Leveraging Commercial Broadband LEO Constellations for Navigating

Abstract

He received his Ph.D. from Stanford in 1993 and has worked extensively on the Wide Area Augmentation System (WAAS). He has received the Thurlow and Kepler awards from the Institute of Navigation (ION). In addition, he is a fellow of the ION and has served as its president.

Advances in BeiDou Navigation Satellite System (BDS) and satellite navigation augmentation technologies

“…Signal augmentation technologies refer to the technology of signal extension which provides a signal source that is capable of transmitting ranging signals to expand and extend GNSS. Through signal augmentation technologies, users can obtain accurate and reliable locations in scenarios where GNSS cannot be used or does not work well (Ma 2018;Reid et al 2016;Wang et al 2018a). To overcome the vulnerability of the GNSS system from the perspective of availability, reliability, and anti-interference, some researchers both in China and abroad have proposed that LEO satellites broadcast a ranging signal to augment the performance of the satellite navigation system that is composed of Medium Earth Orbit (MEO) and High Earth Orbit (HEO) satellites.…”

“…Through the use of signal augmentation technologies, users can obtain accurate and reliable information concerning position in situations where GNSS cannot usually be used or does not work sufficiently (Ge et al 2018;Wang et al 2018a, b). For example, Low Earth Orbit (LEO) augmentation technology is a type of signal augmentation technology (Li et al 2019a;Ma 2018;Reid et al 2016). SBAS is a combination of information augmentation technologies and signal augmentation technologies, providing multiple augmentations including ranging signals, corrections, and integrity.…”

Performance of GNSS Global Ionospheric Modeling Augmented by LEO Constellation

“…In January 2015, Oneweb announced a partnership with Virgin and Qualcomm to launch a constellation of 648 LEO satellites in 2020 for broadband Internet transmission worldwide (Hanson, ). Boeing, SpaceX, Samsung, and other companies have also proposed their own LEO satellite constellation plans, and the number of satellites designed has reached more than 3,000–4,000 (Selding, , , ; Reid et al, ). Up to now, nearly 20 famous institutions and enterprises have announced their LEO satellite launch plans.…”

“…In recent years, some scholars have begun to carry out relevant research studies on LEO‐augmented GNSS precise orbit determination and positioning. Reid et al () proposed to extend the application of commercial LEO constellation to GPS navigation enhancement and demonstrated its feasibility. The results show that LEO constellation can effectively enhance PNT services.…”

Performance Evaluation of Navigation Using LEO Satellite Signals with Periodically Transmitted Satellite Positions

“…Signals of opportunity (SOPs) have been considered as an alternative navigation source in the absence of GNSS signals [1][2][3][4]. SOPs include AM/FM radio [5,6], cellular [7,8], digital television [9,10], and low Earth orbit (LEO) satellites [11][12][13][14]. These signals have been demonstrated to yield a standalone meter-level-accurate navigation solution on ground vehicles [15][16][17][18] and a centimeter-level-accurate navigation solution on aerial vehicles [19,20].…”