Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Terence J. Elkins"'
Publikováno v:
SPIE Proceedings.
The performance of optimum minefield detection tests for unpatterned minefields is determined in this paper. A replacement model for an unpatterned (scatterable) minefield is defined. The log-likelihood ratio for minefield detection is then derived f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd166e1ad68996cbc9f47908c67cb870
https://doi.org/10.1117/12.211350
https://doi.org/10.1117/12.211350
Publikováno v:
Journal of Geophysical Research. 74:4105-4115
A study of the power density spectrum of ionospheric scintillation of a radio star and satellites, at a subauroral location, has revealed the following: (1) Scintillations generally display a ‘pink’ noise spectrum, with almost uniform spectral de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a073653cbb1ac92b31724c279745928
https://doi.org/10.1029/ja074i016p04105
https://doi.org/10.1029/ja074i016p04105
Publikováno v:
Journal of Geophysical Research. 72:2891-2902
The amplitude scintillations of the radio flux from Cygnus and Cassiopeia have been studied at discrete frequencies in the VHF-UHF range (30, 63, 113, 228, and 400 Mhz) using a 150-foot and an 84-foot diameter steerable paraboloids, both independentl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31c75d92bc7a37481faffdc89edaee36
https://doi.org/10.1029/jz072i011p02891
https://doi.org/10.1029/jz072i011p02891
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 32:383-395
Cross correlation functions for satellite scintillations at spaced receivers, show a systematic skewness, indicative of dispersive motions of ionospheric irregularities. Other features of the correlation functions, such as secondary pumps frequently
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72932b05d342a6429748dda82227a732
https://doi.org/10.1016/0021-9169(70)90010-3
https://doi.org/10.1016/0021-9169(70)90010-3
Autor:
Terence J. Elkins
Publikováno v:
Radio Science. 1:1195-1200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b82db69c40750c23903d3fea2ff446d
https://doi.org/10.1002/rds19661101195
https://doi.org/10.1002/rds19661101195
Autor:
Terence J. Elkins, F.F. Slack
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 31:421-439
Observations, at a sub-auroral zone site, of transmissions from certain geo-stationary satellites, have revealed an unusual regular type of fading, apparently due to diffraction from moving ionospheric formations. The velocity of movement of these el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eac874ede44a449060090ac9e0b07566
https://doi.org/10.1016/0021-9169(69)90067-1
https://doi.org/10.1016/0021-9169(69)90067-1
Autor:
Samuel Horowitz, Terence J Elkins
The change in apparent range between an L-Band Radar System and a high flying target introduced by a traveling ionospheric disturbance (TID) is calculated. Using an ambient Chapman electron density profile perturbated by a realistic TID model, the ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbd1a6cc0bd6e31b9e976c06e977a0d9
https://doi.org/10.21236/adb006808
https://doi.org/10.21236/adb006808
Results of an ionospheric radio propagation experiment are discussed which involved high-frequency ionospheric radars located in California, New York, and Australia, with their radiation aimed toward an artificially modified volume of the ionospheric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe0b07b615c92c69ca697716bfda1f82
https://doi.org/10.21236/ada098944
https://doi.org/10.21236/ada098944
Autor:
Terence J. Elkins
A simplified analysis was performed as a preliminary to a more elaborate analysis of data from an FM/CW backscatter sounder experiment known as RECAP in the polar winter ionosphere. The results show that a reasonably accurate simulation of ionogram d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bdb5edf0c07c30e16e058f99e1692c9
https://doi.org/10.21236/ada003346
https://doi.org/10.21236/ada003346