Title : 
Complex-Frequency Poles of the Acoustic Scattering Amplitude, and Their Ringing
         
        
            Author : 
Howell, William E. ; Numrich, Susan K. ; Überall, Herbert
         
        
        
        
        
        
        
            Keywords : 
Acoustic pulses; Acoustic scattering; Backscatter; Pulse measurements; Reflection; Resonance; Resonant frequency; Surface waves; Transient analysis;
         
        
        
            Journal_Title : 
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/T-UFFC.1987.26907