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Indoor positioning system based on gps signals and pseudolites with outdoor directional antennas

A GPS antenna, GPS signal technology, used in satellite radio beacon positioning systems, dedicated indoor communications, radio wave measurement systems, etc.

Inactive Publication Date: 2012-11-14
SABANCI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since all these systems are mainly deployed for communication purposes, most of them have disadvantages in terms of positioning accuracy or in terms of coverage

Method used

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  • Indoor positioning system based on gps signals and pseudolites with outdoor directional antennas
  • Indoor positioning system based on gps signals and pseudolites with outdoor directional antennas
  • Indoor positioning system based on gps signals and pseudolites with outdoor directional antennas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] refer to figure 1 , the indoor positioning system (1) includes at least three directional GPS antennas (2a, 2b and 2c) for picking up specific GPS signals from at least three GPS satellites (S1, S4 and S7), for At least three RF GPS repeaters (3a, 3b and 3c) for GPS signal amplification of (2a, 2b and 2c), for indoor transmission of GPS signals from RF GPS repeaters (3a, 3b and 3c) at least three GPS antennas (6a, 6b and 6c), at least one GPS receiver (7) for picking up GPS signals from the GPS antennas (6a, 6b and 6c) via its (7) antenna (8) and for A position calculation method (100) for calculating GPS time and two-dimensionally finding a fix.

[0046] If there are three RF GPS repeaters (3), 2D positioning can be done and GPS time can become available.

[0047] If four RF GPS repeaters (3) are present, 3D positioning can be done and GPS time can become available.

[0048] refer to figure 2 , each RF GPS repeater (3) includes a band-pass filter (4) to reduce th...

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Abstract

This invention comprises at least three directional GPS antennas (2) for picking up specific GPS signals conning from at least three GPS satellites (S), at least three RF GPS repeaters (3) for amplifying GPS signals coming from directional GPS antennas (2), at least three GPS antennas (6) for transmitting GPS signals coming from RF GPS repeaters (3) to indoor, at least one GPS receiver (7) for picking up GPS signals coming from GPS antennas (6) by its (7) antenna (8) novel position calculation method (100) and relates to increase the coverage of the outdoors GPS signals to indoors.

Description

technical field [0001] The present invention relates to an indoor positioning system based on GPS (Global Positioning System) signals for increasing the coverage of outdoor GPS signals to indoors. Background technique [0002] GPS is a radio navigation system that provides accurate and reliable positioning, navigation and timing services freely available to civilians. GPS provides location information and accurate time to anyone with a GPS receiver. GPS provides location and time information at all times anywhere in the world. [0003] The GPS system consists of 24 operational GPS satellites orbiting the Earth twice a day at an altitude of about 20200 km, control and monitoring stations on the network side, and GPS receivers on the user side. GPS satellites transmit RF signals from the air at a frequency of 1575.42 MHz, and GPS receivers pick up these RF signals and down convert them to an intermediate frequency (IF) for correlation and further baseband processing. The lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/11
CPCH01Q1/007G01S19/42H01Q13/02G01S19/11G01S19/115
Inventor I.特金A.博库特K.奥滋索伊
Owner SABANCI UNIVERSITY
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