Electronic device and method for identifying satellite

An electronic device, comprising:

• a memory storing computer-executable instructions;
• and
• at least one processor configured to access the memory and execute the instructions, wherein the instructions comprise:
• filtering received global navigational satellite system (GNSS) signals to identify valid satellites, based on receiving the GNSS signals from a plurality of satellites;
• obtaining a digital map of a predetermined target area around a reference position at which the GNSS signals are received;
• identifying candidate satellites from the valid satellites, based on coordinates obtained by projecting positions of the valid satellites and the reference position in a first direction and the digital map, in a three-dimensional (3D) space including the positions of the valid satellites and the reference position;
• and
• identifying at least one target satellite meeting a line of sight (LOS) at the reference position, based on coordinates obtained by projecting positions of the candidate satellites and the reference position in a second direction different from the first direction and the digital map, in the 3D space.