Reconstruction method and device for multi-carrier differential chaos shift keying (DCSK) signal

A reconstruction device for a multi-carrier DCSK signal, comprising:

• an information bit acquisition unit;
• a signal modulation unit;
• an original information-bearing matrix generating unit;
• an information-bearing matrix reconstruction unit;
• and
• a transmission symbol generating unit;
• wherein the information bit acquisition unit is configured for acquiring an information bit sequence to be transmitted;
• the signal modulation unit is configured for processing the information bit sequence by serial-to-parallel conversion, and inputting a processed information bit sequence into a modulator for modulation to obtain a modulated signal matrix;
• the original information-bearing matrix generating unit is configured for performing cross multiplication on the modulated signal matrix and a chaotic signal to obtain an original information-bearing matrix;
• the information-bearing matrix reconstruction unit is configured for reconstructing the original information-bearing matrix according to a predetermined reconstruction matrix to obtain an information-bearing reconstruction matrix;
• and
• the transmission symbol generating unit is configured for generating a transmission symbol according to the information-bearing reconstruction matrix and a reference signal matrix in combination with frame structure information of the transmission symbol, and sending the transmission symbol to a receiving end via a wireless network to enable the receiving end to demodulate a received signal according to the predetermined reconstruction matrix.