摘要
在假设混响模型为一时间随机过程F(t)的基础上,利用信号模糊函数的概念,分析推导了混响干扰起伏表达式,建立了线性调频信号抗混响起伏模型,并对相同脉宽、相同主频条件下的调频信号和单频信号的混响起伏作了比较,用实验的记录结果证实了理论模型的合理性。
Supposing that reverberation model is a time random process F(t) ,firstly this paper analyses and deduces the expression of reverberation welter according to the concept of fuzzy function, then establishes the model of anti - reverberation welter with linear frequency modulation signal. On condition of modulated frequency signal and single frequency signal with the same pulse width and main frequency, a comparison of reverberation welter is made. Lastly, the rationality of model is approved with experimental record.
出处
《舰船科学技术》
北大核心
2004年第1期42-45,共4页
Ship Science and Technology
关键词
线性调频信号
模糊函数
抗混响
模型
linear frequency modulation signal
fuzzy function
anti - reverberation
