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A low-noise and flexible FPGA-based binary signal measurement generator

Published online by Cambridge University Press:  18 March 2019

Gordon Notzon ,
Robert Storch ,
Thomas Musch  and
Michael Vogt
Gordon Notzon*
Affiliation:
Institute of Electronic Circuits, Ruhr University Bochum, 44801 Bochum, Germany
Robert Storch
Affiliation:
Institute of Electronic Circuits, Ruhr University Bochum, 44801 Bochum, Germany
Thomas Musch
Affiliation:
Institute of Electronic Circuits, Ruhr University Bochum, 44801 Bochum, Germany
Michael Vogt
Affiliation:
Institute of Electronic Circuits, Ruhr University Bochum, 44801 Bochum, Germany
*
Author for correspondence: Gordon Notzon, E-mail: [email protected]
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Abstract

In the area of electromagnetic metrology, binary coded excitation signals become more and more important and various binary coded sequences are available. The measurement approach is to assess the impulse response function of a device under test by correlating the response signal with the excitation signal. In order to achieve a high measurement reproducibility as well as a high dynamic range, the generated binary coded signals have to provide low-noise. In this contribution, a low-noise signal generator realized with a field programmable gate array is presented. The performance investigation of different kinds of binary coded excitation signals and different correlation concepts have been practically investigated. With a chip rate of 5 Gchip/s, the generator can be utilized for ultra-wideband applications. In order to allow for a low-noise and long-term stable signal generation, a new clock generator concept is presented and results of phase noise measurements are shown. Furthermore, an algorithm to fast and precisely shifting the time lag between two binary coded signals for correlating excitation and response signals with a hardware correlator is presented. Finally, the realized demonstrator system is tested using two commonly used types of binary coded sequences.

Keywords

low noisemicrowave measurementssignal generatorsbinary sequencesfield programmable gate array
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 11 , Special Issue 5-6: EuMW 2018 Special Issue (Part I) , June 2019 , pp. 447 - 455
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2019 

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References

1Brueckner, S, Schubert, K, Fahlbusch, J and Schoebel, J (2014) Generation of wideband m-sequences: a low-cost approach. 2014 IEEE International Conference on Ultra-WideBand, September, 484–488.Google Scholar
2Li, X, Scherr, S, Wu, H, Pancera, E and Zwick, T (2011) Feasibility study of an ultra wideband pseudo-noise-radar for medical applications. Proceedings of the 5th European Conference on Antennas and Propagation, April, 290–293.Google Scholar
3Ahmad, U, Guermandi, D, Medra, A, Thillo, WV and Bourdoux, A (2016) Impact of even and odd order non-linearity on PMCW radars. 2016 IEEE Radar Conference, May, 1–5.Google Scholar
4Pott, A and Bradley, SP (1995) Existence and nonexistence of almost-perfect autocorrelation sequences. IEEE Transactions on Information Theory 41, 301–304.Google Scholar
5Sachs, J, Kmec, M, Fritsch, HC, Helbig, M, Herrmann, R, Schilling, K and Rauschenbach, P (2013) Ultra-wideband pseudo-noise sensors. Applied Radio Electronics 12, 79–88.Google Scholar
6Mextorf, H, Plüschke, C, Daschner, F, Kent, M and Knöchel, R (2013) UWB multi-channel m-sequence system for moisture measurements. 2013 IEEE International Conference on Ultra-Wideband, September, 221–225.Google Scholar
7Ng, HJ, Feger, R and Stelzer, A (2014) A fully-integrated 77-GHz UWB pseudo-random noise radar transceiver with a programmable sequence generator in SiGe technology. IEEE Transactions on Circuits and Systems I: Regular Papers 61, 2444–2455.Google Scholar
8Monka, C, Brueckner, S and Schoebel, J (2015) M-sequence-based material characterisation. 2015 German Microwave Conference, March, 21–24.Google Scholar
9Notzon, G, Storch, R, Musch, T and Vogt, M (2018) A simulator for the performance investigation of nonideal pseudo-random binary coded signals. 2018 International Conference on Electromagnetics in Advanced Applications, September, 250–253.Google Scholar
10Notzon, G, Polzin, L, Storch, R, Musch, T and Vogt, M (2017) An m-sequence-based baseband network analyzer using a combination of hardware and software correlator. 2017 47th European Microwave Conference, October, 1195–1198.Google Scholar
11Notzon, G, Storch, R, Musch, T and Vogt, M (2018) An FPGA-based measurement generator for cyclically shifted binary signals. 2017 48th European Microwave Conference, September, 922–925.Google Scholar
12Sachs, J (2004) Ground Penetrating Radar, 2nd Edn. Stevenage: The Institution of Electrical Engineer. ch. M-sequence radar, 225–237.Google Scholar
13Mallach, M, Grys, D, Musch, T and Storch, R (2016) A broadband frequency ramp generator for very fast network analysis based on a fractional-n phase locked loop. 2016 46th European Microwave Conference, October, 1023–1026.Google Scholar
14Robins, W (1998) Phase Noise in Signal Sources: Theory and Applications. Stevenage: Peter Peregrinus Ltd.Google Scholar
15Kester, W. Converting oscillator phase noise to time jitter. Analog Devices, MT-008 Tutorial Rev. A, October 2008.Google Scholar