摘要
提出了背景变化较大场合下脉冲信号检测的新算法,该算法基于双检波积分器,分别对背景噪声和脉冲信号进行检波处理,可实时跟踪背景的变化,自适应调整检测门限,适用于噪声背景变化较大的应用场合。指数加权积分算法的使用,解决了积分时间大的问题,适用于存储空间有限且又需要大积分时间的系统。经过TMS320C5502 DSP处理,该方法有很好的检测性能。
An algorithm based on two integrators is described. This method suits situation whose background has a big fluctuation. It can track the fluctuation in the background noise, and adjust the detection threshold adaptively. Power weighted integration algorithm can be used when the system has a limited storage and needs a large integration time. It has a good performance during simulation.
出处
《电声技术》
2011年第4期72-74,78,共4页
Audio Engineering
关键词
脉冲信号
被动检测
指数加权积分算法
pulse signal
passive detection
power weighted integration algorithm
