Publications [#283666] of Qing H. Liu

Papers Published

1. Chen, GP; Yu, WB; Zhao, ZQ; Nie, ZP; Liu, QH, The design of ElectroMagnetically Induced Thermo-Acoustic system and the signal processing using wavelet analysis with a soft thresholding method, Tien Tzu Hsueh Pao/Acta Electronica Sinica, vol. 36 no. 6 (June, 2008), pp. 1130-1134, ISSN 0372-2112
   (last updated on 2023/08/08)

   Abstract:
   This paper presents an experimental system of ElectroMagnetically Induced Thermo-Acoustic (EMITA). Focusing on the signal extraction of EMITA, several treatments are adopted to improve the compatibility of the system under high power electromagnetic pulses. To improve the transition of the microwave energy to the biologic tissue, the cross section of the vessel front to the microwave is designed as bevel; to decrease the electromagnetic impose of ultrasound transducer due to the microwave pulse, the coupling liquid is used after careful study. In order to extract the EMITA signals from low signal-to-noise ratio (SNR) background, wavelet analysis with soft thresholding is used to filter the strong noise. Experimental results indicate the effectiveness of the wavelet analysis in the extraction of EMITA signals.