能量检测是一种简单又有效的频谱感知技术,但是易于受到噪声不确定的困扰而影响其性能.文章针对能量检测中的噪声不确定性问题,提出了利用Huber混合模型的鲁棒能量感知方法,具体地推导了该方法的判决规则,分析了算法性能,并给出了仿真结果.仿真结果表明,在受到噪声不确定影响的情况下,鲁棒能量感知方法的性能优于传统能量感知方法的性能.

Energy detection is a simple and valid spectrum sensing method, but suffered from noise uncertainty. In order to solve this problem, this paper proposes a robust energy detection method based on Huber's mixed model. This paper derives the decision rule, analyzes the performance and presents the simulation results of the proposed method. The results show that the proposed robust energy detector is superior to the traditional method when noise uncertainty is present.