Adaptive microphone beamforming
2016-08-23
5 0 0
4.0
Other
Earn points
Application background
Frequency invariant beamforming (Frequency-invariantBeamforming, FIB) is an important application in the acquisition and processing of the speech signal of the microphone array. The classical FIB design method is proposed in the model of far field plane wave. This paper presents the response variation spatial (SRV) Constrained Minimum (Linear) based on the near field spherical wave model.In the formation of Variance, LCMV, the spatial response function is used as the optimization condition, then the closed solution is obtained by the Lagrange multiplier method. However, the method is affected by the environmental interference and noise, and the value of the weight distribution needs to be floating. So this paper adopts the adaptive weighted frequency invariant wave velocity to form, which can adaptively select the weight value of the environment. Simulation examples demonstrate the validity of the proposed method and the correctness of theoretmatlab
波束
形成
适应
麦克风
Related Source Codes
GMSK Linear Receiver
0
0
no vote
NSGA-II algorithm
0
0
no vote
NSGA-III multi-objective optimization algorithm
0
0
no vote
Compressed sensing example
0
0
no vote
CFAR detector example
0
0
no vote
No comment