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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Berger, S.D. |
| Copyright Year | 2002 |
| Description | Author affiliation: Air Force Res. Lab. (AFRL/VSS), Kirtland AFB, NM, USA (Berger, S.D.) |
| Abstract | We investigate the application of nonuniform sampling reconstruction to sparse array beamforming to gain insight into its potential and identify additional challenges. The central concept of the nonuniform sampling beamformer is to use the nonuniform samples to reconstruct the samples of a uniform array with the same sampling density as the nonuniform array and then perform conventional beamforming. Our results show the potential of replacing elements in a sparse uniform linear array with uniform linear subarrays and using a nonuniform sampling reconstruction formula in improving the near-in (bandwidth supported by the array sampling density) grating lobes performance. However, this improved performance comes at the expense of significantly worsened performance in the out-of-band region (beyond the near-in grating lobe region). Additionally, the performance of the nonuniform sampling beamformer is extremely sensitive to phase noise. Although increasing the sampling density improved performance, the out-of-band performance and sensitivity are still areas of concern for most sparse arrays. |
| Sponsorship | IEEE Los Angeles Council IEEE Aerospace & Electron. Syst. Soc. Northrop Grumman Corp. Raytheon Co |
| Starting Page | 98 |
| Ending Page | 103 |
| File Size | 541605 |
| Page Count | 6 |
| File Format | |
| ISBN | 078037357X |
| DOI | 10.1109/NRC.2002.999701 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-04-25 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Nonuniform sampling Array signal processing Sampling methods Linear antenna arrays Gratings Satellite broadcasting Apertures Satellite antennas Laboratories Performance analysis |
| Content Type | Text |
| Resource Type | Article |
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