Grating Lobes and Spatial Aliasing in Sparse Array Beampatterns
Data and Resources
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Matlab function to compute 2D FFTMatlab function
Matlab function to compute the two-dimensional spatial Fast Fourier Transform...
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Matlab code to recreate Fig. 20Matlab script
Matlab script will generate the exact data provided in...
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Dataset use, references, and contact informationplain text
"Readme" file provided additional information relating to "Grating Lobes and...
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Data to generate Fig. 20: Grating Lobes Due to...Organized with x data given in the first column and, for line plots, y data given in subsequent columns or, for surface plots, y data given in the second column and z or color data given in the third column. Column headers define each axis with units reported as "_units".
Sparsely sampled lattices on a regular grid introduce grating lobes in the...
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Data to generate Fig. 21: Sparse Array Before...Organized with x data given in the first column and, for line plots, y data given in subsequent columns or, for surface plots, y data given in the second column and z or color data given in the third column. Column headers define each axis with units reported as "_units".
A simple approach for mitigating grating lobes in a sparse lattice is to...
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Data to generate Fig. 22: Optimized Sparse...Organized with x data given in the first column and, for line plots, y data given in subsequent columns or, for surface plots, y data given in the second column and z or color data given in the third column. Column headers define each axis with units reported as "_units".
Periodicity in the beam pattern, here calculated and reported in Fourier...
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| identifier | ark:/88434/mds2-2595 |
| landingPage | https://data.nist.gov/od/id/mds2-2595 |
| language | {en} |
| license | https://www.nist.gov/open/license |
| modified | 2022-03-31 00:00:00 |
| programCode | {006:045} |
| publisher | National Institute of Standards and Technology |
| resource-type | Dataset |
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| theme | {"Advanced Communications:Wireless (RF)"} |
| Groups |
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| Tags |
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| isopen | False |
| license_id | other-license-specified |
| license_title | other-license-specified |
| maintainer | Mohamed Hany |
| maintainer_email | mohamed.hany@nist.gov |
| metadata_created | 2025-11-21T16:59:24.920111 |
| metadata_modified | 2025-11-21T16:59:24.920115 |
| notes | Calculated beam pattern in Fourier space of a unitary input given two sparsely sampled synthetic aperture arrays: 1. a regularly spaced array sampled at 2*lambda, where lambda is the wavelength of the 40 GHz signal, and 2. the regularly spaced array with random perturbations (of order ~<lambda) to the (x,y) spatial location of each sample point. This dataset is published in "An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures" by Vouras, et al. in IEEE Selected Topics in Signal Processing Recent Advances in Wideband Signal Processing for Classical and Quantum Synthetic Apertures. |
| num_resources | 6 |
| num_tags | 11 |
| title | Grating Lobes and Spatial Aliasing in Sparse Array Beampatterns |