宽带chirp信号中提取窄带信号,用于超声波损伤检测研究-Wideband chirp signal extracted narrowband signal, ultrasonic testing for injury

从宽带信号中提取窄带toneburst信号，一次激励可以提取大量的超声窄带信号-Toneburst extract narrowband signal a broadband signal, a large number of ultrasonic excitation can be extracted narrowband signal