विधियों की तुलना करें
चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| टेरकॉम (TERCOM)× | डे़ड रेकनिंग× | |
|---|---|---|
| क्षेत्र | एयरोस्पेस | एयरोस्पेस |
| परिवार | Process / pipeline | Process / pipeline |
| उद्भव वर्ष≠ | 1980s | 1940s |
| प्रवर्तक≠ | Boeing, military guidance | Maritime navigation tradition |
| प्रकार≠ | Localization method | Navigation method |
| मौलिक स्रोत≠ | Golden, J. P. (1983). Terrain contour matching (TERCOM): A cruise missile guidance aid. In In-Flight Measurement Technology. AGARD Conference Proceedings No. 336, 3–1 to 3–16. link ↗ | Savage, P. G. (2007). Strapdown Inertial Integration Technology (2nd ed.). Strapdown Associates. link ↗ |
| उपनाम | TerCom, terrain-aided navigation, TANS | ded reckoning, inertial navigation, odometry |
| संबंधित | 3 | 3 |
| सारांश≠ | Terrain Contour Matching (TERCOM) is a terrain-aided navigation method that corrects position estimates by matching altimeter measurements against a stored digital elevation map (DEM). Developed by Boeing in the 1980s for cruise missile guidance, TERCOM enables accurate navigation in GPS-denied environments by exploiting the unique terrain signature at each location. TERCOM remains essential for missile guidance, autonomous underwater vehicles, and systems operating in jamming scenarios. | 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. |
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