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A new barycenter code discriminator for multi-access interference

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Abstract

The performance of code tracking loop in direct sequence spread spectrum system decreases because of multi-access interference. In order to solve this problem, this paper presents a new code discriminator based on barycenter algorithm. By calculating the barycenter of code phase by multiple PN code branches’ correlation results, PN code phase error can be obtained. Theoretical analysis of new discriminator’s performance is given, and it is indicated that the code tracking loop using this algorithm can also solve the problems of low ranging precision and large mean deviation caused by multi-access interference. The efficiency of the proposed algorithm is verified by simulation and measurements and the new discriminator is used in an aerospace engineering project successfully.

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References

  1. Andrea E, Francesca Z, Gabriele B. Spread-spectrum continuous-phase-modulated signals for satellite navigation. IEEE Trans Aerosp Electron Syst, 2012, 48: 3234–3249

    Article  Google Scholar 

  2. Ding S Q, Yang Z X, Pan C Y, et al. Spread spectrum technology: history, current situation and development (in Chinese). Telecommun Eng, 2004, 6: 1–6

    Google Scholar 

  3. Zhang S K, Wang H B, Yang J, et al. GPS short-delay multipath estimation and mitigation based on least square method. Syst Eng Electron, 2009, 20: 954–961

    Google Scholar 

  4. Pereira M, Postolache O, Girão P. Spread spectrum techniques in wireless communication. IEEE Instrum Meas Mag, 2009, 12: 21–24

    Google Scholar 

  5. Galzolari G P, Chiani M, Chiaraluce F, et al. Channel coding for future space missions. Proc IEEE, 2007, 95: 2157–2170

    Article  Google Scholar 

  6. Abdullah A R A J, Aljunid S A, Safar A M, et al. Mitigation of multiple access interference using two-dimensional modified double weight codes for optical code division multiple access system. Opt Eng, 2012, 51: 132–137

    Google Scholar 

  7. Zhou Y H, Mao Z G, Xie J. Design and implementation of the discriminator with half approximation structure in code tracking Loop for GPS (in Chinese). Microelectron Comput, 2010, 27: 162–164

    Google Scholar 

  8. Xu Y, Wang J, Wu S L. A new conic fitting code discriminator (in Chinese). J Electron Inf Technol, 2009, 31: 2369–2373

    Google Scholar 

  9. Zhu Y L, Liu Z K, Zhang Q S, et al. A new code discrimination algorithm for C/A code tracking loop of GPS receiver (in Chinese). J Electron Inf Technol, 2008, 30: 2742–2745

    Article  Google Scholar 

  10. Jardak N, Vervisch-Picois A, Samama N. Multipath insensitive delay lock loop in GNSS receivers. IEEE Trans Aerosp Electron Syst, 2011, 47: 2590–2609

    Article  Google Scholar 

  11. Juang J-C. Multi-objective approach in GNSS code discriminator design. IEEE Trans Aerosp Electron Syst, 2008, 44: 481–492

    Article  Google Scholar 

  12. Kao T-L, Juang J-C. Weighted discriminators for GNSS BOC signal tracking. GPS Solut, 2012, 16: 339–351

    Article  Google Scholar 

  13. Caffery J, Stüber G L. Effects of multiple-access interference on the noncoherent delay lock loop. IEEE Trans Commun, 2000, 48: 2109–2119

    Article  Google Scholar 

  14. Wong W K, Wu Y T, Leung S H, et al. A modified decorrelated delay lock loop for synchronous DS-CDMA systems. IEEE Trans Veh Technol 2008, 57: 3293–3299

    Article  Google Scholar 

  15. Thayaparan S, Ng T-S. The use of delay locked loop signals in DS/CDMA receiver for multiple-access interference reduction. IEEE Trans Veh Technol, 2006, 55: 980–989

    Article  Google Scholar 

  16. Van Dierendonck A J, Fenton P, Ford T. Theory and performance of narrow correlator spacing in a GPS receiver. J Inst Navig, 1992, 39: 265–283

    Google Scholar 

  17. Zhu X F, Chen X Y, Chen X. Comparison between strobe correlator and narrow correlator on MBOC DLL tracking loop. In: IEEE Instrumentation and Measurement Technology Conference, Binjiang, 2011. 746–749

    Google Scholar 

  18. Zhang J L. An inquiry into triangle recursive grouping data Barycenter forecasting method and application. In: IEEE International Conference on Grey System and Intelligent Services, Nanjing, 2011. 200–203

    Google Scholar 

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Authors and Affiliations

  1. School of Information and Electronics, Beijing Institute of Technology, Beijing, 100081, China

    YongQing Wang, Cong Li, Duo Xu & Na Yang

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  1. YongQing Wang
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  2. Cong Li
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  3. Duo Xu
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  4. Na Yang
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Correspondence to YongQing Wang.

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Wang, Y., Li, C., Xu, D. et al. A new barycenter code discriminator for multi-access interference. Sci. China Inf. Sci. 57, 1–9 (2014). https://doi.org/10.1007/s11432-013-4925-3

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  • DOI: https://doi.org/10.1007/s11432-013-4925-3

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