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Academic Press Library in Signal Processing by Rama Chellappa, Sergios Theodoridis

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Figure 20.27 Desired and forbidden regions for the design of deterministic beamformers.

3.20.4.4 DOA estimation

DOA estimation algorithms can be used as a processing stage prior to beamforming. If the DOAs of the LOS and reflected signals and interferences can be determined, then it is possible to design a beamformer that, for instance, attenuates the reflections and interferences while maximizing the SNR of the LOS signal. Given the identifiability limitations of DOA estimation methods and their sensitivity to highly correlated signals, such a method would likely only be suitable in situations where there were a small number of multipath ...

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