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Welcome to GNSS Smart
Where we provide products and navigation services for aviation, space, rails and roads.
Are you from the majority of people who consider GPS is the only available network? Well, that’s not the case! We provide powerful GNSS (Global Navigation Satellite System) that holds a bunch of strong navigation networks.
Do you want to know what GNSS Systems are?
For common networking and configuration, GPS is known as a satellite-based radio navigation system. On one side where GPS is recognized for navigation, GNSS Systems are more updated versions of GPS that works on the Aerospace. From networking to navigation, GNSS is a very powerful satellite system.
Wonder what power it holds?
As a global navigation satellite system (GNSS), it is a group of synchronized satellites working collectively in a circular motion. This bunch of satellites circulating together is also referred to as constellations which are used for Position Navigation and Time (PNT) solutions on a global basis. The PNT systems consist of many constellations of satellites that transmit frequent radio signals to fuel networking. These main constellations collide to form Beidou (China), Glonass (Russia), Galileo (EU), and Global Positioning System (USA).
The PNT systems are fully associated with the GNSS that is used for a wide and growing variety of applications that we use on a routine basis. From local navigation to aviation, maritime, bullet trains and vehicles on the road, everything is managed by the advance GNSS. Even the timing synchronization for electrical and communication networks, surveying, mining, construction, agriculture, and Location Based Services (LBS) are possible due to GNSS.
Want To Know How GNSS Systems Works? Well here is what you need to know!
The highly updated GNSS satellites not only transmit networks for navigation but they are effectively used to convey data about the location or position. They also support atomic clocks that track the exact timing when each signal was sent.
The moment GNSS receivers track down the signals from multiple satellites, they use it for trilateration which is a process of position the main signal to its axis. The signals collected from atomic clocks are very powerful as they collide with the GNSS receivers. The moment it strikes the satellite, the system drives the ability to receive it from a long distance (from at least four GNSS satellites away). That’s why these satellite systems have more precision.
GNSS systems in China and Hong Kong
Last year China launched around 35 satellites as compared to the GPS (US). Being the biggest supplier of navigation satellites, the GNSS industry in China and Hong Kong is rapidly growing due to their geographical location. It is one of those thriving countries for launching updated networking satellites.
To support the networking satellite systems, a smart technique is used which is known as the Inertial Navigation System (INS). Before jumping on to the explanation of INS, it's better if you know about a few systems that are linked to the Inertial Navigation Systems.
An accelerometer is used to measure acceleration which is relative to the free-fall attraction, the acceleration felt by people and objects. It also calculates the acceleration at any point in space-time that guarantees the existence of a local inertial frame.
It is a sensor system that detects and measures the activity and angular rotation of an object on the space. However, the object should possess an inertial reference frame. Without any resistance, reference signal or external infrastructure, it is not possible for the Gyroscope to detect any activity.
To provide strong resistance, a magnetometer has measuring sensors that are used to measure the strength or direction of magnetic fields. Once you know the role of these systems, it’ll become easier for you to understand an Inertial Navigation System.
What Is An Inertial Navigation System?
It is a self-contained navigation technique that is used to support satellite systems. The Inertial Navigation System uses accelerometers and gyroscopes to track the position and orientation of an object relative to a known starting point. However, the orientation and velocity are strictly measured by the magnetometer.
Inertial Navigation Systems usually provide an accurate solution for a short period. As the acceleration increases, it measures integrates with the system and causes a bias on the estimated velocity and a continuous drift.