What is GNSS and how does it work?

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We wanted to explain what GNSS, GPS and similar terms are and how they work with some examples. When the processes used to measure this system are examined, what GNSS means can be revealed.

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The answer to the question of what GNSS is and how it works can be given as navigation satellite systems. GNSS stands for Global Navigation Satellite Systems. Through GNSS, the location is found using the space backcasting method. The satellite and receiver distance is found by multiplying the time it takes for the signal to reach the receiver by the speed of light. As a result, the satellite and receiver distance turns into a position vector. With this measurement, the user's location is found wherever he is. GNSS; It consists of systems such as GPS, GALILEO, GLONASS, COMPASS, QZSS.What does GNSS mean?Let's examine the examples…

Strengths of GNSS compared to measurement method

GNSS has some advantages over other measurement methods.

It is possible to talk about these superior aspects as follows:

  • The points do not have to see each other.
  • Point installation is done in every region where it is needed.
  • Whether or not measurements are made does not depend on weather conditions.
  • Measurements can be made continuously, that is, day and night.
  • It is an economically suitable system.
  • Provides real-time location, speed and time information.

Thanks to these features, GNSS has left many measurement methods behind.

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Weaknesses of GNSS compared to other measurement methods

GNSS has both strengths and weaknesses compared to other measurement methods.

The weaknesses of GNSS are as follows:

  • The receiving antenna must also see the clear sky.
  • GNSS signals are not very strong. Therefore, it is not used in closed areas and wooded areas.
  • When these features are improved, the GNSS system will reach a more preferable level.

What is GNSS and how does it work?

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