08-08-2016, 03:49 PM
Abstract
According to the dictionary guidance is the ‘process of guiding the path of an object towards a given point, which in general may be moving’. The process of guidance is based on the position and velocity if the target relative tothe guided object. The present day ballistic missiles are all guided using theglobal positioning system or GPS.GPS uses satellites as instruments for sendingsignals to the missile during flight and to guide it to the target. SATRACK is asystem that was developed to provide an evaluation methodology for theguidance system of the ballistic missiles. This was developed as a comprehensivetest and evaluation program to validate the integrated weapons system design for nuclear powered submarines launched ballistic missiles.this is based on thetracking signals received at the missile from the GPS satellites. SATRACK hasthe ability to receive record, rebroadcast and track the satellite signals.SATRACK facility also has the great advantage that the whole data obtainedfrom the test flights can be used to obtain a guidance error model. The recordeddata along with the simulation data from the models can produce acomprehensive guidance error model. This will result in the solution that is the best flight path for the missile.