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Brief description of the detection of interference in a signal of radio - navigation satellite based on the supervision of a coefficient of correlation time
Brief description of the detection of interference in a signal of radio - navigation satellite based on the supervision of a coefficient of correlation time
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机译:基于相关时间系数监督的无线电导航卫星信号干扰检测方法简介。
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摘要
Method of detecting interference in a satellite radio-navigation signal determines the temporal position for which the correlation between the signal and a local spreading code offset by the position is maximum, calculating an information item representative of the intercorrelation between a first measurement of the correlation of the signal with a local spreading code at a first temporal position advanced relative to the temporal position of the maximum by a duration greater than the duration of a slot of the spreading code and a second measurement of the correlation of the signal with a local spreading code at a second temporal position delayed relative to the temporal position of the maximum by a duration greater than the duration of a slot of the spreading code, and comparing the item with a detection threshold configured at least as a function of the ratio of the powers of the signal and of the interference.
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