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Title: Perspective navigation system employing the inner comparisons of signal phases received on an aircraft by a plurality of sensors

Abstract: A perspective display of a runway is obtained on an aircraft by sequentially transmitting signals from selected marker positions about the runway. A plurality of sensors are positioned on the aircraft with a first sensor being compared to a reference frequency and the other sensors being compared each with the first sensor. The comparisons are made measuring the accumulated phase difference during a given time with these phase differences being equivalent to distances which are then fed to a computer and displayed as a perspective view.


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Inventors: Lammers, Uve H. W. (Chelmsford, MA, US)

Application Number: 471934
Filing Date: 1974-05-21
Publication_date: 1976-04-20
Assignee:
Primary Class(es): 342/410 345/427, 701/17
Other Classes:
US Patent Ref:
2226860Dec, 1940Greig343/118.
2463095Mar, 1949Wight et al.343/108.
3237195Feb, 1966Schiffman343/112.
3503071Mar, 1970Earp343/112.

Other Refs:
Primary Examiner: Wilbur, Maynard R.
Assistant Examiner: Buczinski, S. C.
Attorney: Rusz; Joseph E., Siegel; Julian L.