• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 72
  • 15
  • 3
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 106
  • 106
  • 21
  • 21
  • 20
  • 16
  • 13
  • 11
  • 10
  • 9
  • 8
  • 8
  • 7
  • 6
  • 6
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Studies of ionospheric drift using a large aerial array.

Felgate, David Gordon. January 1969 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Physics, 1970.
2

An investigation of radio-wave scattering in the interplanetary medium /

Ward, Bruce Donald. January 1975 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Physics, 1976.
3

Scattering of radio waves by rectangular cylinders

Mei, Kenneth Kwan-hsiang, January 1962 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1962. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
4

Wave propagation on lossless nonlinear transmission lines exhibiting dispersion

Prasanna, Belur N., January 1966 (has links)
Thesis (Ph. D.)--University of Wisconsin, 1966. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
5

Quantization noise of signal correlators.

Klingler, Rolf Jerg January 1972 (has links)
In radio-astronomy, spectra of noisy signals are often computed using digital auto-correlation techniques. To simplify the design of the many high-speed multipliers and averagers, coarse quantization is employed, using only a few digital levels. This thesis is a theoretical study of the penalty paid for such coarse quantization in the form of increased output noise. A degradation factor is defined and is calculated for a variety of logic schemes which have been used or proposed. For each scheme, results are given as a function of sampling rate and it is demonstrated that there is often significant improvement in sampling at rates faster than the Nyquist rate. A computer simulation technique was developed for verifying the computed results, and for extending the results to complicated schemes where analysis is very difficult. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate
6

Electron content and other related studies of the ionosphere using theFaraday rotation of a radio signal from a geostationary satellite

Ting, Sui-din., 丁垂典. January 1969 (has links)
published_or_final_version / Physics / Doctoral / Doctor of Philosophy
7

Frequency and polarization diversity simulations for Urban UAV communication and data links

Pala, Fatih. 09 1900 (has links)
Approved for public release, distribution is unlimited / The purpose of this research was to examine the effects of frequency, and polarization on radio wave propagation in urbanized areas for unmanned aerial vehicle (UAV) data links, and command and control. The transmission from a UAV operating over a small city was simulated using the Urbana Wireless Toolset. Parameters that were varied include frequency, antenna polarization, UAV altitude, and building materials. Multiple reflections and diffractions were included in the simulation. In each case signal contours were generated at discrete frequencies over a 50 MHz bandwidth. It was observed that the signal levels varied up to over the bands at a fixed observation point due to frequency-dependent reflection and diffraction. / 1st Lieutenant, Turkish Air Force
8

Electron content and other related studies of the ionosphere using the Faraday rotation of a radio signal from a geostationary satellite.

Ting, Sui-din. January 1969 (has links)
Thesis--Ph. D., University of Hong Kong. / Mimeographed.
9

The influence of meteor radiant distributions on radio-echo rates

James, Jesse Clopton 05 1900 (has links)
No description available.
10

Alternative waveforms for radar applications /

Durbridge, Lyndon J. Unknown Date (has links)
Thesis (MEng)--University of South Australia, 2000

Page generated in 0.0555 seconds