Cooperative radio localization and navigation systems can be used in scenarios where the reception of global satellite system (GNSS) signals is not possible or impaired. While benefit cooperation has been highlighted by many papers, calibration widely considered, but equally important practice. Utilizing signal propagation time requires group delay ranging bias estimating directions-of-arrival ...

This article is a review of Global Navigation Satellite Systems for space scientists who are interested in how GNSS signals and observables can be used to understand ionospheric dynamics and, conversely, how ionospheric dynamics affect the operational capabilities of GPS. The most common form of GNSS is the Global Positioning System (GPS); we will first review its operating principles and then ...

Andriy Konovaltsev received his engineer diploma and the Ph.D. degree in electrical engineering from Kharkov State Technical University of Radio Electronics, Ukraine in 1993 and 1996, correspondingly. He joined the Institute of Communications and Navigation of DLR in 2001. His main research interest is in application of antenna array signal processing for improving performance of satellite navi...

The Federal Aviation Administration is leading the National Airspace System modernization effort, in part, by supplanting traditional air traffic services with the Global Positioning System (GPS) aided by the Wide and Local Area Augmentation Systems (WAAS & LAAS). Making GPS the primary-means of navigation will enhance safety, flexibility and efficiency of operations for all aircraft ranging fr...