Reliable assessment Acoustic impedance 1 Acoustics 1 Asymptotic estimates 1 Asymptotic solutions 1 Discrete mathematical models 1 Errors 1 Finite difference method 1 Finite difference model 1 Frequency domain analysis 1 Frequency independent 1 Head related transfer function 1 Machine learning models 1 Muscle 1 Muscle contractions 1 Muscle fatigues 1 One-dimensional 1 Radio waves 1 Radiofrequency signals 1 Regression analysis 1 Single element 1 Solution verification 1 Sonomyography 1 Support vector machines 1 Time series classifications 1 Transfer functions 1 Ultrasonic applications 1 Ultrasonic transducers 1 Ultrasound transducers 1 Wave equations 1