中文摘要：

该文针对分组突发通信中的信号检测问题，利用信号相关前后功率之比构建判决统计量，实现自适应门限信号检测。在判决门限中加入微小偏移量，避免实际应用中存在的虚警毛刺现象。在门限判决时加入滑动比较窗口，解决了检测精度不高的问题。理论分析和仿真结果表明，改进方案可以很好地实现信号的自适应门限检测。

英文摘要：

An adaptive threshold signal detection method based on the ration of signal power and correlation signal power for packet burst communication systems is studied. To avoid false alarm burrs in practical application, feeble offset is added in decision threshold. To raise the detection precision, a slipped compare window is introduced when executing decision. Theory analysis and simulation results show that the improved scheme can archive nice adaptive threshold signal detection performances.