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Table 1 Input parameters and corresponding variations introduced to the system

From: Optimisation of ultrasound liver perfusion through a digital reference object and analysis tool

Experiment number Parameter Range of variation Step
1 Gain - 20 to 20 dB 1 dB
2 Dynamic range 30 to 90 dB 5 dB
3 Gain and dynamic range - 20 to 20 dB 1 dB
30 to 90 dB 5 dB
4 Frequency 1 to 3 MHz 0.5 MHz