Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 17, Issue 2, Pages 209-212Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2017.2780241
Keywords
Distributed radar; interferometry; radar; radar measurements; target tracking
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Direct measurements of the angle rate of moving objects using a distributed radar have recently been demonstrated in theory and practice. In this letter, the theoretical accuracy of angle rate measurements using a simple correlation receiver is derived and compared to the theoretical accuracy of a more general but less intuitive root-multiplier receiver described in previous work. In particular, the correlation receiver bound on angle rate accuracy is shown to be dependent on the radiation intensity of the electric field rather than the field itself, as is the case for the root-multiplier receiver. The result is that the correlation receiver does not as closely represent the optimal form to achieve the theoretical bound on measurement accuracy. However, despite this, it is shown that there are clear operational regions where the correlation receiver nonetheless outperforms the more general root-multiplier receiver.
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