【摘要】 针对机载地磁测量易受发动机干扰的问题,提出将干扰分为动态、静态2种情况处理。首先进行静态补偿,然后针对匀速运动的机载地磁测量,提出了等效电流补偿方法,最后引入卡尔曼数字滤波,消除发动机动态运转产生的高频磁干扰。上述方法能在电机的运行过程中测量出相对实时的、准确的地磁值,减小了电机的磁场干扰,具有很强的实用价值。更多还原

【Abstract】 Using static and dynamic method to handling the interference provided by engine for airborne geomagnetic survey.At first,implement the static compensation,then propose the equivalent current compensation method for the uniform motion of the airborne magnetic measurements,and finally,remove the high frequency magnetic interference of engine by Kalman filtering.These method mentioned above has practical value,it can measured the real-time,accurate geomagnetic values while motor’s running,reducing the motor’s magnetic field interference.更多还原