Research on Distributed Multisensor Spectrum Semantic Sensing and Recognition in Internet of Things Environment

Figure 9

Recognition confusion matrix of different receivers under 0 dB. (a) is the recognition effect of receiver 1, receiver 1 is the transmission situation with the worst channel condition, (b) is the recognition effect of receiver 3, and (c) is the recognition effect of receiver 5. Receiver 5 is the best channel transmission situation, and (d) is the effect of collaborative identification by 5 receivers.

(a) Receiver 1

(b) Receiver 3

(c) Receiver 5

(d) 5 receivers fused