A recursive filtering technique for mobile terminal positioning in dynamic satellite systems

User position information is an important factor for achieving efficient operation of global wireless networks. An accurate estimation of the mobile terminal (MT) location cannot be obtained if the radio signals are corrupted by noise or other sources of signal degradation. As a consequence, processing algorithms capable of generating a single point of interception from many noisy samples need to be implemented. Simulation results presented in this paper demonstrate that a simple and computational efficient recursive filtering technique is effective in reducing the uncertainty introduced by measurement noise in the user location estimate produced by CDMA-based dynamic satellite systems.