抗干扰调谐器阻抗检测的研发

Research on Impedance Test of Anti-interference Tuner

由于电磁环境越来越恶劣，天调必须能在很强的外部电磁干扰的条件下正常调谐和工作。在有很强的外部干扰信号时，天调调谐过程中检测的电压电流取样信号的精确度直接影响调谐的结果。因此要尽量提高检测的精度，去除外部的射频干扰，保证天调在有很强的外部干扰信号时能够检测电路正常工作，计算出准确的阻抗值，为天调调谐提供准确的依据，最终实现天调在强干扰的条件下正常调谐、正常工作。

Due to the worse electromagnetic environment, antenna tuner must be work well under strong electromagnetic interference. The precision of voltage ＆ current sample signal to be tested in the tuning process will directly affect the tuning result while strong interference signal exists. Therefore, it is quite necessary to improve the test precision, eliminate ex- ternal RF interference, and ensure the normal work of antenna tuner under strong external interference environment. Thus, the correct impedance value can be calculated so as to provide a basis for antenna tuner.