APPARATUS AND METHOD FOR CYCLE SLIP DETECTION OF GNSS CARRIER PHASE
The present invention relates to a cycle slip detecting device and a method thereof. According to an embodiment, the cycle slip detecting device comprises: a carrier wave measured value calculating unit; a measured value determining unit; and a cycle slip determining unit. The carrier wave measured...
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Zusammenfassung: | The present invention relates to a cycle slip detecting device and a method thereof. According to an embodiment, the cycle slip detecting device comprises: a carrier wave measured value calculating unit; a measured value determining unit; and a cycle slip determining unit. The carrier wave measured value calculating unit calculates a carrier wave measured value corresponding to at least one satellite among a plurality of satellites. The measured value determining unit determines whether the calculated carrier wave measured value is a single frequency measured value. When a result of determining the measured value is the single frequency measured value, the cycle slip determining unit applies a butterworth filtering-based detecting method to the calculated carrier wave measured value. When the result of determining the measured value is not the single frequency measured value, the cycle slip determining unit determines whether a cycle slip occurs based on a result of applying a detecting method by applying a geometry-free combination (GFC)-based detecting method to the calculated carrier wave measured value. The present invention can improve a performance of detecting the cycle slip.
본 발명은 사이클 슬립 검출장치 및 그 방법에 관한 것으로서, 일실시예에 따른 사이클 슬립 검출장치는 복수의 위성 중 적어도 하나의 위성에 대응되는 반송파 측정치를 산출하는 반송파 측정치 산출부와, 산출된 반송파 측정치의 단일 주파수 측정치 여부를 판단하는 측정치 판단부 및 측정치 여부의 판단 결과가 단일 주파수 측정치인 것으로 나타나면 산출된 반송파 측정치에 버터워스(Butterworth) 필터링 기반의 검출 기법을 적용하고, 측정치 여부의 판단 결과가 단일 주파수 측정치가 아닌 것으로 나타나면 산출된 반송파 측정치에 GFC(Geometry-Free Combination) 기반의 검출 기법을 적용하며, 검출 기법의 적용 결과에 기초하여 사이클 슬립의 발생 여부를 판단하는 사이클 슬립 판단부를 포함한다. |
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