【摘 要】
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With the development and application of ultrasonic testing technology,the required number of sensors is increasing,which leads to extraordinary growth of pr
【机 构】
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Shenzhen Polytechnic,China
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With the development and application of ultrasonic testing technology,the required number of sensors is increasing,which leads to extraordinary growth of processing data volume.Since the traditional Nyquist sampling theo ry requires sampling frequency of signal must be greater than or equal to twice of the signals broadband,the sampling needs a large amount of data which contains lots of redundant information,in addition,this data obtaining pattern conducts sampling first and compressing later which requires large amounts of time and space for data access.
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