8th International Conference on High-Frequency Radio Systems and Techniques

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  • Location: Guildford, UK
  • Conference date: 10-13 July 2000
  • ISBN: 0 85296 727 6
  • Conference number: CP474
  • The following topics were dealt with: HF radio links and networks; future systems; waveforms and modems; antennas and couplers; radar and direction finding; HF radio propagation measurements and prediction; transmitters and receivers; HF NVIS propagation; channel modelling and simulation; noise and interference; solar eclipse effects

72 items found

  • TRILION project: transmission of images through the ionosphere
  • Equalisation of HF channels using the SFAEST algorithm
  • Performance testing of MIL-STD-188-110B high data rate HF waveforms
  • Performance testing of STANAG 5065 LF waveforms
  • Source separation in the HF band using a compact system of direction finding
  • A fast, efficient approach to implementing SRDF techniques
  • Design of a HF compact direction finding system based on colocated antennas
  • ATM interface for HF channel
  • Superresolution direction finding at HF for signals of unknown polarization
  • Investigation and analysis of topology in automated HF radio networks
  • Performance of US MIL-STD-188-141B appendix C data link protocols
  • An adaption of STANAG 5066 for automatic power control on HF links
  • Cross code validation between NEC 4 and TLM for a 10-metre whip monopole
  • Comparison of the predicted performance of typical HF and VHF Yagi-Uda antennas with the theoretical limit of all their elements being driven
  • Frequency agile antenna tuning and matching
  • Propagation models for HF radio service planning
  • The evolution of an ionospheric forecasting service
  • HF radio propagation at high latitudes under quiet and disturbed geomagnetic conditions
  • Reliable vocoder data transmission over fading HF channels
  • Directions of arrival at three frequencies on a propagation path along the mid-latitude trough: a comparison of observations with ray tracing simulations
  • STUDIO father of NOSTRADAMUS. Some considerations on the limits of detection possibilities of HF radars
  • Evaluation of multiple WRF-HF-FMCW radar waveform
  • Waveform parameter advice: a clutter evaluation tool for high frequency surface wave radar
  • The detection and tracking of small fast boats using HF Surface Wave Radar
  • Near vertical incidence skywaves in world war II: an historical perspective
  • Some experiences of frequency use in an adaptive HF network
  • The Alexanderson alternator of Grimeton Radio, Sweden
  • A comparison of methods for the measurement of ionospheric tilt from a topside ionospheric sounder
  • Design and performance of a system for the derivation and analysis of HF channel state data
  • Observations of the directional characteristics of obliquely propagating HF radio signals and simultaneous HF radar measurements
  • A high performance HF software radio
  • High performance reconfigurable digital signal processing for the time varying channel
  • An assessment of the propagation characteristics of the HF NVIS channel
  • Channel characteristics of HF NVIS paths in northern Scandinavia
  • Meteor burst communications via back scatter propagation
  • An analysis of HF for IP sub-networks
  • New ARQ based on code combining applicable to HF channels
  • Joint equalization and channel coding for channels with multipath propagation
  • Interconnected communication networks
  • On the design of a voiceband HF replay channel simulator
  • Concept of a versatile HF transmission system and its embedding into simulation environments
  • Wideband channel characteristics and short spread-spectrum HF links
  • Shortwave software modem, 14400 BPS in 3 kHz
  • 16 kbps modems for the HF NVIS channel
  • The evolution of a 64 kbps HF data modem
  • The implications and applicability of a QAM high data rate modem
  • Loop antennas in the 3-30 MHz band
  • Performance characteristics of high data rate HF waveforms
  • Scattering functions for wideband HF channels
  • Characterisation of scattering functions by the new concept of complex multi-fractal
  • Requirements for future models and simulators of the HF transmission channel
  • Experimental study of the spatial dynamics of environmental noise for a surface-wave OTHR application
  • The directionality of atmospheric noise and its impact upon an HF receiving system
  • Aspects of HF spectral occupancy
  • Undirectional tuned loop antennas using combined loop and dipole modes
  • Prediction and measurement of HF radiated emissions from communication networks that use unscreened cables
  • The EM environment and xDSL
  • The threat to new radio systems from distributed wired-communication installations
  • VLF-LF propagation measurements during the 11 August 1999 solar eclipse
  • Ionospheric phenomenons created by the solar eclipse of 11 August 1999 from Canada to Indies
  • An optimised vehicular loop antenna for NVIS applications
  • HF 125 W half-loop antennas in ALE and ECCM for land mobile, navy and helicopter use
  • COFDM modem for terrestrial radio broadcasting
  • MC-CDM - a promising approach for digital broadcast in the AM-band
  • Improved channel estimation and demodulation for OFDM on HF ionospheric channels
  • Image coding and ionospheric link
  • Circular to linear array mapping using calibration data
  • The modeling of the HF signal structure in the vicinity of the maximum usable frequency of a randomly-inhomogeneous ionosphere
  • Use of the SCIPION ionospheric sounder for different kinds of applications
  • From the sun to the modem - an integrated approach to HF system performance analysis
  • Advanced use of LQA data in improving the quality and the speed of ALE link establishment while reducing sounding requirements in HF networks
  • Neural network processor based on SAW device for digital modulation recognition
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