说明：  本文提出了一种双重序贯检测的协作频谱感知（ＣＳＤＳ）方法，此方法在低信噪比条件下，在保持感知性能的同时，所需平均样本数和平均感知时间低于能量检测的４０％，且协作开销较现有协作序贯检测方法显著减少。
(In this paper, a cooperative spectrum sensing (CSDS) method based on dual sequential detection is proposed. The average number of samples and average sensing time required by this method are less than 40% of the energy detection while maintaining the sensing performance at low SNR, and the cooperative overhead is significantly reduced compared with the existing cooperative sequential detection methods.)