Systems and methods for a code carrier divergence high-pass filter monitor
US10215862B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2014 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Mar 26, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/07
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for a code carrier divergence (CCD) high-pass filter monitor are provided. In one embodiment, a signal deformation monitor for a GNSS ground based augmentation station, the monitor comprising: a CCD monitor stage communicatively coupled to a plurality of GNSS reference receivers, wherein the CCD monitor stage inputs raw pseudorange code measurements and accumulated delta range carrier measurements from each of the plurality of GNSS reference receivers; and a Code Carrier Divergence -High Pass Filer (CCD-HPF) monitor stage communicatively coupled to the CCD monitor stage, wherein the CCD-HPF monitor processes each of a plurality of low-pass filtered divergence rate measurements, d2produced by the CCD monitor stage through a high-pass filter to calculate an averaged CCD-HPF monitor divergence rate, d3_Average; wherein the signal deformation monitor outputs an exclusion signal associated with a GNSS satellite when the averaged CCD-HPF monitor divergence rate, d3_Averageexceeds an exclusion threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.