Bian Guangyu, Wang Yi, Bai Baoping, Li Jiake, Chen Xiaodong. Phased Array Imaging Algorithm for Endoscopic Ultrasound Based on Coded Excitation[J]. Laser & Optoelectronics Progress, 2018, 55(1): 11103
- Laser & Optoelectronics Progress
- Vol. 55, Issue 1, 11103 (2018)
Fig. 1. Geometric representation of delay time computation
Fig. 2. Principle of SA algorithm
Fig. 3. Flow chart of LFM Barker SA algorithm
Fig. 4. Simulation results of B-model ultrasound image (a) DAS algorithm; (b) Pulse SA algorithm; (c) LFM Barker SA algorithm
Fig. 5. Axial distance of scattering points (z=25.77)
Fig. 6. Lateral distance of scattering points (z=40.12)
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Table 1. Basic parameters of Field Ⅱ simulation model
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Table 2. Lateral distances of image points in three algorithms
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