V.V. Egorov – Ph. D. (Eng.), Senior Research Scientist, Head of Department, 

Saint-Petersburg State University of Aerospace Instrumentation

K.V. Zaichenko – Dr. Sc. (Eng.), Professor, Head of Department of Medical Radio Electronics,  Saint-Petersburg State University of Aerospace Instrumentation

E-mail: kvz_k41@aanet.ru

M.L. Maslakov – Post-graduate Student, Research Scientist, 

JSC «Russian Institute for Power Radiobuilding» (Saint-Petersburg)

E-mail: maslakovml@gmail.com

V.F. Mikhailov – Dr. Sc. (Eng.), Professor, Saint-Petersburg State University of Aerospace Instrumentation

Operation of the currently used data transmission systems with adaptive signal correction is provided by periodically transmitting a special test signals. However, this approach leads to a reduction of the energy and time resource, resulting in a reduction of information transmission rate.

In recent years, great interest acquires the concept of building non-test adaptive transmission system, involving the assessment necessary of the adaptation parameters using information signals. Design non-test adaptive correction methods devoted to this work. This paper proposes a method of using segments of the reliably received code block as test. The search for such segments is performed in each reliably received code block.

The code blocks should be of such a length that channel characteristics of the communication remained quasi-stationary in the time of transmission. At the same time, codeword length reduction results in a reduction of its noise immunity, which can be compensated for by increasing redundancy code. This in turn leads to a reduction of information transmission speed of the system. Thus, an important objective of optimization of such data transmission system is the selection of the best combination of code block length, a code rate and provide the desired noise immunity. In addition, using the non-test methods of adaptive correction essential performance indicators are the average time of stable operation, and the probability of stable operation for a specified time.

1. Nikolaev B.I. Posledovatel'naya peredacha diskretny'x soobshhenij po neprery'vny'm kanalam s pamyat'yu. M.: Radio i svyaz'. 1988.
2. Egorov V.V., Smal' M.S., Maslakov M.L. i dr. Sovremenny'e nauchny'e issledovaniya. Vy'pusk 2. Konczept. 2014. ART 54830. URL: http://e-koncept.ru/2014/54830.htm.
3. Tixonov A.N., Arsenin V.Ya. Metody' resheniya nekorrektny'x zadach. M.: Nauka. 1986.
4. Sayed A.H. Adaptive filters. New Jersey: Hoboken: John Wiley & Sons. Inc. 2008.
5. Egorov V.V., Maslakov M.L. // Materialy' IX Vseros. konf. «Radiolokacziya i radiosvyaz'». Moskva. 2015. S. 182.
6. Klovskij D.D., Sojfer V.A. Obrabotka prostranstvenno-vremenny'x signalov. M.: Svyaz'. 1976.
7. Egorov V.V., Maslakov M.L., Mingalyov A.N. // E'lektrosvyaz'. 2011. № 11. S. 34.
8. Morelos-Saragosa R. Iskusstvo pomexoustojchivogo kodirovaniya. Metody', algoritmy', primenenie. M.: Texnosfera. 2006.
9. Maslakov M.L. // E'lektrosvyaz'. 2014. № 7. S. 40.