Processing Letters, vol.24, no.8, Aug. 2017.  L. Krishnan, P.D. Teal, and T. Betlehem. A robust sparse approach to acoustic impulse response shaping. In Proc. IEEE Conf. Acoust., Speech & Sig. Proc., pp. 738-742, Brisbane, April 2015.