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For the problems of interaction ship between various disciplines and difficultiness of global optimization, the multidisciplinary design optimization theory was introduced to the design of torpedo guidance system. Combined with multidisciplinary design optimization theory, the disciplinary decomposition of torpedo guidance system, design contents of each discipline and the interdisciplinary coupling...
Traditional sculling algorithms make use of incremental output of gyros and accelerometers to design algorithms, when they are applied to fiber-optical gyro (FOG) strap down inertial system (SINS), whose gyros output angular rate signal, we should simulate incremental signals by angular rate, which not only increases design difficulty but also reduce calculation accuracy. In view of this, an improved...
It is usually accepted that UKF can be used in the form of state non-expansion when noise is additive, in order to prove it incorrect, we made use of scaled symmetric set unscented transformation to deduce and explain the difference in the situation of complicated additive noise model, theory deduction results indicated there were differences between expansion and non-expansion UKF algorithms while...
Sins has accumulated some error when UUV entered in matching region, so it is necessary to make use of appropriate signal integration strategy to estimate error for ensuring the precision of subsequent sailing. On base of building system nonlinear error model, UKF filter was proposed which used the information from underwater terrain matching and depth pressure sensor as measure. simulation results...
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