빔포밍

이 툴박스는 협대역 및 광대역 빔포머, 다중 사용자 빔포머, 하이브리드 빔포머, 그리고 기존 방식 및 적응형 방식의 빔포머를 제공합니다. 구현 방법에는 지연 및 합산(delay-and-sum), Frost, 일반화된 사이드로브 제거, MVDR, LCMV가 포함됩니다.

빔포머는 배열의 각 요소의 신호를 코히어런트하게 합산하여 신호 검출을 향상시킵니다. 기존 방식의 빔포머는 고정 가중치를 갖는 반면, 적응형 빔포머는 환경에 대응하는 가중치를 갖습니다. 타깃이 아닌 방향에서 발생하는 스퓨리어스 신호 또는 간섭 신호를 거부하려면 적응형 빔포머를 사용합니다. 이 툴박스는 협대역 빔포머와 광대역 빔포머를 지원합니다.

객체

모두 확장

phased.LCMVBeamformerNarrowband LCMV beamformer
phased.MVDRBeamformerNarrowband minimum-variance distortionless-response beamformer
phased.PhaseShiftBeamformerNarrowband phase shift beamformer
phased.FocusedSteeringVectorFocused sensor array steering vector (R2021b 이후)
phased.SteeringVectorSensor array steering vector
phased.FrostBeamformerFrost beamformer
phased.GSCBeamformerGeneralized sidelobe canceler beamformer
phased.SubbandMVDRBeamformerWideband minimum-variance distortionless-response beamformer
phased.SubbandPhaseShiftBeamformerSubband phase shift beamformer
phased.TimeDelayBeamformerTime delay beamformer
phased.TimeDelayLCMVBeamformerTime delay LCMV beamformer

블록

모두 확장

LCMV Beamformer Narrowband linear constraint minimum variance (LCMV) beamformer
MVDR BeamformerNarrowband MVDR (Capon) beamformer
Phase Shift BeamformerNarrowband phase-shift beamformer
Steering VectorArray steering vector (R2023b 이후)
Frost BeamformerFrost beamformer
GSC BeamformerGeneralized sidelobe canceller
Subband MVDR BeamformerSubband MVDR (Capon) beamformer
Subband Phase Shift BeamformerSubband phase shift beamformer
Time Delay BeamformerTime-delay beamformer
Time Delay LCMV BeamformerTime delay LCMV beamformer
Azimuth Broadside ConverterConvert azimuth angle to broadside angle or broadside angle to azimuth angle

함수

모두 확장

arrayfactorArray factor of sensor arrays (R2022a 이후)
cbfweightsConventional beamformer weights
crlbCramer-Rao lower bound (R2026a 이후)
crlbtransformCramer-Rao lower bound (CRLB) of transformed parameters (R2026a 이후)
diffbfweightsDifferential beamforming weights for ULA and UCA (R2022a 이후)
lcmvweightsNarrowband linearly constrained minimum variance (LCMV) beamformer weights
minvarweightsWeights for minimum-variance array pattern synthesis (R2022b 이후)
mvdrweightsMinimum variance distortionless response (MVDR) beamformer weights
nullweightsNulling weights (R2026a 이후)
slcweightsGeneralized sidelobe canceller weights (R2026a 이후)
steervecSteering vector
blkdiagbfweightsMIMO channel block diagonalized weights
diagbfweightsDiagonalize MIMO channel
jsdmrfweightsCreate RF precoding weights (R2023a 이후)
jsdmbbweightsCreate MU-MIMO baseband precoding weights (R2023a 이후)
omphybweightsCompute hybrid beamforming weights using orthogonal matching pursuit
ompdecompDecompose signal using orthogonal matching pursuit
az2broadsideConvert azimuth and elevation angle to broadside angle
broadside2azConvert broadside angle to azimuth angle
sensorcovSensor spatial covariance matrix
sensorsigSimulate received signal at sensor array
pilotcalibArray calibration using pilot sources
unwrap2Two-dimensional phase unwrapping (R2026a 이후)
phasediffvarPhase derivative of variance (R2026a 이후)

도움말 항목

빔포밍

빔포밍 이론