摘要
根据同步声信号参数已知的特点,提出一种对同步声信号进行宽带滤波加窄带滤波预处理,然后采用包络检波器估算同步声脉冲前沿与脉冲宽度的信号处理系统。仿真结果表明当输入信号信噪比较低条件下,本系统仍能较好地检测出同步声信号,具有一定应用价值。
A processing system based on broadband filer plus narrowband filter was presented, which was suitable for synchronous acoustic signal processing because its parameters were known. Detector was finally used to estimate former edge and pulse width of synchronous acoustic pulse. The sim-ulated result demonstrates that the system can well detect synchronous acoustic signal pulse even in low SNR (signal noise ratio) input signal, the system has a certain applied value.
出处
《建模与仿真》
2020年第2期136-141,共6页
Modeling and Simulation
基金
国家某重点科研项目(MJ-2016-S-42,MJ-2018-S-34),国防基础科研计划项目,国网浙江省电力有限公司科技项目(2020年),陕西省创新能力支撑计划项目(2019PT-03)以及全军共用信息系统装备预研专用技术项目、装备预先研究项目(共用技术)。
