What is the principle of static positioning measurement?

Static positioning is a method that uses GPS for measurement and calculation to determine the position of the receiver. Its principle is based on "GPS satellite", "receiver observation", "triangulation", "pseudorange measurement", Six key elements of "satellite data processing" and "positioning solution": 1. GPS satellites, which send precise time signals and location information to the ground; 2. The receiver observes multiple satellites at the same time and records their signal strength, arrival Time and other information; 3. Use the principle of triangulation to calculate the position of the receiver, etc.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

Static positioning is a method that utilizes GPS (Global Positioning System) measurements and calculations to determine the location of the receiver. Its principle is based on the following key elements:

1. GPS Satellites:

   The Global Positioning System consists of a group of satellites that orbit the Earth. They send precise time signals and location information to the ground.

2. Receiver observation:

   The GPS receiver performs positioning by receiving signals transmitted by multiple satellites. The receiver observes multiple satellites simultaneously and records their signal strength, arrival time and other information.

3. Triangulation:

   Static positioning uses the principle of triangulation to calculate the position of the receiver. By measuring the distance difference or relative position relationship between the receiver and at least four satellites, the specific position of the receiver can be deduced.

4. Pseudorange measurement:

   The receiver calculates distance by measuring the time difference in the time it takes for a signal to travel from the satellite to the receiver. This measurement is called a pseudorange measurement because the GPS receiver does not measure distance directly, but instead measures the time it takes for the signal to travel.

5. Satellite data processing:

   The receiver transmits the observed satellite signal data to the computing device, and processes the data for data editing, outlier removal, and differentiation Calculation and other operations to obtain more accurate positioning results.

6. Positioning calculation:

   By calculating satellite observation data with known satellite position and clock offset data, the position coordinates of the receiver can be calculated. This calculation process usually uses precise mathematical models and algorithms, such as least squares or particle filtering.

In summary, static positioning uses GPS satellite signals to conduct multiple satellite observations and triangulation principles. By measuring the arrival time difference and distance relationship of the signals, it combines satellite data processing and positioning Solve the algorithm and finally determine the position coordinates of the receiver.

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