This report is a handbook for the use of the TGIF program which has recently been modified. The TGIF program is a digital simulation program which may be used to study the boost, midcourse, and homing phase of the interception of a target by an interceptor using proportional navigation. The program will be most useful after hand calculations have established general tactical cases, and before complex guidance and control studies are performed on an analog computer.nNoise can be inserted as a range dependent input to the tracking system. Several combinations of tracker and roll dynamics are available as options.
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