By Topic

Telemetry applications of SOQPSK and GMSK based modulation for airborne platforms

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Balasubramanian, U. ; Nat. Flight Test Center(NFTC), Aeronaut. Dev. Agency(ADA), Bangalore, India ; Pacharne, P.R. ; Radhakrishna, P. ; Naik, K.K.
more authors

Bandwidth restrictions for flight test operations have led the designers world over to graduate from analog telemetry schemes to more compact digital telemetry schemes. Proper precoding and pulse shaping of non-return to zero (NRZ) waveforms are necessary prior to digital modulation for limiting the bandwidth of power spectrum of the NRZ pulses. The most common pulse shapes used are Gaussian filter for Gaussian minimum shift keying (GMSK), raised cosine filters, etc. Recently shaped offset quadrature phase shift keying (SOQPSK) is introduced as a bandwidth efficient modulation technique. In this paper, we report the bandwidth efficiency of SOQPSK for S-band airborne data links working at 4 Mbps rate [1]. Our results show that the SOQPSK-TG is the more bandwidth efficient modulation scheme than GMSK for telemetry applications.

Published in:

Communications, Devices and Intelligent Systems (CODIS), 2012 International Conference on

Date of Conference:

28-29 Dec. 2012