Passive self-determined position fixing system

Details Passive self-determined position fixing system Passive self-determined position fixing system

1992-07-17

1993-08-24

Issing, Gregory C.

Communications: directive radio wave systems and devices (e.g.,

Directive

Position indicating

342 55, 342458, G01S 302, G01S 1300

Patent

active

052393100

ABSTRACT:
A passive self-determined position fixing system for use by aircraft and other users such as sea-going vessels utilizes a directional radar in combination with an omnidirectional radar facility to produce a directional radar beam and simultaneous omnidirectional radar transmission. A television type broadcast facility provides a broadcast of the PPI display of the directional radar system. The directional radar pulse signals together with the omnidirectionally retransmitted radar pulse signals are processed by the position fixing system aboard the host aircraft or the like to determine range information. A display system such as a conventional television receiver responds to the broadcast PPI display to produce a similar display within the host aircraft. The position fixing system combines the PPI type display together with the information with the directional and omnidirectional radar transmissions to identify the user or host aircraft or vessel upon the PPI type display.

REFERENCES:
patent: 3836961 (1974-09-01), Ennis

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