Doppler Wavefront Distortion Effects Due to Continuous Dynamic Array Focusing
Use of continuous dynamic focusing in an ultrasonic linear phased array system can cause doppler distortion of the received signals. This distortion results from variation of the effective beamformer delay during signal reception, and can affect both the received signal frequency and synthesized beamwidth.
KeywordsTarget Range Voltage Control Oscillator Phase Front Array Axis Array Center
Unable to display preview. Download preview PDF.
- O.T. von Ramm, “A Real-Time Digitally Controlled Ultrasound Imaging System,” Duke University, 1973.Google Scholar
- J.T. Walker and J.D. Meindl, “A Digitally Controlled CCD Dynamically Focused Phased Array,” Proc. IEEE Ultrasonic Symp., 1975, pp. 80–83.Google Scholar
- J.T. Walker, “A CCD Phased Array Ultrasonic Imaging System,” Stanford University, 1977.Google Scholar