Time domain beamforming system using selective multi phase interpolation filters
The time-domain beamforming system with a selective multiphase interpolation filter addresses computational and memory limitations by parallel processing original sensor signals, achieving real-time performance and precise beam steering without the need for interpolated samples.
Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- LIG DEFENSE & AEROSPACE CO LTD
- Filing Date
- 2023-11-03
- Publication Date
- 2026-07-21
AI Technical Summary
Conventional interpolation beamforming in sonar systems increases computational load and memory requirements, limiting real-time performance due to the need for multiple beam steerings and serial processing of interpolated sensor signals.
A time-domain beamforming system using a selective multiphase interpolation filter, which includes a sensor input buffer, multiphase interpolation filter coefficient storage, reference start point calculation, beam steering module, steering information storage, and multiphase interpolation filter selection calculation, allowing for parallel processing of original input sensor signals without generating interpolated samples.
Reduces memory usage and computation time by eliminating the need for generating interpolated samples, enabling real-time performance and precise beam steering independent of the interpolation factor, while supporting a large number of beam steerings.
Smart Images
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