Aerospace and Electronic Systems Magazine August 2017 - 58

Acquisition of GNSS Signals with Secondary Code
[19]

[20]
[21]

[22]
[23]

[24]

[25]

[26]
[27]
[28]
[29]
[30]

[31]

[32]

[33]

[34]

[35]

[36]

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Mathis, H., Flammant, P., and Thiel, A. An analytic way to optimize
the detector of a post-correlation FFT acquisition algorithm. In Proceedings of the 16th International Technical Meeting of the Satellite
Division of the Institute of Navigation (ION GPS/GNSS 2003), Portland, OR, Sept. 2003, 689-699.
van Nee, D., and Coenen, A. New fast GPS code-acquisition technique using FFT. Electronics Letters, Vol. 27, 2 (Jan. 1991), 158-160.
Akopian, D. Fast FFT based GPS satellite acquisition methods. IEE
Proceedings Radar, Sonar and Navigation, Vol. 152, 4 (Aug. 2005),
277-286.
Ziedan, N. GNSS receivers for weak signals. GNSS Technology and
Applications Series. Artech House, 2006.
Foucras, M., Julien, O., Macabiau, C., and Ekambi, B. A novel computationally efficient Galileo E1 OS acquisition method for GNSS
software receiver. In Proceedings of the 25th International Technical
Meeting of the Satellite Division of the Institute of Navigation (ION
GNSS 2012), Nashville, TN, Sept. 2012, 365-383.
Leclère, J., Botteron, C., and Farine, P.-A. Comparison framework of
FPGA-based GNSS signals acquisition architectures. IEEE Transactions on Aerospace and Electronic Systems, Vol. 49, 3 (Jul. 2013),
1497-1518.
Leclère, J., Botteron, C., and Farine, P.-A. Expressing discrete convolutions and correlations using matrices and polynomials: A unified
presentation. IEEE Signal Processing Magazine, to be submitted.
Altera. FFT megacore function user guide. Aug. 2014.
Xilinx. LogiCORE IP fast Fourier transform product guide. Oct. 2014.
Lattice. FFT compiler IP core users guide. Aug. 2011.
Microsemi. Core FFT handbook. Sept. 2013.
Leclère, J., Botteron, C., and Farine, P.-A. Resource and performance
comparisons for different acquisition methods that can be applied to a
VHDL-based GPS receiver in standalone and assisted cases. In Proceedings of the IEEE/ION Position Location and Navigation Symposium (PLANS), May 2010, 745-751.
Leclère, J., Botteron, C., and Farine, P.-A. Acquisition of modern
GNSS signals using a modified parallel code-phase search architecture. Signal Processing, Vol. 95, (Feb. 2014), 177-191.
Leclère, J., Botteron, C., Landry, R., and Farine, P.-A. FFT splitting
for improved FPGA-based acquisition of GNSS signals. International
Journal of Navigation and Observation, Vol. 2015, (Nov. 2015), article ID 765898.
Kaplan, E., and Hegarty, C. Understanding GPS: Principles and
applications (2nd ed.). GNSS Technology and Applications Series.
Artech House, 2005.
Leclère, J., Botteron, C., and Farine, P.-A. Implementing superefficient FFTs in Altera FPGAs. EE Times Programmable Logic Designline, Feb. 2015. [Online] www.eetimes.com, http://infoscience.epfl.
ch/record/204540.
Leclère, J., and Landry, R. Jr. Complexity reduction for high sensitivity acquisition of GNSS signals with a secondary code. In Proceedings
of the 29th International Technical Meeting of the Satellite Division
of the Institute of Navigation (ION GNSS 2016, Portland, OR, Sept.
2016, 436-443.
Leclère, J., Andrianarison, M., and Landry, R. Jr. Efficient GNSS
secondary code correlations for high sensitivity acquisition. In Proceedings of the European Navigation Conference (ENC), Lausanne,
Switzerland, May 2017, 1-12.

APPENDIX A
MEMORY-BASED ACCUMULATOR

Figure 12.

Memory-based accumulator, summing NS sequences of NP samples.

Figure 13.

Timing diagram of Figure 12, with NP = 3 and NS = 4. The notation Σs,p
s
x .
corresponds to
k =0 k , p



APPENDIX B
TIMING DIAGRAM OF THE IMPLEMENTATIONS

Figure 14.

Timing diagram of the implementation of the direct correlation over the
secondary code period (Figure 2). The colors indicate successive periods, which may be used for further coherent or non-coherent integration
or for testing other carrier frequencies. The processing time to compute
K times the full correlation is N + LN +N + LN + K × N = NP(KNS + 2NS)
+ 2LN.

IEEE A&E SYSTEMS MAGAZINE

AUGUST 2017


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