Digital Processing of Ultrasonic Data by Deconvolution
Eckart Hundt, Elmar A. Trautenberg · IEEE Transactions on Sonics and Ultrasonics · 1980
Abstrocr-Digital deconvolution of ultrasonic echo signals improves resolution and quality of ultrasonic images. Filtering usual B-scan images with a special digital fdter increases the lateral resolution by 50 percent. The filter is constructed from the measured signal amplitudes across the transmitter beam. By an empirical approach, it is optimized for low noise and high resolution. This method for lateral filtering produces good results for a great variety of test objects. The quality of the filter is maintained over a great range of depth, where the original beamwidth varies about 30 percent. This filtering method has high stability, such that application on measured profdes that are heavily disturbed does not increase noise nor produce disturbances.