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In this paper, we study the problem of wide-angle SAR imaging in the setting when pulses along the synthetic aperture are randomly subsampled, commonly referred to as interrupted SAR. We propose a regularized inversion method that decomposes the target into a set of scattering centers with limited persistence by utilizing the model based sparsity of scattering coefficients. Based on the prior work...
We present a compressive radar design that combines multitone linear frequency modulated (LFM) waveforms on transmit with classical stretch processor and sub-Nyquist sampling on receive. The proposed compressive illumination scheme has much fewer random elements compared to previously proposed compressive radar designs based on stochastic waveforms, resulting in reduced storage and complexity for...
We present a multi-input and multi-output (MIMO) radar system concept employing low-complexity, structured multi-tone modulated chirp waveforms for joint range and angle of arrival estimation with formal recovery guarantees. Previously structured random block Toeplitz and Circulant matrices that result from using random waveforms in time delay and angle of arrival estimation in the MIMO setting have...
We study the problem of sensor placement, when the set of sensors are interrogated sequentially to detect a target employing evading actions. We model the sensor management problem as a two stage game between the observer and the target: in the first stage sensor locations are chosen by the observer, in the second stage the observer and the target choose open-loop control strategies to optimize error...
We address the problem of resource allocation in extended wireless networks in the presence of user dynamics. We first characterized the first two order statistics of the interference in such networks where users arrive according to a spatio-temporal Poisson process where each user has a certain amount of information to transmit, specified by a probability distribution. We show that, user dynamics...
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