位置偏差信号
In the case of a real arc current with great disturbance, the filter and the optimized judgement of position error signal of torch to the welding bead were studied in detail, which aimed at improving the sensitivity, stability and reliablity of the arc sensor.
着重研究了对于干扰严重的实际电流波形如何进行滤波,以及判断焊炬焊缝横向高低偏差的最佳信息处理方法以提高灵敏度可靠性与稳定性。
The idiographic behave is that after certain distance propagation, the signal strength of sky wave will exceed the strength of ground wave apparently, it makes the receiver lock on the sky wave by error and the positioning result will deviate from the actual position.
其具体表现为:在传播一定距离后,天波信号强度远大于地波,导致接收机错误的锁定在天波上,使系统解算结果偏离实际载体位置。
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