Sub sampling based software GPS receiver

  • Authors

    • M Harshali
    • M Venu Gopala Rao
    2018-03-18
    https://doi.org/10.14419/ijet.v7i2.7.10931
  • Acquisition, GPS, Sub sampling, Software GPS receiver, Tracking.

  • Abstract

    This paper focuses on reducing the processing time of software GPS receiver using sub-sampling techniques. As the GPS signals are wide band signals, sampling frequency is very high. Sub-sampling enables to reduce time for processing. From the simulation results, it is observed that the sampling frequency can be reduced up to 2.5 MHz without loss of tracked signal. The processing time is reduced for software GPS receiver after sub-sampling. The overall reduction in processing time is from 3.456647 sec to 2.15946 sec respectively for sampling frequency 5 MHz , 2.5 MHz. Thus time saved is 37% of the original one.  

     

     

  • References

    1. [1] Kaplan E.D, Hegarty C, Understanding GPS Principles and Applications 2nd Ed. Artech House, 2005

      [2] Tsui, J.B.Y, Fundamentals of Global Positioning System Receivers.

      [3] A Software Approach, Copyright 2000 John Wiley and Sons, Inc.Print ISBN 0-471- 38154-3 Electronic ISBN 0-471- 20054-9.

      [4] Tian, J., Ye, W., Lin, S., Hua, Z.:SDR GNSS Receiver Design over Stand-Alone Generic TI DSP platform.IEEE 10th Int. Symposium on SSTA, pp. 42-- 47,Bologna, 2008.

      [5] Psiaki, M.L., â€Block Acquisition of Weak GPS Signals in a Software Receiver,†Proc. of ION GPS, Salt Lake City, UT, Sept. 11-14, 2001, pp. 2838-2850.

      [6] Borre, K., Akos, D.M., Bertelsen, N., Rinder, P.Jensen, S.H.: A Software Defined GPS and Galileo receiver A Single-Frequency Approach, 1st edition, Boston, 2006.

      [7] Miao, J., Chen, W., Liu, J., Sun, Y., Hu, C.: Design and implementation of GPS software receiver based on software-defined radio. Nanjing Hangkong Hangtian Daxue Xuebao/Journal of NUAA, vol. 40, no. 6, pp.774-779, 2008.

      [8] Ratnam, D. V., Ashish, P., Swathi, P., Venu Gopala Rao, M.: Acquisition of GPS L1 Signals using Cooley-Tukey FFT Algorithms, The 2013 IEEE International Conference on Signal Processing, Computing and Control (2013 IEEE ISPCC) at Jaypee University of Information Technology, Shimla, India from 26-28, September 2013.

      [9] Venu Gopala Rao M., Ratnam, D. V., Faster GPS/IRNSS acquisition via sub sampled fast Fourier transform (ssFFT) and thresholding. Annual IEEE India Conference (INDICON), Mumbai, pp. 1-4, 2013.

      [10] Venu Gopala Rao, M., Ratnam, D. V.: Faster Acquisition Technique for Software-defined GPS Receivers. Defence Science Journal, Vol. 65, No. 1, 2015.

      [11] Harshali, M., Venu Gopala Rao, M.: Compressive Sampling on Speech Signal using Random Demodulator. International Journal of Applied Engineering Research, ISSN 0973-4562 Vol. 10 No.20, 2015.

      [12] Harshali, M., Venu Gopala Rao, M.: Design of software design radio based GPS tracking using sub sampling. International Journal of Pure and Applied Mathematics, ISSN 1311-8080 (printed), ISSN 1314-3395 (online) Vol. 117, No.18, 2017, pp. 391-395

      [13] MUDAVATH, M. and HARIKISHORE, K., 2016. Design of CMOS RF front-end of low noise amplifier for LTE system applications. Asian Journal of Information Technology, 15(20), pp. 4040-4047.

      [14] HUSSAIN, S.N. and KISHORE, K.H., 2016. Computational Optimization of Placement and Routing using Genetic Algorithm. Indian Journal of Science and Technology, 9(47),.

      [15] KILARU, S., HARIKISHORE, K., SRAVANI, T., ANVESH CHOWDARY, L. and BALAJI, T., 2014. Review and analysis of promising technologies with respect to Fifth generation networks, 1st International Conference on Networks and Soft Computing, ICNSC 2014 - Proceedings 2014, pp. 248-251.

      [16] MADHAV, B.T.P., PISIPATI, V.G.K.M., KHAN, H. and UJWALA, D., 2014. Fractal shaped Sierpinski on EBG structured ground plane. Leonardo Electronic Journal of Practices and Technologies, 13(25), pp. 26-35

      [17] SUBBARAO, G.V. and MULAVEESALA, R., 2012. Quadratic frequency modulated thermal wave imaging for non-destructive testing. Progress In Electromagnetics Research M, 26, pp. 11-22.

      [18] MADHAV, B.T.P., KRISHNAM NAIDU YEDLA, G.S., KUMAR, K.V.V., RAHUL, R. and SRIKANTH, V., 2014. Fractal aperture EBG ground structured dual band planar slot antenna. International Journal of Applied Engineering Research, 9(5), pp. 515-524.

      [19] MADHAV, B.T.P., MOHAN REDDY, S.S., SANJAY, B. and UJWALA, D., 2013. Trident shaped ultra wideband antenna analysis based on substrate permittivity. International Journal of Applied Engineering Research, 8(12), pp. 1355-1361.

      [20] MADHAV, B.T.P., MANIKANTA PRASANTH, A., PRASANTH, S., KRISHNA, B.M.S., MANIKANTHA, D. and NAGASAI, U.S., 2015. Analysis of defected ground structure notched monopole antenna. ARPN Journal of Engineering and Applied Sciences, 10(2), pp. 747-752.

  • Downloads

  • How to Cite

    Harshali, M., & Venu Gopala Rao, M. (2018). Sub sampling based software GPS receiver. International Journal of Engineering & Technology, 7(2.7), 722-724. https://doi.org/10.14419/ijet.v7i2.7.10931

    Received date: 2018-04-02

    Accepted date: 2018-04-02

    Published date: 2018-03-18