• Українська
  • English
ISSN 2415-3400 (Online)
ISSN 1028-821X (Print)

JITTER OF SYNCHRONIZATION OF THE STROBOSCOPIC CONVERTER

heading: 
APPLIED RADIOPHYSICS
Ruban, VP
Organization: 

O. Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine
12, Proskura st., Kharkov, 61085, Ukraine
E-mail: ruban@ire.kharkov.ua
https://doi.org/10.15407/rej2016.01.085
Language: Russian
Abstract: 

The estimation of synchronization instability becomes actual in GPR due to the fact that this phenomenon affects the accuracy of recording and reproducing the received signal forms and, accordingly, the efficiency of use of digital signal processing algorithms. The existing method for estimation of jitter of the GPR receiver using errors of the converted signal amplitude is not universal and should be corrected for the case of converter with incomplete charging of the storage capacitor. Simulation of the stroboscopic conversion with instability of sampling interval for cases of full charging (when the evaluation method gives correct results) and incomplete charging of the storage capacitor has been done in this paper. The relationship between the forms of probabilistic distribution of jitter and errors of amplitude after stroboscopic conversion has been analyzed. The jitter values originally specified in the simulation and the ones calculated (reconstructed) by a known method also have been analyzed. According to the simulation results, the limits of applicability of this method were determined. It is shown that the direct application of the jitter evaluation method which is right for the converter with a full charging gives incorrect estimates for the one with incomplete charging of storage capacitor. Due to this, the signal amplitude recovery procedure which allows obtaining a correct estimate of the jitter of synchronization of GPR receivers operating in the mode of incomplete charge storage capacitor has been suggested.
Keywords: accuracy of signal waveform measurement, ground penetrating radar, jitter, sampling, stroboscopic conversion

Manuscript submitted  15.01.2016
PACS     07.57.Kp; 84.40.Xb; 84.37.+q; 05.45.Xt
Radiofiz. elektron. 2016, 21(1): 85-91
Full text (PDF)

References: 
  1. Аstanin, L. Yu. and Коstylev, А. А., 1989. Fundamentals of ultrawideband radar measurements. Moscow: Radio i svyaz' Publ. (in Russian).
  2. Vladov, М. and Starovoitov, А. V., 2004. Introduction to ground penetrating radar: textbook. Moscow: Moscow University Publ. (in Russian).
  3. Sachs, J., Helbig, M., Herrmann, R., Kmec, M., Schilling, K., 2010. On the Range Precision of UWB Radar Sensors. In: 11th Int. Radar Symp. (IRS): proc. Vilnius, Lithuania, 16–18 June 2010. IEEE Publ.
  4. Pochanin, G. P., Batrakova, A. G., Urdzik, S. N.,  Ruban, V. P., Batrakov, D. O., 2014. Measuring of thickness of asphalt pavement with use of GPR. In: 15th Int. Radar Symp. (IRS) : proc. Gdansk, Poland, 16–18 June 2014. IEEE Publ.
  5. Davis, J. L., 1998. Roadway ground penetrating radar system. USA. Pat. 5835053.
  6. Shiping, Zhu, Chunlin, Huang, Yi, Su and Motoyuki, Sato, 2014. 3D Ground Penetrating Radar to Detect Tree Roots and Estimate Root Biomass in the Field. Remote Sens., 6(6), pp. 5754–5773. DOI: https://doi.org/10.3390/rs6065754
  7. De Chiara, F., Fontul, S. and Fortunato, E., 2014. GPR Laboratory Tests For Railways Materials Dielectric Properties Assessment. Remote Sens., 6(10), pp. 9712–9728. DOI: https://doi.org/10.3390/rs6109712
  8. Pochanin, G. P., Ruban V. P., Kholod, P. V., Shuba, A. A., Pochanin, A. G., Orlenko, A. A., 2013. Enlarging of power budget of ultrawideband radar. In: 6th Int. Conf. Recent Advances in Space Technologies (RAST2013): proc. Istanbul, Turkey, 12–14 June 2013. IEEE Publ.
  9. Orlenko, A. A. and Kholod, P. V., 1998. Optimum synthesis of transmitting-receiving sections of an underground radar. In: 3rd Int. Kharkov Symp. “Physics and Engineering of Millimeter and Submillimeter Waves” (MSMW'98): proc. Kharkov, Ukraine, 15–17 Sep. 1998. 2, pp. 546–548.
  10. Brannon, B. Sampled Systems and the Effects of Clock Phase Noise and Jitter. Applications Note AN – 756, Analog Devices, Inc. [online]. Available at: http://www.analog.com
  11. Brannon, B. and Barlow, A. Aperture Uncertainty and ADC System Performance. Applications Note AN – 501, Analog Devices, Inc. [online]. Available at: http://www.analog.com
  12. Enge, J., The Power Spectral Density of Phase Noise and Jitter: Theory, Data Analysis, and Experimental Results, Applications Note AN – 1067, Analog Devices, Inc. [online]. Available at: http://www.analog.com
  13. Dudnik, А. V., 2008. Particularities of measuring temporal instability in receivers of georadars. Naukoemkie tekhnologii, 9(8), pp. 12–20 (in Russian).
  14. Dudnik, А. V., 2009. Methods of jitter measurement and analysis in receivers of georadars. Usp. sovremennoi radioelektroniki, 1/2, pp. 51–57 (in Russian).
  15. Gryaznov, М. I., Gurevich, М. L. and Ryabinin, Yu. Ya., 1991. Pulse parameters measurement. Moscow: Radio i svyaz' Publ. (in Russian).
  16. Ruban, V. P., Shuba, А. А., Pochanin, А. G. and Pochanin, G. P., 2014. Signal samping with analog accumulation, Radiofizika i elektronika, 5(19)(4), pp. 83–89 (in Russian).
  17. Anatomy of an Eye Diagram. Applications Note, Tektronix [online]. Available at: http://www.tek.com
  18. Piskunov, N. S., 1985. Differential and integral calculus for higher technical schools. Moscow: Nauka Publ. (in Russian).