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EPU (1)
- Usado para
- estimated position uncertainty
- Definição1
- 95 per cent accuracy bound on horizontal position. EPU is defined as the radius of a circle, centred on the reported position, such that the probability of the actual position being outside the circle is 0.05.
- Fonte1
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Manual on the universal access transceiver (UAT). 2nd ed. Montreal, 2012. (Doc. 9861 AN/460).
- Definição2
- The measure of the accuracy of a position estimate.
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Assessment of ADS-B and multilateration surveillance to support air traffic services and guidelines for implementation. Montreal, 2012. (Cir. 326 AN/188).
- Nota adicional1
- When reported by a GNSS system, EPU is commonly called HFOM (horizontal figure of merit).
- Related Term
- HFOM