Method of performing indoor positioning in gnss system and apparatus for supporting the method
AssigneeElectronics and Telecommunications Research Institute
InventorsSEONGHUN SEO, Yonghyun Kim
Life of this patent
Estimating the term…
Abstract
A composite signal transmission apparatus for performing indoor positioning in a global navigation satellite system (GNSS) system is provided. The composite signal transmission apparatus includes a controller configured to receive a satellite signal through an antenna from a GNSS satellite and analyze an orbit of the GNSS satellite and a status of the satellite signal, based on the received satellite signal, a GNSS transmitter configured to generate a pseudo-GNSS signal by using the received satellite signal and transmit the generated pseudo-GNSS signal, and an ultra-wideband (UWB) transmitter configured to generate a UWB signal and transmit the generated UWB signal.
Claims16
A composite signal transmission apparatus for performing indoor positioning in a global navigation satellite system (GNSS) system, the composite signal transmission apparatus comprising:
- a controller configured to receive a satellite signal through an antenna from a GNSS satellite and analyze an orbit of the GNSS satellite and a status of the satellite signal, based on the received satellite signal;
- a GNSS transmitter configured to generate a pseudo-GNSS signal by using the received satellite signal and transmit the generated pseudo-GNSS signal;
- and
- an ultra-wideband (UWB) transmitter configured to generate a UWB signal and transmit the generated UWB signal.
A composite signal reception apparatus for performing indoor positioning in a global navigation satellite system (GNSS) system, the composite signal reception apparatus comprising:
- a GNSS receiver configured to receive, through an antenna, a pseudo-GNSS signal transmitted from a composite signal transmission apparatus and calculate a GNSS satellite-based GNSS pseudo range through signal acquisition and a tracking loop for each channel;
- an ultra-wideband (UWB) receiver configured to receive, through the antenna, a UWB signal transmitted from the composite signal transmission apparatus and calculate a range between the composite signal transmission apparatus and the composite signal reception apparatus through transmission/reception switching and two-way ranging for each channel;
- and
- a controller functionally connected to the GNSS receiver and the UWB receiver,
- wherein the controller controls the UWB receiver to provide the tracking loop of the GNSS receiver with range information about the range calculated by the UWB receiver.
A global navigation satellite system (GNSS) system for performing indoor positioning by using a GNSS signal and an ultra-wideband (UWB) signal, the GNSS system comprising:
- a composite signal transmission apparatus configured to analyze an orbit of a GNSS satellite and a status of a satellite signal received from the GNSS satellite, based on the received satellite signal, generate and transmit a pseudo-GNSS signal by using the received satellite signal, and generate and transmit a UWB signal;
- and
- a composite signal reception apparatus configured to receive a pseudo-GNSS signal transmitted from the composite signal transmission apparatus to calculate a GNSS satellite-based GNSS pseudo range through signal acquisition and a tracking loop for each channel and receive a UWB signal transmitted from the composite signal transmission apparatus to calculate a range to the composite signal transmission apparatus through transmission/reception switching and two-way ranging for each channel.
Dependencies are inferred from the claim text.