3886554 is referenced by 25 patents and cites 2 patents.

Method and apparatus for improving the accuracy of a vehicle location system, particularly of a phase ranging type, by reducing the effects of multipath propagation through the use of a variable pattern antenna for the vehicle transmitter. Separate range measurements are made using each antenna pattern, and the measurements are averaged to provide a more accurate reading.

Title
Method and apparatus for improving the accuracy of a vehicle location system
Application Number
05/353,286
Publication Number
3886554
Application Date
April 23, 1973
Publication Date
May 27, 1975
Inventor
Handy Edward F
Braun William V
Agent
Gillman James W
Parsons Eugene A
Assignee
Motorola
IPC
G01s 03/02
G01S 03/72
G01S 03/02
G01S 05/04
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