| The Applicability of Minimum-Relative-Entropy Spectral Estimation: An Analysis and Critique |
21 JAN 87 |
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| Authors:
Nelson M. Blachman; NAVAL RESEARCH LAB WASHINGTON DC
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 | The principle of minimizing the relative entropy of the posterior spectral estimate with respect to the prior has been given a good theoretical foundation for stationary gaussian random processes. It is not as firm as one might like however, and its real value thus lies in how accurately it can determine spectra and how much computing is involved. The question remains open as to which applications are suitable for relative-entropy ... |
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| European Scientific Notes. Volume 31, Number 9, |
30 SEP 1977 |
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| Authors:
Nelson M. Blachman; victoria s. hewitson; OFFICE OF NAVAL RESEARCH LONDON (ENGLAND)
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| This is a monthly publication presenting brief articles concerning recent developments in European Scientific Research. It is hoped that these articles (which do not constitute part of the scientific literature) may prove of value to American scientists by disclosing interesting information well in advanced of the usual scientific publications. |
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| European Scientific. Volume 31, Number 8, |
31 AUG 1977 |
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| Authors:
Nelson M. Blachman; victoria s. hewitson; OFFICE OF NAVAL RESEARCH LONDON (ENGLAND)
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| This a monthly publication presenting brief articles concerning recent developments in European Scientific Research. It is hoped that these articles (which do not constitute part of the scientific literature) may prove of value to American scientists by disclosing interesting information well in advance of the usual scientific publications. |
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| European Scientific Notes. Volume 31, Number 7, |
31 JUL 1977 |
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| Authors:
Nelson M. Blachman; victoria s. hewitson; OFFICE OF NAVAL RESEARCH LONDON (ENGLAND)
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| This is a monthly publication presenting brief articles concerning recent developments in European Scientific Research. It is hoped that these articles (which do not constitute part of the scientific literature) may prove of value to American scientists by disclosing interesting information well in advance of the usual scientific publications. |
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| Direct Satellite Broadcasting. |
12 JUL 1977 |
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| Authors:
Nelson M. Blachman; OFFICE OF NAVAL RESEARCH LONDON (ENGLAND)
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| The Symposium on Direct Satellite Broadcasting (DSB), held in Dublin 23-25 May 1977, included 17 papers discussing the potentialities and problems of this new medium, which is to bring television to private homes via either 1-meter paraboloidal dishes or larger community antenna. This Symposium follows up the World Administrative Radio Conference of early 1977, which assigned frequencies for DSB in the 12-GHz band. Although intended primarily to rally support for ... |
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| European Scientific Notes. Volume 31, Number 6, |
30 JUN 1977 |
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| Authors:
Nelson M. Blachman; victoria s. hewitson; OFFICE OF NAVAL RESEARCH LONDON (ENGLAND)
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| This is a monthly publication presenting brief articles concerning recent developments in European Scientific Research. It is hoped that these articles (which do not constitute part of the scientific literature) may prove of value to American scientists by disclosing interesting information well in advance of the usual scientific publications. |
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| Communication Engineering in Finland, |
29 MAR 1977 |
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| Authors:
Nelson M. Blachman; OFFICE OF NAVAL RESEARCH LONDON (ENGLAND)
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| The principal institution for electrical engineering education in Finland is the Helsinki University of Technology. The Technical Research Center of Finland is the leading organization in engineering research, and Nokia Electronics is the leading manufacturer of electronic equipment. This report discusses their activities--particularly in the field of communication engineering--and includes some remarks on the work going on elsewhere as well as on the general historical background. (Author) |
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| IEE International Conference on Millimetric Waveguide Systems, |
19 JAN 1977 |
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| Authors:
Nelson M. Blachman; OFFICE OF NAVAL RESEARCH LONDON (ENGLAND)
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| At the headquarters of the Institution of Electrical Engineers in London a symposium took place from 9-12 November 1976 on the use of circular waveguides for the long-distance transmission of telephone and related traffic. It served principally as a forum for the presentation of the work of six countries--France, West Germany, Italy, Japan, the US, and the UK--and it included a visit to the UK Post Office Research Centre to ... |
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| Detection of a PSK Signal Transmitted Through a Hard-Limited Channel |
SEP 1973 |
8 pages |
| Authors:
Pravin C. Jain; Nelson M. Blachman; STANFORD RESEARCH INST ARLINGTON VA STRATEGIC STUDIES CENTER
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 | This paper considers the problem of the detection of a binary phase- modulated carrier which has been transmitted along with noise through a hard- limiting repeater, corrupted by additional noise, and demodulated by cross correlation and sampling at the receiver. Three equivalent expressions are obtained for the error probability of the receiver output. Two of these expressions take the form of an infinite series involving either confluent hypergeometric functions or ... |
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| A GENERALIZATION OF WOODWARD'S THEOREM AND THE SPECTRUM OF A HIGH HARMONIC OF A SINUSOID PLUS NARROW-BAND GAUSSIAN NOISE |
28 MAR 1961 |
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| Authors:
Nelson M. Blachman; SYLVANIA ELECTRONIC SYSTEMS-WEST MOUNTAIN VIEW CALIF ELECTRONIC DEFENSE LABS
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| Woodward's theorem asserts that the power spectrum of a slowly frequency-modulated signal is given by the first-order probability density of the modulation. It can be extended to cover the case where there is slow amplitude modulation as well (correlated or uncorrelated and deterministic or random) by weighting each frequency by the mean-square amplitude associated with it. The modulation can be regarded as slow if its bandwidth is small compared to ... |
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