Which of the following methods breaks the signal into finite segments to find the ASF?(a) Millington’s method(b) Bill’s method(c) Differential method(d) Table look up processThe question was asked in exam.My question comes from Hyperbolic Radio Systems topic in chapter Terrestrial Radio Navigation System of Avionics

Which of the following methods breaks the signal into finite segments

1.	Which of the following methods breaks the signal into finite segments to find the ASF?(a) Millington’s method(b) Bill’s method(c) Differential method(d) Table look up processThe question was asked in exam.My question comes from Hyperbolic Radio Systems topic in chapter Terrestrial Radio Navigation System of Avionics
Answer» The correct choice is (a) Millington’s method Best explanation: In Millington’s method, the signal between the transmitter and the receiver is BROKEN down into finite segments of different conductivity levels, BASED on conductivity MAPS. The INCREMENTAL phase delay is then computed as a function of range and conductivity for each path segment summed and averaged to PROVIDE an estimate of ASF.

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