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

Figure 6

Feature fusion recognition performance of different numbers of receivers: (a) the accuracy change curve of a single receiver and different numbers of receivers under cooperative recognition at -14-14 dB and (b) the effect of cooperative recognition by 7 receivers under -4 dB.

(a) Recognition results under different SNRs

(b) 7 receivers cooperatively identify confusion matrix under -4 dB