Novatel OM-20000077 user manual Multipath, Static vs. Kinematic Positioning

GPS Overview Appendix G

GPS satellites

GPS antenna

Differential data

		Radio
User with hand-held		RX
		GPS
computer		RX
	Rover station

Radio

TX

GPS

RX

GPS antenna (shown with choke-ring ground plane)

Base station

Figure 24: Example of Differential Positioning

G.3.2 Static vs. Kinematic Positioning

Static and kinematic positioning refer to whether a GPS receiver is stationary or in motion while collecting GPS data.

G.3.3 Real-time vs. Post-mission Data Processing

Real-timeor post-missiondata processing refer to whether the GPS data collected by the receiver is processed as it is received or after the entire data-collection session is complete.

G.4 Multipath

Multipath signal reception is one of the most plaguing problems that detracts from the accuracy potential of GPS pseudorange differential positioning systems. This section will provide a brief look at the problems of multipath reception and some solutions.

Multipath occurs when an RF signal arrives at the receiving antenna from more than one propagation route (multiple propagation paths), see Figure 25 on Page 72.

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