CN/sub 0/ estimation and near-far mitigation for GNSS indoor receivers

This paper covers two key points in indoor and dense-urban positioning using Global Navigation Satellite Systems: CN/sub 0/ estimation, and near-far estimation problem. For the former, a novel CN/sub 0/ estimator adequate to deal with the low signal levels encountered in indoor and dense-urban environments is described. For the latter, the results of a novel near-far problem mitigation technique are presented. Both simulations and live data have been used to illustrate the advantages of the proposed algorithms.