Detection and repair of cycle slips with BDS dual frequency combination

Detection and repair of cycle slips is the prerequisite for high precision positioning. This paper proposes a method uses modified MW combination and ionospheric combination. The multipath of MW combination is filtered and then the ionospheric combination is used. This method is able to detect small cycle slips and various combinations of cycle slips. This paper takes experiment on three kinds of satellites, the result shows that within 15s observation interval, the modified method is able to detect and repair all the cycle slips.