Abstract: The HF waveforms which are defined by the US MIL-STD-188-1100 were introduced,also the model structure and the channel impulse response calculation method of the II}S wideband HF channel. I}his paper simulated and compared the results of the bit error rate curves of wideband waveforms transmitting in Wattcrson channel and ITS wideband HF channel for the first time, providing theoretic foundation in some degree on HF wideband communication research.

Key words: MIL-STD-188-1100, HF waveforms, ITS channel