id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-29857	Chen, Jie; Wan, Min	On-time Extraction of Ultrasonic Waves Based on Wavelet Transform and AIC Criterion	2025	4	.pdf	application/pdf	1757	84	50	In the processing of ultrasonic echo data, the picking of echo arrival time is a crucial step, and the accuracy of picking directly affects the measurement position accuracy of the instrument and the final imaging effect. Although manual identification and picking of echo arrival time is relatively stable, it is inefficient and lacks real-time performance.	cache/ajst-29857.pdf	txt/ajst-29857.txt