Which statement best describes static GPS surveying?

Which statement best describes static GPS surveying?

• A. Static GPS surveying uses two or more stationary receivers simultaneously tracking the same satellites to determine relative positions.
• B. Static GPS surveying relies on post-processing without any base station.
• C. Static GPS surveying uses a single receiver and does not require reference coordinates.
• D. Static GPS surveying requires moving rovers during data collection.

Answer: (A)

Static GPS surveying is about fixing two or more receivers at known or fixed locations and collecting observations for an extended period while they simultaneously track the same satellites. With parallel observations, you can form double-difference measurements that cancel many common errors (such as satellite clock and atmospheric delays), letting you determine the precise baseline—the vector between the receivers—with very high accuracy. The long occupation time reduces random noise and improves stability, which is why static surveys are capable of centimeter-level results after processing. This approach uses multiple receivers and a fixed geometry, unlike moving-rover or single-receiver methods, and while post-processing is often used to finalize coordinates, it depends on having the stable, simultaneous observations from more than one receiver.

Static GPS surveying is about fixing two or more receivers at known or fixed locations and collecting observations for an extended period while they simultaneously track the same satellites. With parallel observations, you can form double-difference measurements that cancel many common errors (such as satellite clock and atmospheric delays), letting you determine the precise baseline—the vector between the receivers—with very high accuracy. The long occupation time reduces random noise and improves stability, which is why static surveys are capable of centimeter-level results after processing. This approach uses multiple receivers and a fixed geometry, unlike moving-rover or single-receiver methods, and while post-processing is often used to finalize coordinates, it depends on having the stable, simultaneous observations from more than one receiver.