Optimal dimension reduction for array processing-generalized
S. Anderson, Arye Nehorai · IEEE Transactions on Signal Processing · 1995
The correspondence extends previously reported work on the possibility of achieving optimality of beamspace (BS) array processing parameter estimators, where use is made of dimensionally reduced data vectors. The optimality is with respect to the best possible element space (ESP) parameter estimation accuracy, i.e., the Cramer-Rao bound, and is valid for multiple parameters per emitter.>