差分PSK安控指令解调系统的设计与实现

Design and Implementation of Safety Remote Control Command Demodulation System Based on the Difference PSK Mechanism

针对导弹安全遥控指令系统,提出采用差分PSK的解调体制。基于高速数字处理系统,运用正交相干采样消除副载波信号转变成基带数字信号的设计思想,从全数字化和易于软件实现的角度进行遥控指令解调系统的设计,实现在硬件设备不作任何改动的情况下,通过更换不同的软件完成多种体制全数字安控指令的调制与解调。给出了实现的方法和步骤,通过实验证明了设计的合理性。

The difference-PSK demodulation mechanism is proposed, on accounting of the safety remote control command system of missile. Based on the high speed digital processing system and the technology of quadrate coherent sampling which can eliminate the sub-carrier signal and change it into base band digital signal, the paper gives of the design method of remote control command demodulation system under the thorough digitization and prone to software realization. This method permits the modulation and demodulation of most thorough digitization safety remote control command without restructuring the equipment. Finally, the detailed realization steps are given and its feasibility is validated.