GSN GPS receiver is well suited for the Location Based Services exploiting market. in collaboration with leading DSP provider for the mobile, digital home and networking markets.
The software based receiver presents a revolutionary cost-effective solution, addressing latest trends of miniaturization and low-power consumption.
GSN offers several models of GNSS simulators for testing equipment and GPS receivers with variety of different applications:Single channelMulti-channel.Multi constellationReal-timeVariety of GNSS systemsEnd to endGenerate, record and replay
GSN patented Indoor Navigation solution is aimed at extanding outdoor navigation to close sites, buildings, tunnels and parking lots. Based on a net of micro simulators in target locations: shopping malls, buildings, parking lots, tunnels that create accurate emulation of satellite signals that enables the GPS standard receiver to identify the real location coordination.
GSN is developing an RF transmitter front, supporting all GNSS systems and frequencies. Main features include: Self calibrated, Time synchronization, Self align procedureEliminates multipath related problemsSub-meter accuracyWorks on any existing and future smart phone
GPS, Galileo, GLONASS
both now and
into the future
GNSS or Global Navigation Satellite System is a combination of all existing satellite navigation systems - GPS (USA), GLONASS (Russian), Galileo (European in 2014), COMPASS (China),IRNSS (India), WAAS, EGNOS, MSAS. The last three are only additional to a system, as they are satellites located in geostationary orbit and ensure corrections for significantly lower accuracy.
GNSS, satellites orbits are arranged such that at least four satellites are always visible from any line-of-sight point on earth. Each satellite broadcasts navigation data that includes ephemeris data (precise orbital data for itself) and almanac data (coarse orbit and status information on all satellites). This data is transmitted using a distinct spread-spectrum code, which is unique for each individual satellite (except GLONASS). All GNSS satellites are also equipped with onboard atomic clocks that allow GNSS receivers to perform the precise travel time measurements required for calculating signal travel time.
Using its knowledge of the satellite positions and their codes, the GNSS receiver correlates the incoming GNSS-satellite signals to identify and calculate the signal travel time from each satellite in view. It then calculates the distance to the satellite based on this travel time.
GNSS receivers calculate their position using the signals from at least four GPS satellites. By calculating the distance from these satellites, the GPS receiver is able to solve for four unknowns: longitude, latitude, altitude, and time. Using a principle known as trilateration, to determine its actual location.
Several types of Satellites Base Augmentation Systems - SBAS have been created to improve the accuracy and reliability of the GNSS receiver.
SBAS provide additional information that help the receiver to reduce measurement errors.
NAVSTAR Global Positioning System and GLONASS (Russia) are the only one that are functioning at the moment.
Global Navigation Satellite Systems