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| 03044nam 2200445zi 4500 |
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| 001 | 9.892625 |
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| 003 | CaOODSP |
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| 005 | 20221107173225 |
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| 006 | m o d f |
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| 007 | cr bn||||||||| |
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| 008 | 201020s1984 onca ob f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 086 | 1 |aCo24-3/8-725-1984E-PDF |
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| 100 | 1 |aJenkins, Robert W., |eauthor. |
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| 245 | 10|aImplementing a matrix-inversion algorithm in a limited-precision adaptive antenna array processor / |cby Robert W. Jenkins. |
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| 264 | 1|aOttawa : |bCommunications Research Centre, |c1984. |
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| 300 | |a1 online resource (iii, 20 pages) : |billustrations. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |aCRC technical note ; |vno. 725 |
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| 500 | |a"Directorate of Military Communications." |
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| 500 | |a"December 1984." |
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| 500 | |a"This work was sponsored by the Department of National Defence, Research Development Branch, under Project No. 32B75." |
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| 500 | |aDigitized edition from print [produced by Innovation, Science and Economic Development Canada]. |
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| 504 | |aIncludes bibliographical references (page 18). |
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| 520 | 3 |a"The effect of computation accuracy on the performance of a small adaptive antenna system using a digitally-implemented matrix inversion algorithm is examined. A single-board array processor with 16-bit mantissa floating-point accuracy is compared with a VAX-11/750 computer having 24-bit accuracy in the single-precision mode, and 56-bit accuracy in the double-precision mode. The effects of limited precision on array performance are worse when the signal covariance matrix to be inverted is ill-conditioned (i.e., nearly singular), as is the case with an n-element array in the presence of less than n unrelated signals and a low system noise level. Using a simulated signal environment consisting of a wanted communications signal, a single jamming signal, and a variable system noise level, the performance of the array is evaluated. A need for about -20 dB of artificially-injected system noise (relative to the total signal) is demonstrated in the case of the singleboard array processor, in order that the covariance matrix be sufficiently well-conditioned for adequate array performance"--Abstract, page 1. |
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| 530 | |aIssued also in print format. |
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| 650 | 0|aAdaptive antennas|xSimulation methods. |
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| 650 | 0|aAntenna arrays|xSimulation methods. |
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| 650 | 0|aMatrix inversion|xData processing. |
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| 650 | 0|aComputer algorithms. |
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| 650 | 6|aAntennes adaptatives|xMéthodes de simulation. |
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| 650 | 6|aAntennes-réseaux|xMéthodes de simulation. |
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| 650 | 6|aMatrices|xInversion|xInformatique. |
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| 650 | 6|aAlgorithmes. |
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| 710 | 2 |aCommunications Research Centre (Canada), |eissuing body. |
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| 830 | #0|aCRC technical note ;|vno. 725.|w(CaOODSP)9.882494 |
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| 856 | 40|qPDF|s1.07 MB|uhttps://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-8-725-1984-eng.pdf |
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