DMARS-I

The DMARS-I platform, jointly designed by Inertial Science, Inc. and Sandia National Laboratories, is a full-featured low-cost inertial navigation system which is specially designed to function in various missile and rocket applications. DMARS-I is our third generation navigation system and evolved from our RIINS (Roll Isolated Inertial Navigation System) and DMARS (Digital Miniature Attitude Reference System). The DMARS-R has been successfully flown in various launch systems as SPINRAC, MAXUS, POIVRE, CHOPS, ET & CE, HERA, TMTS, KSR-II, and most recently RED CROW (1998) conducted by Sandia National Laboratories with ISI's DMARS-I.

The improvements are in size, power consumption, performance, maintainability, reliability, and most importantly in ownership cost (much lower than DMARS-R). Designing the DMARS-I in a smaller size, without compromising the performance will reduce material and production cost.

All body rates are digitally compensated for bias, scalefactor, misalignment, and temperature effects, from the digitized gyro and temperature information. The body angles are computed by using quaternion integration with 100Hz iteration rate.