The text puts forward Weak Interference of Displacements of Cable .

提出了主缆位移的弱相干的观点。

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Result This method had a simple algorithm, fast processing speed and good result of filtering both strong and weak interference.

结果该方法算法简单，处理速度快，对强、弱噪声滤波效果都较好。

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But for weak interference, because the null formed by power inversion array is shallow, the performance for suppression of interference is poor.

但对于弱干扰源的情况，该算法形成的零陷不够深，对干扰的抑制有限。

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Because they rely on signals from satellites transmitting from an altitude of around 20, 000 kilometres (12, 400 miles), the signals are very weak, making them vulnerable to accidental or deliberate interference.

ECONOMIST: GPS jamming