Abstract

Optimum antenna placement is considered for MIMO radar performing velocity estimation. A general optimization strategy for velocity estimation using MIMO radar is derived based on the Cramer-Rao bound analysis. Optimal antenna placement is investigated.We show that when orthogonal signals are adopted for transmission, symmetrically placing the transmit antennas as well as the receive antennas achieves the best performance, and the relative position of the transmitter and receiver can be arbitrary. Under the same condition, when optimal antenna placement is employed, it is shown that increasing the signal time duration or the product of the number of transmitters and receivers can improve the velocity estimation accuracy.

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