A computationally efficient pulse compression method of Barker-coded excitation using a mismatched filter in medical ultrasound imaging.

ABSTRACT:

Purpose

Barker-coded excitation, which is well suited for portable ultrasound imaging because it preserves frame rate and uses binary encoding, exhibits a high range sidelobe level of 1/N after pulse compression. This limitation can be mitigated by employing a mismatched filter, albeit at the cost of increased computational complexity. This study proposes a pulse compression technique that applies a mismatched filter for Barker-coded excitation with reduced computational complexity.

Methods

In the proposed method, pulse compression is performed using complex baseband in-phase and quadrature (IQ) data after decimation rather than beamformed radio-frequency (RF) data. By decimating both the IQ data and the coefficients of the compression filter, hardware complexity can be redu

SUBMITTER: Han M 

PROVIDER: S-EPMC12853266 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature