Title :
Design of a software-based multi-channel GNSS IF signal generator
Author :
Lim, Soon ; Lim, Deok Won ; Liu, Meilin ; Moon, Seung Wook ; Park, Chansik ; Lee, Sang Jeong
Author_Institution :
Div. of Electron., Radio Sci.&Eng. & Inf. Commun. Eng., Chungnam Nat. Univ., Daejeon
Abstract :
New GPS signals and Galileo signals are preparing the civil navigation system. GPS L2C signal is being broadcasted and GPS L5 and Galileo signals are being developed. Galileo system is planned to provide E1 and E5 signal for not only civil navigation but also commercial service and Safety of Life service. New GPS civil signals and Galileo signals are expected to provide much enhanced navigation performance. This paper designs a software-based multi-channel GNSS IF signal generator for simulating future navigation system. The generated signals are verified using a software-based GNSS receiver. The software-based multi-channel GNSS IF signal generator provides GPS L1 C/A, L5 signals and Galileo E1, E5 signals. The navigation message is included only in GPS L1 signal, and other signals do not include the navigation data. Therefore, generated L1 signal is validated by its navigation results; other generated signals are validated by their acquisition and tracking results using a software GNSS receiver.
Keywords :
Global Positioning System; aerospace computing; signal generators; GNSS receiver; GPS signals; Galileo signals; L2C signal; civil navigation system; software-based multichannel GNSS IF signal generator; Automatic generation control; Cryptography; Design engineering; Forward error correction; Global Positioning System; Modulation coding; Radio control; Satellite navigation systems; Signal design; Signal generators; GNSS signal; IF signal generator; Multi-channel;
Conference_Titel :
Control, Automation and Systems, 2008. ICCAS 2008. International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-89-950038-9-3
Electronic_ISBN :
978-89-93215-01-4
DOI :
10.1109/ICCAS.2008.4694599
