Primary user detection method based on time domain continuity

• Main Authors: YANG XI, ZHAO RUI, PENG SHENGLIANG, GAO RENYANG
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2016
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The invention discloses a primary user detection method based on time domain continuity. The method comprises the steps of: keeping the same property according to the state of a primary user within a plurality of time slots, and using a detection result of a plurality of completed time slot detections to assist the completion of a current detection; adopting a Bayesian energy detection algorithm based on the time domain continuity to acquire a decision threshold of the current detection; and comparing observed energy with the decision threshold, and judging whether a primary user signal exits. The technical scheme of the invention reduces the bayes cost and improves the detection precision of the current detection, and the detection precision is better than that of the ordinary Bayesian energy detection algorithm, and up to 1/3 reduction in a detection error can be realized. 本发明公开了种基于时域延续性的主用户检测方法，根据主用户状态在若干个时隙内保持不变的性质，利用已完成的若干个时隙检测的检测结果来协助完成当前检测；采用基于时域延续性的贝叶斯能量检测算法获得当前检测的判决门限；将观测能量与所述判决门限进行比较判断出主用户信号是否存在。本发明