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DTIC ADA450860: Suppression of Doppler Ambiguities for Linear Spars... |
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by Defense Technical Information Center |
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A key trade-on in airborne or spaceborne synthetic |
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aperture radar (SAR) design involves the pulse repetition |
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frequency (PRF) and the number and location or range and |
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Doppler ambiguities. The associated design issues are |
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complicated further when the system involves a sparse |
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array. A methodology is formulated based on selecting the |
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PRF to avoid range ambiguities in the envelope mainbeam. |
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The effects or the Doppler ambiguities falling within the |
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envelope mainbeam are mitigated by using an optimal |
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algorithm to generate weights that place nulls in the |
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pattern of the (sparse or contiguous) array in the |
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directions of the Doppler ambiguities. This approach can |
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be used for the analysis and design of airborne or |
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spaceborne SAR systems with contiguous or sparse arrays. |
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Date Published: 2018-06-03 22:49:54 |
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Identifier: DTIC_ADA450860 |
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Item Size: 16593115 |
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Language: english |
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Media Type: texts |
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# Topics |
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DTIC Archive; Roman, Jaime R ; AIR FO... |
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