DEAD RECKONING NAVIGATION POSITION COMPUTERS
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Abstract
INERTIAL NAVIGATION SYSTEMS IN WHICH BASIC POSITION DATA IS SUPPLIED TO A POSITION DISPLAY DEVICE FROM A DEAD RECKONING COMPUTER THAT RESOLVES THE OUTPUTS OF SPEED AND HEADING DETECTING APPARATUS INTO COORDINATE POSITION SIGNALS. MECHANICAL AND ELECTRICAL INTEGRATOR SYSTEMS ARE UTILIZED AS THE BASIC DEAD RECKONING COMPUTERS. IN THE PREFERRED CONSTRUCTIONS, THE DEAD RECKONING COMPUTER IS CONTINUOUSLY UP-DATED, IN ACCORDANCE WITH THE OUTPUT FROM A RADIO NAVIGATION RECEIVER MEANS, TO CORRECT THE OPERATION OF THE COMPUTER TO A RATE COMMERSATURE WITH THE MAXIMUM OVERALL DRIFT RATE OF THE SENSING DEVICES AND THE COMPUTER.
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