基于简化多重分形谱算法的声信号预警识别

摘要

针对目前常用多重分形谱算法运算量大,难以用于实际目标识别的现状,提出基于简化多重分形谱算法的声信号预警识别方法.该方法计算时间短,所需样本量少,误判率低,在信噪比较低时预警识别综合性能高于目前常用的过零率检测方法.%A tank-radiated noise identification method based on simplified multi-fractal spectrum to solve the problem of large calculation amount of the present acoustic passive identification method for early warning was proposed in this paper. The experimental results indicated that the performance of early alarming of this method was better than zero-pass rate analyzing method for its less sampling number and lower error rate under low SNR.