Abstract
Digital beamforming (DBF) has been studied to obtain automatic beam steering towards desired signals and simultaneous elimination of multipath and jamming signals at GNSS receivers, which is made possible by spatial and temporal digital signal processing. In this paper, the limitations of conventional multipath and jamming suppression techniques, which have been proven and widely used in GPS, are investigated. Different DBF algorithms suitable for GNSS applications are investigated theoretically. New ideas for future development of DBF are presented. The implementation of digital beamforming in FPGA/DSP for practical application environments is also discussed.
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References
Agee BG (1989) Blind separation and capture of communication signals using a multitarget constant modulo beamformer. In: Proc IEEE Military Communication Conf, pp 1921–1927
Barry D, Veen V, Buckley KM (1988) Beamforming: a versatile approach to spatial filtering. IEEE ASSP Mag April
Dick C, Harris FJ (1999) Configurable logic for digital communications. IEEE Commun Mag 37(8):107–111
Harada H, Kamio Y, Fujise M (2000) Multimode software radio system by parameter controlled and telecommunication component block embedded digital signal processing hardware. IEICE Trans Comm E83-B, June, pp 1217–1228
Hein GW, Godet J, Issler J-L, Martin J-C, Erhard P, Lucas-Rodriguez R, Pratt T (2002) Status of Galileo Frequency and Signal Design. In: Proc of ION GPS 2002, Sept. 24–27, Portland, Oregon, pp 266–278
Karasawa Y, Kamiya Y (2000) Algorithm diversity in a software antenna. IEICE Trans Comm E83-B(6):1229–1236
Lee W, Ram J et al. (2000) Joint beamformer RAKE and decorrelating multiuser detector using matrix Levinson polynomials. IEICE Trans Commun E-83-B(8)
Meehan TK, Young LE (1992) On receiver signal processing for GPS multipath reduction. In: Proc 6th Int Geodetic Symp on Satellite Positioning, Columbus, Ohio, 18 March
Roy R, Kailath T (1986) ESPRIT—estimation of signal parameters via rotational invariance techniques. IEEE Trans Acoustics Speech Signal Processing 37:984–995
Schmidt RO (1986) Multiple emitter location and signal parameter estimation. IEEE Trans Ant Prop AP-34(3):276–280
Treichler JR, Larimore MG (1983) A new approach to multipath correction of constant modules signals. IEEE Trans Acoustics Speech Signal Processing ASSP-31(2):459–471
Treichler JR, Larimore MG (1985) New processing techniques based on the constant modules adaptive algorithm. IEEE Trans Acoustics Speech Signal Processing ASSP-33(2):420–431
Wang Y, Cruz JR (1995) Adaptive antenna array for cellular CDMA communication systems. In: Proc IEEE ICASSP, July, pp 1725–1728
Acknowledgements
The authors thank the reviewers of the manuscript for their help and useful comments. This work has been supported by the German Aerospace Center (DLR) (FKZ 50 NA 0104).
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Based on a paper presented at the GNSS2002 Conference, Copenhagen, 27–30 May 2002
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Fu, Z., Hornbostel, A., Hammesfahr, J. et al. Suppression of multipath and jamming signals by digital beamforming for GPS/Galileo applications. GPS Solutions 6, 257–264 (2003). https://doi.org/10.1007/s10291-002-0042-2
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DOI: https://doi.org/10.1007/s10291-002-0042-2