विधियों की तुलना करें

	डे़ड रेकनिंग	GNSS RTK
क्षेत्र	एयरोस्पेस	एयरोस्पेस
परिवार	Process / pipeline	Process / pipeline
उद्भव वर्ष	1940s	1980s
प्रवर्तक	Maritime navigation tradition	GPS constellation
प्रकार	Navigation method	Positioning method
मौलिक स्रोत	Savage, P. G. (2007). Strapdown Inertial Integration Technology (2nd ed.). Strapdown Associates.	Teunissen, P. J. G., & Kleusberg, A. (Eds.). (2003). GPS for Geodesy (2nd ed.). Springer-Verlag.
उपनाम	ded reckoning, inertial navigation, odometry	RTK, Real-Time Kinematic positioning, GNSS-RTK, differential GNSS
संबंधित	3	3
सारांश	Dead Reckoning is a fundamental navigation method that estimates position and heading by integrating velocity and angular rate measurements from inertial sensors over time, without external references such as GPS. The term derives from maritime tradition ('deduced reckoning') and remains a cornerstone of aerospace and autonomous vehicle navigation. Dead reckoning works reliably in GPS-denied environments and is the baseline navigation method when external navigation aids are unavailable.	Global Navigation Satellite System Real-Time Kinematic (GNSS RTK) is a high-precision positioning technique that uses carrier phase measurements from a reference receiver at a known location to correct the position estimates of a rover receiver in real time. Developed in the 1980s, RTK exploits spatial correlation of atmospheric errors to achieve centimeter-level accuracy within tens of kilometers of the reference station. RTK is now standard in surveying, construction, autonomous vehicles, and precision agriculture.