中频遥测OOK信号解调的设计实现

The Design of OOK Demodulation

开关键控调幅体制(OOK)信号为开关键控的调幅信号,利用在不同位置上的通断传递不同的信息,对脉冲位置的精确度将决定最终的解调误码率。根据遥测中频OOK信号的解调原理,介绍了OOK解调的理论架构和实现方法。通过理论分析、公式推导和matlab仿真等手段证明了方法的正确性,在此基础上完成VHDL程序设计,进行了仿真测试和实验验证,仿真结果和实验结果证明了该实现方法的可行性。

OOK means on-off keying,in which on/off states at different positions are used to deliver different meaning.The precision of pulse position will determine the final bit error rate in the demodulation.The method of OOK demodulation is given according to the characteristic of OOK signal.Theoretical analysis,formula deduction and matlab simulation confirm the correctness of this OOK demodulation method.The VHDL code is designed according to the mathematical model.Through simulation and experimentation,the results are given at the end of this paper.Both of them prove the feasibility of this implementation approach.