The computer used to control the Patriot missile is based on a 1970s design and uses 24-bit arithmetic. The Patriot system tracks its target by measuring the time it takes for radar pulses to bounce back from them. Time is recorded by the system clock in tenths of a second, but is stored as an integer. To enable tracking calculations the time is converted to a 24-bit floating point number. Rounding errors in the time conversions cause shifts in the system's ``range gate", which is used to track the target.

1. Patriot Missile Failure

2. introduction
PATRIOT mean Phased Array TRacking Intercept
Of Target.
 Failed to counter SCUD tactical ballistic missiles
developed by the Soviet Union during the Cold War.

3. Who owns
 It was develop by the united state army.
 It was manufactures by the U.S defense contractor
Raytheon, Hughes and RCA.

4. When it was develop, cost
 Unit cost US$2-3 million.
 It designed in 1969.
 Produced in 1976.
 Number of built 1,106 launchers in U.S service

5. What is the purpose
 Long-range, all-altitude, all-weather air defense
system
 To counter tactical ballistic missiles, cruise missiles
and advanced aircraft.

6. Explain disaster or failure
 American Patriot Missile battery failed to intercept an
incoming Iraqi Scud missile.
 The Scud struck an American Army barracks killing 28
soldiers and injuring more than ninety.

7. Any Question ?

8. Thank You

9. Group Members
 TG/2017/231
 TG/2017/244
 TG/2017/263
 TG/2017/279