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SYSTEMS AND METHODS FOR GNSS CARRIER PHASE MULTIPATH MITIGATION USING A BLANKED CORRELATOR IN CONJUCTION WITH A FULL CORRELATOR
SYSTEMS AND METHODS FOR GNSS CARRIER PHASE MULTIPATH MITIGATION USING A BLANKED CORRELATOR IN CONJUCTION WITH A FULL CORRELATOR
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机译：用于GNSS载波相位多路径缓解的系统和方法，使用毯子相关器结合完整的相关器
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摘要
Techniques are provided for GNSS carrier phase multipath mitigation using a blanked correlator in conjunction with a full correlator. A tracking loop may track a carrier of the GNSS signal utilizing the full correlator. A chip-edge accumulation (CEA) unit of the tracking loop may accumulate chip edges of a ranging code to generate CEA output. A blanked correlator may receive the CEA output to generate blanked correlator values. A running-sum filter may utilize the blanked correlator values to generate a running-sum value. A phase estimate may utilize the running-sum value to generate phase estimator output. In an exemplary embodiment, the blanked correlator operates as a monitoring correlator and the phases estimator output is the estimated carrier phase multipath error. In an exemplary embodiment, the blanked correlator provides input to the tracking loop and discriminator output is subtracted from the phase estimator output to generate the estimated carrier phase multipath error.
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