利用DPSK调制的混沌通信

Subcarrier modulation in chaotic communication was simulated. It is benefited to modulate message with differential phase shift keying (DPSK), that the performance of the communication system and message-hide efficiency could be improved obviously. With Frequency Division Multiplexing applied, the total transmission speed increased, when the decoding efficiency was not influenced. When communication frequency was close to the relaxation oscillation frequency of the laser diode, the decoding performance would decrease.