Lockheed Martin Selects Linux for Missile Defense

m3lt writes "Business Wire is reporting that Concurrent announced today that Lockheed Martin Space Systems has selected RedHawk(TM) Linux as the operating system for their United States Army Theater High Altitude Area Defense (THAAD) program." From the article: "Lockheed Martin selected RedHawk for the THAAD program due to the precision and guaranteed response time of Concurrent's RedHawk Linux real-time operating system. Only RedHawk Linux was able to ensure the high frame rates required in their HIL simulation without frame overruns, thereby ensuring the highest quality of system test."

Comments

THAAD

[Karrde712]

First point. THAAD is actually "Terminal High Altitude Area Defense" and is being developed concurrently between Lockheed Martin and Raytheon.

I worked on the THAAD project for Raytheon from 1999-2000. Here is the unclassified description of how it functions:

Upon radar detection of an incoming missile (such as a SCUD) the THAAD missile is launched against it. Unlike earlier technologies for missile defense (such as the PATRIOT*), the THAAD missile does not contain any explosive warhead, instead using the available space and weight for a more sophisticated guidance system. The THAAD warhead contains an active guidance system that will seek the incoming missile and collide with it, destroying the incoming missile with its own warhead.

Earlier technologies relied on a wide-area warhead that would be detonated once the missile was within a certain diameter about the target, relying on the concussion wave and shrapnel to destroy the missile. This was unsatisfactory as in some circumstances the missile would destroy only the target's propulsion system and allow the undamaged warhead to fall to the ground, resulting in collateral damage.

*The PATRIOT missile was not designed as an anti-missile weapon, it was in fact designed as an anti-aircraft weapon, but was retasked during Operation: Desert Storm to shoot down SCUD missiles. It was considered very impressive that it worked at all, considering it was designed for use against much slower-moving targets.

Way Back When

[jmichaelg]

I worked on an air defense system back in the 70's. It was built for the King of Morroco so he could show off to the other despots in North Africa. It wasn't as if Morocco was seriously threatened by anyone but I guess that having been overrun by the Germans, French and the occasional American task force rescuing a Greek who claimed to be an American, the king was a little concerned. The system consisted of two radars parked on a couple of mountaintops talking to a single cpu which updated a couple of consoles and huge wall screen. Whereas the consoles got the standard cryptic designators for each plane, the wall screen got elaborate detailed descriptions since they were for the king to read. The cpu was the fastest cpu of the time, a 16 mhz behemoth that filled a room.

The guy I reported to was one of the smartest people I've ever met and fortunately for the project, he was responsible for the software. He'd come into our offices (the only people that worked in cubicles back then were HP employees) and see how we were doing. He'd frequently find us waiting on a compile as the machine was hard pressed to have 30 or so developers using a single computer to compile with. It began to bother him quite a bit because he'd read the design spec which called for the system to handle a couple of 1000 radar returns each minute. As he was technically capable, he sat down one day and wrote a radar simulator that fed radar packets to a "processor." All the processor did was count the number of packets it received and all the radar simulator did was send empty packets. Not a very complicated piece of software but it was enough to show the hardware wasn't going to meet the spec. It couldn't do that simple task, let alone process the packets, draw positions on the controller screens etc.

He wrote a memo and sent it up the chain. A week passed and no response so he wrote another memo saying the same thing but he changed the memo title. The new title was "I know you're out there - I can hear you breathing." That got his bosses moving and the problem was addressed.