The time-delay spread for a high frequency ionospheric channel is a very important factor affecting the bit-error rate of a data HF communication system. The parameter K, the ratio of the operating frequency to the ba...The time-delay spread for a high frequency ionospheric channel is a very important factor affecting the bit-error rate of a data HF communication system. The parameter K, the ratio of the operating frequency to the basic maximum usable frequency, can be used for describing the variation of the time-delay spread for an HF channel.展开更多
文摘The time-delay spread for a high frequency ionospheric channel is a very important factor affecting the bit-error rate of a data HF communication system. The parameter K, the ratio of the operating frequency to the basic maximum usable frequency, can be used for describing the variation of the time-delay spread for an HF channel.
