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Precision guidance system for aircraft launched bombs

  • US 5,657,947 A
  • Filed: 11/24/1995
  • Issued: 08/19/1997
  • Est. Priority Date: 08/24/1994
  • Status: Expired due to Term
First Claim
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1. A method of initializing aircraft launched individual bombs having a GPS receiver to provide initial GPS position and velocity states with a RF repeater link consisting of the steps of:

  • a) selecting four GPS satellites and acquiring and tracking the navigation messages from these satellites using a conventional GPS receiver;

    b) activating the bombs through the use of a beginning message code monitored by station keeping electronics on each bomb;

    c) amplifying and adjusting the received navigation messages and transmitting the messages through a co-axial cable distribution system to one or more GPS repeater transmitters;

    d) transmitting the adjusted GPS navigation messages into the bomb bay location of the aircraft where the GPS receivers on the bombs acquire and track the navigation messages and use the GPS RF transmitted data to determine the satellites being used by the GPS system and determine bomb position and velocity in the bomb bay during flight, prior to weapon launch.

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