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波束成形

该工具箱提供窄带和宽带波束形成器,多用户波束形成器,混合波束形成器和传统和自适应波束形成器。实现包括延迟和总和,霜冻,广义侧链消除,MVDR和LCMV

Beamformersenhance detection of signals by coherently summing signals across elements of arrays. Conventional beamformers have fixed weights while adaptive beamformers have weights that respond to the environment. Use adaptive beamformers to reject spurious or interfering signals from non-target directions. The toolbox supports narrowband and wideband beamformers.

Objects

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phased.LCMVBeamformer Narrowband LCMV beamformer
phased.MVDRBeamformer Narrowband minimum-variance distortionless-response beamformer
逐步.PhaseShiftBeamFormer. Narrowband phase shift beamformer
phased.FocusedSteeringVector 聚焦传感器阵列转向矢量
phased.SteeringVector Sensor array steering vector
分阶段。弗洛斯特·弗罗斯特BeamFormer. Frost beamformer
phased.GSCBeamformer Generalized sidelobe canceler beamformer
phased.SubbandMVDRBeamformer Wideband minimum-variance distortionless-response beamformer
phased.SubbandPhaseShiftBeamformer Subband phase shift beamformer
phased.TimeDelayBeamformer Time delay beamformer
phased.TimeDelayLCMVBeamformer Time delay LCMV beamformer

Blocks

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LCMV Beamformer Narrowband linear constraint minimum variance (LCMV) beamformer
MVDR Beamformer Narrowband MVDR (Capon) beamformer
Phase Shift Beamformer 窄带相移波束形成器
Frost Beamformer Frost beamformer
GSC Beamformer Generalized sidelobe canceller
次能带MVDR Beamformer 次能带MVDR beamformer(阉鸡)
Subband Phase Shift Beamformer Subband phase shift beamformer
Time Delay Beamformer 时滞波束形成器
时间延迟LCMV波束形成器 Time delay LCMV beamformer
Azimuth Broadside Converter Convert azimuth angle to broadside angle or broadside angle to azimuth angle

Functions

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cbfweights Conventional beamformer weights
lcmvweights Narrowband linearly constrained minimum variance (LCMV) beamformer weights
mvdrweights Minimum variance distortionless response (MVDR) beamformer weights
steervec 转向矢量
Blkdiagbfweights. MIMO channel block diagonalized weights
digbfweights. Diagonalize MIMO channel
omphybweights Compute hybrid beamforming weights using orthogonal matching pursuit
ompdecomp Decompose signal using orthogonal matching pursuit
az2broadside 将方位角和仰角转换为横向角度
Broadseaz. Convert broadside angle to azimuth angle
sensorcov Sensor spatial covariance matrix
sensorsig 在传感器阵列上模拟接收信号
pilotcalib Array calibration using pilot sources

Topics

波束成形

Conventional Beamforming

传统的波束成形执行窄带信号的空间滤波。

Adaptive Beamforming

Adaptive beamforming suppresses interference.

Wideband Beamforming

Wideband beamforming applies spatial filtering to wideband signals.

Introduction to Differential Beamforming

Use differential beamforming to form a linear differential microphone array.

Examine the Response of a Focused Phased Array

使用聚焦导向载体为分阶段阵列生成元素权重,并计算阵列响应。

波束成形Theory

波束成形Overview

Beamformers supported by Phased Array System Toolbox™.

Standards and Conventions

This section introduces the concept of baseband signals and defines the local and global coordinate systems used in the toolbox.

Units of Measure and Physical Constants

Phased Array System Toolbox uses the International System of Units (SI).