Fig. 7: Experimental configuration and measured results of ME-based multi-dimensional wireless security communications with frequency-hopping secure transmission.
From: Meta-encryptor with multi-dimensional security architecture for wireless communications
a Experimental configuration diagram. b Frequency codebook diagram. c Image received and demodulated by Bob with a frequency hopping interval of 55.04 ms. Stripe-like error distortions in the image are caused by the long response time of the signal source. d The variation of the BER of data received by Bob with respect to the frequency switching interval.
