Multi-Coset Sparse Imaging Arrays
Author(s)Krieger, James D.; Kochman, Yuval; Wornell, Gregory W.
MetadataShow full item record
We develop an efficient structured sparse antenna array architecture for coherent imaging of sparse but otherwise unknown scenes. In this architecture, the array elements are configured in a periodic nonuniform pattern that can be viewed as the superposition of multiple sparse uniform subarrays. For such structure, we develop an efficient pattern design procedure using co-array analysis, and we describe robust and efficient algorithms implementing the required associated array processing, which comprise scene support recovery, followed by image reconstruction. In addition, we develop a practical method for detecting reconstruction failures when the scene density exceeds the level for which the array was designed, so that false images are not produced. As a demonstration of its viability, the architecture is used to reconstruct a simulated natural scene.
DepartmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
IEEE Transactions on Antennas and Propagation
Institute of Electrical and Electronics Engineers (IEEE)
Krieger, James D., Yuval Kochman, and Gregory W. Wornell. “Multi-Coset Sparse Imaging Arrays.” IEEE Trans. Antennas Propagat. 62, no. 4 (n.d.): 1701–1715.