Xiaonian He

  • Citations Per Year
Learn More
Orthogonal frequency ultrasound vibration (OFUV) pulses are developed to generate ultrasound radiation force for stimulating vibrations in a tissue region with preferred spectral distribution. So we can increase specific vibration harmonics in which the tissue mechanical response is concentrated. In order to achieve a better detection result, spectrum of(More)
BACKGROUND Ultrasound transient elastography technology has found its place in elastography because it is safe and easy to operate. However, it's application in deep tissue is limited. The aim of this study is to design an ultrasound transient elastography system with coded excitation to obtain greater detection depth. METHODS The ultrasound transient(More)
When applying the space-time coding technique into the ultrasound imaging system, the signal-to-noise-ratio (SNR) can be improved. However when the space-time coding combines with the conventional synthetic aperture techniques can result some ghost images because the conventional synthetic aperture technique cannot suppress the axial direction of the(More)
In the field of ultrasonic imaging technology, the problem of geometric distortion is often encountered, especially in the ultrasonic near-field. In this study, a new approach is proposed to compensate for geometric distortion in the synthetic aperture ultrasonic imaging system. This approach is based on the synthetic aperture ultrasonic holographic B-scan(More)
This work focuses on the internal mechanism of adding window technology and its application in the truncated long code ultrasound system. First, a simple introduction of the truncated long code is given in which the transmitted pulses are coded using different short codes from burst to burst, and all the echoes are organized together coherently in the later(More)
Predistortion technology is an adaptive, low cost and potential linearization method. Proper loop-delay estimation and compensation are important preconditions for ensuring the predistorter working well. But traditional loop-delay estimation algorithms are vulnerable to the amplifier's memory and nonlinear distortion. In this paper, based on the(More)
  • 1