Radio and optical alignment method based on GPS.

Area of Science:

• Engineering
• Geomatics

Background:

• Free-space point-to-point communication requires precise transmitter and receiver alignment.
• Traditional alignment methods using electronic compasses are susceptible to magnetic deviation, while alternatives like radio direction finders or star sensors are costly.

Purpose of the Study:

• To present a novel, cost-effective system for free-space communication alignment.
• To develop an alignment method that is independent of local magnetic field variations and internet connectivity.

Main Methods:

• The system utilizes three Global Positioning System (GPS) coordinates for alignment.
• Two GPS coordinates are measured at the transmitter, with the receiver's position pre-determined.
• The alignment algorithm is designed for implementation on micro-controller units or standard computers.

Main Results:

• The proposed GPS-based system effectively aligns transmitter and receiver devices.
• The method demonstrated accuracy in both long-distance (simulated) and short-distance (field) tests across different hemispheres.
• The system's performance is unaffected by local magnetic deviations.

Conclusions:

• The developed GPS coordinate system offers a reliable and accurate solution for free-space communication alignment.
• This method provides a viable alternative to expensive or unreliable alignment techniques, particularly in remote locations.
• The system's independence from magnetic fields and internet access enhances its applicability in diverse environments.