Abstract
The power inversion algorithm is usually adopted in the traditional satellite navigation nulling antenna. The null can be formed on the direction of jamming with high power so as to decrease its power into the navigation receiver. The anti-jamming is realized, but receiving performances for navigation satellite signals have not been considered at all in above methods. In this paper, the published navigation satellite almanac and the parameters output from INS in the platform are fully utilized. The direction of signal arrival about each currently visible navigation satellite can be calculated in real time in the nulling antenna coordinate system. According to the LCMP (Linear Constrained Minimum Power) algorithm, the main beam pointing condition is restricted for each visible satellite in order to improve the receiving antenna gain for this direction. This is the first beam forming optimization. Then under the condition that the nulling freedom degree is within the allowable range, the null constraint conditions of antenna beams are imposed to the direction of other navigation satellites signals, in which the antenna gain are relatively larger in the firstly beam forming. This is the second beam forming optimization in order to reduce the multiple access interference of CMDA system. Through above two optimizations, it greatly reduces the external oppressive jamming and mutual interference between different navigation satellites. Finally, the feasibility and availability of this method are verified by simulations. It is an important reference for the improvement of anti-jamming performance and engineering application for satellite navigation nulling antenna.
Keywords
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Teunissen P, Montenbruck O (2017) Handbook of global navigation satellite systems. Springer, Germany
Zhao X, Ma X, Qu W (2009) Application of power inversion arithmetic in anti-interference design of GPS receiver antenna. Telecommun Eng 49(7):45–48
Wu R, Sun Q, Hu T et al (2010) Realization of GPS anti-jamming real-time system based on power inversion algorithm. J Civ Aviat Univ China 28(3):45–48
Shi R, Deng K, Li Z et al (2014) Equivalence analysis on two kinds of power inversion models for zero-trip in antenna array. GNSS World China 39(4): 4–7, 15
He X, Hu X, Luo B (2015) Algorithm for BD/MIMU integrated navigation system. National Defense Industry, Beijing
Trees HLV (2002) Optimum array processing part IV of detection, estimation, and modulation theory. Wiley, USA, New York
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Shi, R. (2018). Main Beam Pointing and Null Constraint Optimization for Satellite Navigation Nulling Antenna. In: Sun, J., Yang, C., Guo, S. (eds) China Satellite Navigation Conference (CSNC) 2018 Proceedings. CSNC 2018. Lecture Notes in Electrical Engineering, vol 499. Springer, Singapore. https://doi.org/10.1007/978-981-13-0029-5_25
Download citation
DOI: https://doi.org/10.1007/978-981-13-0029-5_25
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-0028-8
Online ISBN: 978-981-13-0029-5
eBook Packages: EngineeringEngineering (R0)