Modified angular attitude estimation algorithm using signals of Global Navigation Systems

Navigation apparatus of Global Positioning Systems are wildly used in many applications one of which is attitude determination using global satellite navigation signals, one of which is angular attitude determination. One of effective approach to this task is based on representation an object motion as linear motion along line-of-site and rotation about object center of mass. From this consideration it followed deferent tracking systems on signal parameters that connected with linear motion along line-of-site and on signal parameters that connected with rotation about object center of mass. In the article this approach is developed for synthesis of angular attitude estimation using signals of Global Navigation Systems for two-stage processing in navigation apparatus in coherent mode.

Objective − to get more effective algorithm of angular attitude estimation using signals of Global Navigation Systems.

In the article there are synthesized angular attitude estimation algorithm using signals of Global Navigation Systems when using two-stage processing in navigation apparatus. There are developed an approach based on representation an object motion as linear motion along line-of-site and rotation about object center of mass. From this consideration it followed deferent tracking systems on signal parameters that connected with linear motion along line-of-sight and on signal parameters that connected with rotation about object center of mass. Parameters of this tracing systems can be select separately to guarantee high accuracy of angel estimation. There are mentioned results of simulations synthesized algorithms from which it is followed that angel estimation rms can reach 4…4,5 second of arc when base line length is 1,9 m end signal-to-noise ratio is 48 dBHz.