The time-domain wideband beamforming algorithm can output continuous waveforms in the time domain, which can improve the processing performance of array system. The time-domain wideband beamforming algorithm of the Frost structure needs to compensation the phase of the incident signal to the same angle through pre-delay. This paper proposes a robust Frost time-domain wideband beamforming method based on phase compensation, which integrates the pre-delay into the coefficient solution of the filter, suppresses the interference by adjusting the main lobe, and constraining the width of the main lobe to increases the robustness of the beamformer, its effectiveness is proved by simulation experiments.
Time domain broadband beamforming algorithm can improve the processing performance of sonar array system because it can output continuous waveforms in time domain. In view of the narrow null suppression in the interference direction and the shallow null depth limited by the interference power in traditional beamforming, an algorithm based on null broadening and null deepening is proposed to improve the robustness of the beam in the interference direction, and the time-domain waveform distortion suppression of the beamformer is increased by reducing the main lobe width, The simulation results show its effectiveness.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.