Title :
Sidelobe reduction of images with coded limited diffraction beams
Author :
Lu, Jian-Yu ; Cheng, Jiqi ; Peng, Hu
Author_Institution :
Dept. of Bioeng., Toledo Univ., OH, USA
Abstract :
Coded excitations are studied to reduce sidelobes and increase the signal-to-noise ratio (SNR) of limited diffraction imaging systems. Images of objects consisting of randomly distributed scatterers are constructed and image contrasts are studied quantitatively. Results show that with coded excitations, high contrast images can be constructed at a high SNR
Keywords :
biomedical ultrasonics; ultrasonic diffraction; ultrasonic scattering; SNR; biomedical ultrasound; coded excitations; coded limited diffraction beams; diffraction imaging systems; high contrast images; image contrasts; image sidelobe reduction; randomly distributed scatterers; signal-to-noise ratio; Acoustic beams; Biomedical optical imaging; Frequency modulation; Optical diffraction; Optical filters; Optical noise; Optical scattering; Optical sensors; Signal to noise ratio; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2001 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7177-1
DOI :
10.1109/ULTSYM.2001.992019
