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DTIC ADA142204: Applications of Differential Phase Statistics to St... |
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by Defense Technical Information Center |
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Five papers have been prepared under this contract in |
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which recently developed differential phase statistics |
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have been successfully employed to obtain error rate |
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performance of differential modulation systems operating |
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under practical conditions. These practical conditions |
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included power imbalance, phase-change offset, noise |
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correlations and intersymbol interference. The modulation |
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systems considered were binary conventional and symmetric |
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DPSK, offset DPSK, and M-ary DPSK. The channels studied |
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were both terrestrial and satellite. Closed form |
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expressions, requiring some numerical integration, were |
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obtained in all cases. Extensive performance curves |
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showing the effects of the various impairments were |
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presented. Because satellite link performance depends |
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strongly upon the qualities of the uplink, as shown, it |
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was concluded that a satellite repeater is much less |
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effective than a detect and remodulate transponder in a |
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severe jamming environment. Asymptotic approximations to |
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M-ary DPSK were shown to extremely good, and it was |
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suggested that more emphasis be placed on such methods as |
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opposed to the more traditional, but much less accurate, |
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use of bounds. (Author) |
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Date Published: 2018-01-20 00:21:51 |
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Identifier: DTIC_ADA142204 |
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Item Size: 4546539 |
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Language: english |
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Media Type: texts |
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# Topics |
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DTIC Archive; Pawula,R F ; RANDOM AP... |
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