Real-Time Multisignal Detection and Identification in Known and Unknown HF Channels: A Deep Learning Method

Figure 1

The time-frequency information of under AWGN channels. (a) The time sequence of . (b) The frequency spectrum and label of . (c) with =40 ms and Hz. (d) with =10 ms and Hz. (e) with =5 ms and Hz. (f) with =2.5 ms and Hz.

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