基于Goertzel算法的选择呼叫译码电路设计

Design of selective call decoder circuit based on Goertzel algorithm

针对民用航空器维修培训中,机载选择呼叫系统在设备和场所受到严重限制的问题,研制了基于Goertzel算法的选择呼叫译码电路。对于特定的16种选呼代码,提出了采用改进的Goertzel算法来获取特定的频率点,算法运行可靠性高,解码误码率低;设备供电电压低,操作方便。测试结果表明,该设备可以有效地对飞机的选呼代码进行自动识别,稳定性高,造价低廉,具有较高的可行性。

A selective call decoder circuit is developed based on Goertzel algorithm.It gives a good solution to limits of equipments and location in civil aircraft maintenance training.The improved Goertzel algorithm is proposed to decode the specified sixteen selective call codes of the airplane automatically.The algorithm exhibits good performance in high reliability and stability,in terms of call probability.This equipment is convenient and inexpensive,but great feasibility in application.