Corrections to “Range-Angle-Dependent Beamforming of Pulsed-Frequency Diverse Array” [Jul 15 3262-3267]

The approach, proposed in “Range-Angle-Dependent Beamforming of Pulsed-Frequency Diverse Array,” IEEE Trans. Antennas Propag. vol. 63, no. 7, pp. 3262-3267, Jul., 2015, is intended to achieve a quasi-static transmit beampattern with pulsed-frequency diverse array (FDA). The derived constraint is too rigorous; thus, FDA approaches the conventional phased array to some extent. This paper proposes an effective approach to resolve the time-varying issue of FDA at the receiver based on the model established in the above paper. The proposed approach exhibits a more flexible capability in receive beamforming as the constraint imposed on the pulse duration is released.