基于混沌Hamilton振子的QAM接收机设计与实现

Research on design and implementation of QAM receiver based on chaos Hamilton oscillator

引入时空混沌Hamilton振子,该振子具有呈平面多吸引子分布,且吸引子之间的轨迹互不干扰.为实现基于混沌Hamilton振子的多进制数字通信,引用区域分割思想.根据初值映射方法,提出了多进制数字信息的混沌调制系统和解调系统的理论模型.设计了混沌Hamilton振子QAM接收机,并为验证该接收机的性能设计了QAM发射机.整个混沌Hamilton振子通信系统主要由基带调制、射频调制、天线、射频解调、区域分割解调等单元组成.硬件采用FPGA开发平台完成调制、解调算法,软件采用Verilog语言进行编程.完成基于混沌的Hamilton振子的发射机和接收机系统硬件设计,并对设计的结果、性能进行验证.

The spatiotemporal chaos Hamilton oscillator was introduced in this paper, which has planar multiple attractors distribution, and the attractor trajectories between each other. For the realization of the multi - band digital communication based on chaos Hamilton oscil- lator, ideas of regional segmentation were introduced. The multi - band digital information theory model of the chaotic modulation and demodulation system was put forward based on the initial value mapping method. The Hamilton chaos oscillator QAM receiver was de- signed, and to test and verify the performance of the receiver QAM transmitter was also de- signed. The chaotic communication system consists of baseband modulation, RF modulation, antennas, RF demodulation and regional segmentation demodulation unit. Modulation and demodulation algorithms were implemented on FPGA, while Verilog was used as the pro- gramming language. The transmitter and receiver system hardware design were finished based on chaotic Hamilton oscillator, and results and performance of the design were validated.