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A Tetherless, Absolute-Time Channel Sounder, Processing, and Results for a Complex Environment



David R. Novotny, Alexandra E. Curtin, Catherine A. Remley, Peter B. Papazian, Jeanne T. Quimby, Richard Candell


we present a channel sounder that can operate without a tether and still maintain an absolute time reference between the source and receiver. Based on a sliding correlator, with synchronized rubidium clocks to generate phase references for the up- and down- converted RF carriers, and synchronous triggering, the system generates locked signals in the short term – 10’s of hours. The system has an operational range of 10 MHz to 6 GHz with an instantaneous channel bandwidth of up to 200 MHz. We start with a discussion on processing measurements for oversampled, band-limited signals. Spectral truncation is compared with filtering, DC bias removal, and calibrations to remove systematic effects are discussed. We conclude with channel sounding results, power delay profile, RMS Delay Spread, and time of arrival versus position for an electromagnetically complex environment.
Proceedings Title
Proceedings of the Antenna Measurement Techniques Association
Conference Dates
October 30-November 4, 2016
Conference Location
Austin, TX
Conference Title
Proceedings of the 38th Antenna Measurement Techniques Association


channel sounding, propagation, power delay profile, impulse response


Novotny, D. , Curtin, A. , Remley, C. , Papazian, P. , Quimby, J. and Candell, R. (2016), A Tetherless, Absolute-Time Channel Sounder, Processing, and Results for a Complex Environment, Proceedings of the Antenna Measurement Techniques Association, Austin, TX, [online], (Accessed July 17, 2024)


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Created November 4, 2016, Updated February 19, 2017