1. Multiple measurements can be combined with trilateration and multilateration to find a location. 2. These non-traditional PAR systems use transponder multilateration, triangulation and / or trilateration . 3. :This sounds like trilateration to me. 4. A GPS receiver can use the transmissions from multiple such satellites to calculate its own location using trilateration . 5. TLS is based on transponder multilateration and trilateration and consequently tracks all aircraft that respond to the interrogations. 6. Trilateration in general is calculating with triangles of known distances / sizes, mathematically a very sound system.7. The traverse is more accurate than triangulateration ( a combined function of the triangulation and trilateration practice ). 8. Then a trilateration technique can be used to calculate the estimated position of the device relative to the access points. 9. Its 3-D positioning estimative component ( based on modeling ) employs methods related to triangulation, trilateration and multidimensional scaling. 10. System designs must take into account that at least three independent measurements are needed to unambiguously find a location ( see trilateration ).