%0 Journal Article %T Adaptive primary user's signal detection algorithm based on matrix accumulation estimation for cognitive radio %A Wang Hongjun %A Bi Guangguo %A Zhong Zifa %A Zhang Shuo %J EURASIP Journal on Advances in Signal Processing %D 2011 %I Springer %X In this article, a new adaptive primary user's signal detection algorithm for cognitive radio, which integrates frequency-domain block adaptive filtering with a matrix accumulation estimation, is presented with detailed description' of the concept and process of the algorithm. Then, the performance of the algorithm is analyzed and compared by simulation according to the practical requirement of cognitive radio. The result shows that the proposed detection algorithm can detect weak signals quickly and effectively with higher detection probability. %K cognitive radio %K signal detection %K block-FFT adaptive filter %K matrix accumulation estimation %U http://asp.eurasipjournals.com/content/2011/1/51