Navigation deception jamming detection method based on signal arrival direction angle difference

The invention provides a navigation deception jamming detection method based on a signal arrival direction angle difference, and the method comprises the steps: calculating an observed value of the signal arrival direction angle difference through pseudo-range double difference, and calculating a predicted value of the signal arrival direction angle difference through ephemeris information and positioning information; and finally, consistency inspection is carried out on the angle difference of the arrival directions of the signals to realize detection of deception jamming, so that detection of deception signals with different coming directions from real signals can be effectively realized, whether the deception signals are from the same direction is not limited, the detection performance is more excellent, and the detection accuracy is improved. And the spoofing detection accuracy is greatly improved. 本发明提供一种基于信号到达方向角度差的导航欺骗式干扰检测方法，通过伪距双差计算信号到达方向角度差的观测值，通过星历信息、定位信息计算信号到达方向角度差的预测值，最后对信号的到达方向角度差进行一致性检验实现欺骗干扰的检