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The frequency diverse array (FDA) using linearly increasing frequency increment yields an “S”-shape range-angle beampattern, which provides the potential capability to suppress range-dependent interferences. However, the FDA transmit beampattern is coupled in range and angle dimensions, which may degrade the output signal-to-interference-plus-noise ratio performance. In this letter, we propose a symmetrical...
For frequency diverse array (FDA) pattern synthesis, smaller aperture or fewer elements are expected to obtain the desired beampattern performance. This paper propose a new FDA beampattern synthesis approach by ℓ1-norm minimization and convex optimization. Given array aperture, a virtual uniform linear FDA array with much smaller element spacing and corresponding frequency increment is created first;...
Although phased-array beamforming has received much attention, it cannot effectively suppress the interferences that have the same direction angle but different ranges of the targets. More seriously, the targets may be submerged in the strong interferences and can not be identified. In this letter, we propose a range-dependent interference suppression via frequency diverse array (FDA) transmit beamforming...
In this paper, we propose a target localization method with frequency diverse array (FDA) multiple-input and multiple-output (MIMO) radar in sparse signal reconstruction perspective. We jointly use sparsity reconstruction method and FDA transmitting array. The essence of the proposed technique is to formulate the problem of angle and range estimation using sparsity enforced reconstruction method with...
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