Qualcomm incorporated (20240319385). PRECISE POSITIONING USING DIFFERENTIAL CARRIER PHASE (DCP)-BASED MEASUREMENT UPDATES simplified abstract
Contents
PRECISE POSITIONING USING DIFFERENTIAL CARRIER PHASE (DCP)-BASED MEASUREMENT UPDATES
Organization Name
Inventor(s)
James Stephen of Lake Forest CA (US)
Yinghua Yang of San Jose CA (US)
Yuxiang Peng of Sunnyvale CA (US)
Furqan Ahmed of Eastvale CA (US)
PRECISE POSITIONING USING DIFFERENTIAL CARRIER PHASE (DCP)-BASED MEASUREMENT UPDATES - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240319385 titled 'PRECISE POSITIONING USING DIFFERENTIAL CARRIER PHASE (DCP)-BASED MEASUREMENT UPDATES
Simplified Explanation: The patent application discusses techniques for precise positioning using differential carrier phase (DCP) based measurement updates. This involves utilizing global navigation satellite system (GNSS) signals to generate accurate position, velocity, and time observations for a mobile device.
Key Features and Innovation:
- Obtaining pseudorange and carrier phase observations for a positioning epoch based on GNSS signals.
- Generating a differential carrier phase observation when real-time kinematic (RTK) correction data is unavailable.
- Producing a position, velocity, and time (PVT) observation for the mobile device based on the differential carrier phase observation.
Potential Applications: This technology can be applied in various industries such as surveying, mapping, autonomous vehicles, and precision agriculture.
Problems Solved: The technology addresses the challenge of achieving precise positioning in real-time when RTK correction data is not accessible.
Benefits:
- Enhanced accuracy in determining the position, velocity, and time of a mobile device.
- Improved reliability of GNSS-based positioning systems.
- Increased efficiency in applications requiring precise location information.
Commercial Applications: The technology can be utilized in industries such as construction, transportation, geospatial mapping, and emergency services for accurate and reliable positioning.
Questions about Differential Carrier Phase (DCP) Technology: 1. How does the differential carrier phase observation improve the accuracy of positioning in GNSS systems? 2. What are the potential limitations of using differential carrier phase measurements for precise positioning?
Original Abstract Submitted
techniques for precise positioning using differential carrier phase (dcp)-based measurement updates are disclosed. the techniques can include obtaining a pseudorange observation for a positioning epoch and a carrier phase observation for the positioning epoch based on measurements of global navigation satellite system (gnss) signals transmitted by one or more space vehicles (svs) of a gnss constellation, generating a differential carrier phase observation for the positioning epoch based on the carrier phase observation for the positioning epoch and a determination that real-time kinematic (rtk) correction data associated with the gnss constellation is unavailable, and generating a position, velocity, and time (pvt) observation of the mobile device for the positioning epoch based on the differential carrier phase observation for the positioning epoch.
