Zobrazeno 1 - 10
of 30
pro vyhledávání: '"J.C. McKeeman"'
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 31:543-554
A slotted multiaccess protocol is proposed for networks of low-Earth orbit store-and-forward communications satellites. Networks of this type would provide communication between low cost geographically distributed Earth stations, and would be particu
Autor:
J.C. McKeeman, A. Safaai-Jazi
Publikováno v:
Journal of Lightwave Technology. 9:959-963
A simple modification is proposed to the dual-core spectral filter design which extends the range of single wavelength transmission considerably, making the filter characteristic nonperiodic in the wavelength range 0.8 mu m >
Autor:
G.M. Ruhlmann, J.C. McKeeman
Publikováno v:
Proceedings. IEEE Energy and Information Technologies in the Southeast'.
The authors describe a program, 3D, which has been developed to display three-dimensional antenna patterns on IBM personal computers and compatibles. With 3D, personal computers are now capable of displaying complex patterns in high-resolution graphi
Publikováno v:
Proceedings. IEEE Energy and Information Technologies in the Southeast'.
The model for an automated guided probe implemented on a IBM personal computer-based system is presented. With the addition of a few interface cards and the appropriate software, a PC can be transformed into a tester capable of driving an X-Y prober.
Publikováno v:
[1989] Proceedings. The Twenty-First Southeastern Symposium on System Theory.
The physical structure of the PC-based guided probe testing system is presented. Major components of the system are shown, and a discussion of their functioning within the system is given. The guided probe algorithm that is used to locate an error is
Publikováno v:
IEEE International Conference on Communications, World Prosperity Through Communications.
The ESA satellite OLYMPUS and the NASA satellite ACTS (Advanced Communications Technology Satellite) both provide opportunities for 12, 20, and 30 GHz propagation and communications experiments. OLYMPUS is scheduled for launch in 1989 and ACTS in 199
Publikováno v:
[1989] Proceedings. The Twenty-First Southeastern Symposium on System Theory.
The authors describe a text-to-phonetic speech algorithm for IBM Personal System/2 computers which allows visually impaired telephone operators to provide directory assistance to telephone subscribers. Prior to this project, each trained operator acc
Autor:
M.B. Moussa, J.C. McKeeman
Publikováno v:
Proceedings of the IEEE 1988 National Aerospace and Electronics Conference.
A neural-network model is presented that uses the frequency content of a signal to store and process information. The model is described theoretically and compared to amplitude-based neural networks. A version of the network is also simulated and its
Publikováno v:
IEEE Proceedings on Southeastcon.
Linear array charge coupled device (CCD) cameras and cylindrical lenses are used to measure motions in one distinct plane without regard to motions in all other planes. A custom pixel-data processing unit is implemented to reduce the amount of data t
Autor:
D.G. Sweeney, J.C. McKeeman
Publikováno v:
[Proceedings] GLOBECOM '90: IEEE Global Telecommunications Conference and Exhibition.
The design of a hybrid analog/digital receiver developed to acquire and monitor the Olympus satellite beacons is presented. The analog portion of this receiver uses a frequency-locked loop for signal tracking. A digital sampling detector operating at