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Frequency diverse array (FDA) antenna using uniform frequency increments produces a S-shaped range-angle-dependent transmit beampattern, which can provide more degrees of freedom (DOFs) to suppress the interferences with different ranges. However, the S-shaped beampattern is coupled in the range-angle dimension and consequently results in inaccurate target localizations. In this letter, we proposed...
Phased-array antennas are known for their capability to electronically steer a beam with high effectiveness, but beam
steering is fixed in an angle for all range cells. This paper reviews frequency diverse array (FDA) antennas. Different
from a phased array, an FDA uses a small frequency increment, as compared with the carrier frequency, across array
elements. The use of a frequency increment...
This paper proposes a scheme of multiple-input and multiple (MIMO) synthetic aperture radar (SAR) for ground moving targets detection. The proposed approach employs MIMO configuration with multiple antennas in azimuth and orthogonal waveform diversity. After cancelling the clutter and estimating the along-track velocity of the moving targets with the proposed double-interferometry processing technique...
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