Improvement of source number estimation based on information theoretic criteria
Xu Xu · Chinese Journal of Radio Science · 2007
The algorithms of source number estimation and their improved algorithms based on information theoretic criteria (Akaike Information Theoretic Criteria and Minimum Description Length Criteria), couldn’t get a good performance both in the low SNR and short snapshots.From the basic MDL criteria, and considering the advantages and shortfalls of the AIC criteria and MDL criteria, a new improved algorithm is presented in this paper. It modifies the penalty function of the criteria by introducing the effect factor, and thus shows a good performance both in the low SNR and short snapshots. Furthermore, it shares the advantages of strong consistency and low complexity. The simulation demonstrates the efficiency of the improved algorithm.