V.H.F. propagation by ionospheric scattering and its application to long-distance communication

Saxton, Jenny; White, R.W.; Luscombe, G.W.

doi:10.1049/pi-b-1.1956.0151

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…Earlier experiments of frequency dependence [7,31] indicated a higher exponent scaling law between 50 and 100-:\1c, than that measm ed between 30 and 50Mc. Because the scattering process acts like a narrow band filter on the sp ectrum (sec.…”

Section: Frequency Dependencementioning

confidence: 79%

Relation of turbulence theory to ionospheric forward scatter propagation experiments

Wheelon¹

1960

J. RES. NATL. BUR. STAN. SECT. D. RAD. PROP.

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This p aper atte mp ts to relate t ur b ul ence t heo ri es to radio meas ure men ts on vhf ionospheric fo r ward scatter circui ts. T o t his end , t he sin gle scatterin g descrip t ion of th e electromag net ic res po nse of electron de ns ity irreg u la ri t ies and t he correspondin g trans m issio n express io n a re e valuated. Statistical di str ibutio ns of sig nal levels a re fo und t o ag ree wi t h a scatt erin g model. Th e several t heo ri es fo r t urbule nt mixin g of t he electron density a rc then s umma ri zed. A t urbule nce mix in g model is co mpa red favo rab ly with exp erim e nta l data o n absolu te sig na l levels a nd t he ir diurn al a nd seasona l va ri a ti o ns. Sca tteri ng heights in t he io nosphere res ponsible fo r th e signa ls a re a lso con siste nt wit h these t heo ri es. Freq ue ncy a nd di sta nce depe nd ence scalin g la ws a rc co mpa red bricfl y \,yit h t he d a ta. The scatter sig nal behav io r dur in g s udd en ionos pher ic di sturba nces is also expla ined. No atte mp t is made to co mpa re meteo ri c a nd t u rbu le nce scatter co ntr ibu t ions to t he meas ured qu a ntit ies in t hi s pa per. App roximately t hir t y refere nces a re give n.

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Section: Frequency Dependencementioning

confidence: 79%

Relation of turbulence theory to ionospheric forward scatter propagation experiments

Wheelon¹

1960

J. RES. NATL. BUR. STAN. SECT. D. RAD. PROP.

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“…The standard deviations can then be calculated from the values of R [see eqn. (2)] for the fixedspacing observations, with results as shown in Fig. 3.…”

Section: The Paper Is An Official Communication From the Radio Researmentioning

confidence: 94%

The angular distribution of energy received by ionospheric forward scattering at very high frequencies

Bain¹

1958

Proceedings of the IEE - Part B: Radio and Electronic Engineering

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“…It is well-known that the scattered power in normal ionospheric scatter propagation is inversely proportional to about the fifth or sixth power of frequency [8,25,26,27]. Experiments show, however, that the frequency exponent increases in the case of sporadic E. It is reported by Davis, Smith and Ellyett [28] that the median value of the frequency exponent in sporadic-E propagation is 12 during summer time…”

Section: Frequency Dependence Of Sporadic-e Propagationmentioning

confidence: 95%

A theoretical study of sporadic-E structure in the light of radio measurements.

Tao¹

1961

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THE NATIONAL BUREAU OF STANDARDS scope of activities of the National Bureau of Standards at its major laboratories in Washington, D.C., and Boulder, Colo., is suggested in the following listing of the divisions and sections engaged in technical work. In general, each section carries out specialized research, development, and engineering in the field indicated by its title.A brief description of the activities, and of the resultant publications, appears on the inside of the front cover.

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V.H.F. propagation by ionospheric scattering and its application to long-distance communication

Cited by 3 publications

References 15 publications

Relation of turbulence theory to ionospheric forward scatter propagation experiments

Relation of turbulence theory to ionospheric forward scatter propagation experiments

The angular distribution of energy received by ionospheric forward scattering at very high frequencies

A theoretical study of sporadic-E structure in the light of radio measurements.

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