The application of convolutional codes to the high frequency channel.
McCrumb, James Brayton
Geist, John M.
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The HF channel is characterized with regard to frequency selective fading and atmospheric noise under restrictive mathematical assumptions, and compared with measured statistics. Actual channel characteristics are utilized to obtain parameters for choosing appropriate convolutional codes. Short threshold decodable convolutional codes with only a moderate amount of interleaving are shown to be capable of affecting a reduction in the output error probability by at least an order of magnitude, for uncoded error probabilities on the order of 2 x 10ˉ².
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