Method and apparatus for estimating direction of arrival using generation of virtual received signals
AssigneeHyundai Mobis Co., Ltd.
InventorSeok Hyun Kang
Life of this patent
Estimating the term…
Abstract
A received signal DOA estimation method using generation of virtual received signals includes: generating a preset number of virtual antennas at preset positions of a plurality of actual antennas; generating received signals received from the virtual antennas; and generating a DOA estimation value through a DOA estimation algorithm using the received signals received from the virtual antennas and the received signals received from the actual antennas.
Claims12
A received signal direction of arrival (DOA) estimation method using generation of virtual received signals, comprising:
- generating a preset number of virtual antennas at preset positions of a plurality of actual antennas;
- generating received signals received from the virtual antennas;
- and
- generating a DOA estimation value through a DOA estimation algorithm using the received signals received from the virtual antennas and the received signals received from the actual antennas,
- wherein the generating of the virtual antennas comprises:
- generating a correlation matrix by combining the received signals received from the virtual antennas and the received signals received from the actual antennas, generating an angle estimation spectrum by using the generated correlation matrix, and generating a DOA estimation value.
A received signal DOA estimation apparatus using generation of virtual received signals, comprising:
- a Uniform Linear Array (ULA) reception antenna comprising a plurality of actual antennas;
- a reception unit configured to extract a predetermined signal from received signals received through the actual antennas of the ULA reception antenna and convert the extracted signal into a digital signal;
- and
- a signal processing unit configured to receive the digital signal from the reception unit, generate received signals received from a preset number of virtual antennas disposed at preset positions, and generate a DOA estimation value through a DOA estimation algorithm by using the received signals received from the actual antennas and the received signals received from the virtual antennas,
- wherein the signal processing unit is configured to generate a correlation matrix by combining the received signals received from the virtual antennas and the received signals received from the actual antennas, generate an angle estimation spectrum by using the generated correlation matrix, and generate a DOA estimation value.
Dependencies are inferred from the claim text.