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- W2318562437 abstract "A wideband HF channel simulator has being been constructed that is based on a detailed physical model and that can generate an output giving a time realisation of the HF wideband channel for any given transmitter frequency, bandwidth, transmitter receiver path, time of day, month and year and corresponding to any solar activity/geomagnetic conditions. Preliminary results giving pulse distortion and phase and log-level time realizations have been presented for a two-mode 1000 km path for different bandwidths as an example. These show that the effect of time-varying irregularities is quite significant and can be much larger than that resulting from dispersion in the background medium alone. This can results in significant channel degradation for wider bandwidths. It is envisaged that the simulator could be used to test HF systems and candidate HF modem schemes for various applications, e.g. HF broadcasting (DRM) and spread spectrum systems; both direct sequence and frequency hopping. (5 pages)" @default.
- W2318562437 created "2016-06-24" @default.
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- W2318562437 date "2002-01-01" @default.
- W2318562437 modified "2023-09-24" @default.
- W2318562437 title "Simulating the digital hf multipath wideband ionospheric channel" @default.
- W2318562437 doi "https://doi.org/10.1049/ic:20020270" @default.
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