Accession Number:

ADA063615

Title:

The Near-Term Potential of Doppler Location.

Descriptive Note:

Technical memo.,

Corporate Author:

JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Personal Author(s):

• Newton,R. R.

Report Date:

1978-09-01

Pagination or Media Count:

56.0

Abstract:

In this report we explore the precision that can be obtained in locating a point on the earths surface by analyzing the Doppler shift in the signals from a near-earth satellite. When we limit the discussion to the use of techniques that have been demonstrated in the laboratory but that may not have been introduced into field use, we find that the precision obtained by using the data from a single pass of a satellite should be about 18 cm. It should be possible to improve the precision by using data from more than one pass in the usual statistical fashion. Author

Descriptors:

• *POSITION FINDING
• *NAVIGATION SATELLITES
• *DOPPLER NAVIGATION
• AERODYNAMIC DRAG
• GEODESY
• SOLAR RADIATION
• TIME SIGNALS
• ATMOSPHERIC REFRACTION
• QUARTZ RESONATORS
• WATER VAPOR
• RADIATION PRESSURE
• IONOSPHERIC PROPAGATION

Subject Categories:

• Radiofrequency Wave Propagation
• Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE