Search results
Results from the WOW.Com Content Network
Television guidance (TGM) is a type of missile guidance system using a television camera in the missile or glide bomb that sends its signal back to the launch platform. There, a weapons officer or bomb aimer watches the image on a television screen and sends corrections to the missile, typically over a radio control link.
TERCOM is the typical system for cruise missile guidance, but is being supplanted by GPS systems and by DSMAC, digital scene-matching area correlator, which employs a camera to view an area of land, digitizes the view, and compares it to stored scenes in an onboard computer to guide the missile to its target.
This produces a location and direction. The guidance system can then use this information to correct the flight path of the missile. [citation needed] During the cruise portion of the flight to the target, the accuracy of the system has to be enough only to avoid terrain features. This allows the maps to be a relatively low resolution in these ...
The D-17B (D17B) computer was used in the Minuteman I NS-1OQ missile guidance system. The complete guidance system contained a D-17B computer, the associated stable platform, and power supplies . The D-17B weighed approximately 62 pounds (28 kg), contained 1,521 transistors , 6,282 diodes , 1,116 capacitors , and 5094 resistors .
Since so many types of missile use this guidance system, they are usually subdivided into four groups: A particular type of command guidance and navigation where the missile is always commanded to lie on the line of sight (LOS) between the tracking unit and the aircraft is known as command to line of sight (CLOS) or three-point guidance.
The guidance systems, the KMU-353 and KMU-390, were essentially re-packaged Maverick A-model seekers, while the KMU-359/B used the later IR imager version from the D-model Mavericks. When completely assembled, the seeker, guidance system and bomb were known as the GBU-8 , or GBU-9 when used with the 3,000 pounds (1,400 kg) Mark 118 bomb . [ 7 ]
The output of the navigation system, the navigation solution, is an input for the guidance system, among others like the environmental conditions (wind, water, temperature, etc.) and the vehicle's characteristics (i.e. mass, control system availability, control systems correlation to vector change, etc.).
Minuteman III guidance ring containing the D37D computer. Minuteman III guidance ring on display at the National Air and Space Museum. The D37D Minuteman III flight computer was initially supplied with the LGM-30G missile, as part of the NS-20 navigation system. The NS-20 D37D flight computer is a miniaturized general purpose (serial ...