High Speed Programmable Digital Telemetry Filter for Flight Test

  • M. V. Navitha
  • M. Z. Kurian
  • G. Koteswara Rao
  • B. Umashankar
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 174)


Digital telemetry filter is an essential subsystem of ground instrumentation which is a part of flight test instrumentation used for military aircraft flight testing. Flight test instrumentation includes on-board instrumentation and ground instrumentation. Typical waveform used in telemetry system for flight testing, which is hybrid in nature (PCM+FM+FM/FM), is multiplexed in frequency domain. Digital telemetry filter plays a critical role to separate data (PCM), hot mike (FM) and vibration (FM/FM) from the received baseband signal during flight test in real time. This paper describes a pipelined approach for the implementation of high speed digital telemetry filter for flight test on low power field programmable gate arrays (FPGA). This paper also provides a brief discourse on the effective application of VLSI design methodologies for efficient implementation of digital filter algorithms. The filter is designed in VHDL, simulated using ModelSim, synthesized using Quartus-II and the implemented on Cyclone-II FPGA.


Flight test Digital telemetry filter Test bench PLL FPGA 


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  1. 1.
    Bruce Owens, D., Brandon, J.M., Croom, M.A., Fremaux, C.M., Heim, E.H., Vicroy, D.D.: Overview of Dynamic Test Techniques for Flight Dynamics Research at NASA LaRC. American Institute of Aeronautics and Astronautics, NASA Langley Research Center, Hampton, VA, 23681Google Scholar
  2. 2.
    Borek, R.W., Pool, A.: Basic Principles of Flight Test Instrumentation Engineering. AGARDograph 160 Flight Test Instrumentation Series, vol. I(2)Google Scholar
  3. 3.
    Carden, F., Jedlicka, R., Henry, R.: Telemetry Systems Engineering. Library of Congress Cataloging-in-Publication DataGoogle Scholar
  4. 4.
    Pool, A., Bosman, D.: Basic Principles of Flight Test Instrumentation Engineering. AGARDograph 160Google Scholar
  5. 5.
    Telemetry Tutorial, L-3 Communications Telemetry West, ML1800 Rev. AGoogle Scholar
  6. 6.
    Punskaya, E.: Basics of Digital Filters (unpublished)Google Scholar
  7. 7.
    Jackson, B.A.: Digital Filter Design And Synthesis Using High-Level Modeling Tools (in press)Google Scholar
  8. 8.
    Chen, C., Li, B., Wang, C.: Chebyshev I Bandpass IIR Filter with 6th Order. Script of Digital Systems (2003) (unpublished)Google Scholar
  9. 9.
    IIR_SOS IIR filter Second-Order-Section (2012),
  10. 10.
    Pedroni, V.A.: Circuit Design Using VHDL (text book)Google Scholar
  11. 11.
    Ghosh, M.: Design and Implementation of Different Multipliers Using Vhdl. National Institute of Technology, Rourkela (2007)Google Scholar
  12. 12.
    An Introduction to Digital Filters, Application Note, Intersil (January 1999)Google Scholar
  13. 13.
    Using the Analog Devices Active Filter Design ToolGoogle Scholar
  14. 14.
    Infinite Impulse Response Filter Structures in Xilinx FPGAs, WP330 (v1.2), August 10 (2009) Google Scholar
  15. 15.
    Using the Synopsys Design Constraints Format, Application Note Version 2003.6 (June 2003) Google Scholar
  16. 16.
    Parhi, K.K.: Pipelined and Parallel Recursive and Adaptive FiltersGoogle Scholar

Copyright information

© Springer India 2013

Authors and Affiliations

  • M. V. Navitha
    • 1
  • M. Z. Kurian
    • 2
  • G. Koteswara Rao
    • 3
  • B. Umashankar
    • 3
  1. 1.Digital ElectronicsSri Siddhartha University, Sri Siddhartha Institute of TechnologyTumkurIndia
  2. 2.Department of Electronics & CommunicationSri Siddhartha Institute of TechnologyTumkurIndia
  3. 3.Aeronautical Development AgencyBangaloreIndia

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