№4 2018


Spacecraft velocity determination in nongeostationary mobile satellite communications


M.S. Tsimbal


JSC Academician M. F. Reshetnev Information Satellite Systems
Zheleznogorsk, Krasnoyarsk region, Russian Federation


Measuring the motion characteristics of a spacecraft is the most important task in the operation of any satellite system. Based on the obtained coordinates and components of the velocity vector, the orbit of the spacecraft is determined and its motion predicted, which is necessary for organizing control and communications. However, due to the incomplete determinism of the orbit due to the influence of gravitational anomalies, the resistance of the medium and other disturbing forces, this prediction needs constant refinement. Trajectory parameters of spacecraft are traditionally determined using measuring channels of radio engineering systems with an active response, combined with telemetry and command information transmission channels, using ground-based control complex with the involvement of specialized command and measurement systems, command-measuring complexes and a ballistic center. Also known are methods for trajectory measurements of a spacecraft using global navigation satellite systems, which presupposes the presence on board of the equipment for receiving navigation signals. At the same time, for existing and prospective space systems for various purposes, it is becoming increasingly important to expand the areas of autonomous operation. The article describes a method for determining the velocity of a non-geostationary spacecraft with a multibeam antenna system without using ground-based measuring instruments. The estimation of errors of the velocity vector for the method of direct measurement of the radial velocities of the object. Proposed measures to improve the accuracy of determining the velocity of the spacecraft using information about the location of the subscriber.


Doppler effect, Doppler shift, spacecraft velocity, mobile satellite communications


[1] Dudko B. P. Kosmicheskie radiotekhnicheskie sistemy [Space Radio Systems]. Tomsk, Tomsk State University of Control Systems and Radioelectronics, 2012, 291 p. (In Russian)

[2] Tuzov G. I. Vydelenie i obrabotka informacii v dopplerovskih sistemah [Isolation and processing of information in Doppler systems]. Moscow, Sov. Radio, 1967, 256 p. (In Russian)

[3] Gorchakovskiy A. A., Evstratko V. V., Mishurov A. V., Panko S. P., Ryabushkin S. A., Sukhotin V. V., Shatrov V. A. Tasks and their solutions in the process of developing control and measurement systems for spacecraft // The Research of the Science City, 2015, no. 4, pp. 6–9.

[4] Lysenko L. N., Betanov V. V. Principy i osnovnye i osnovnye napravleniya sovershenstvovaniya nazemnogo avtomatizirovannogo kompleksa upravleniya kosmicheskimi poletami [Principles and Basic and Main Directions for Improving the Ground-based Automated Complex for the Control of Space Flights] // Vestnik MGTU im. N. E. Bauman. Ser. «Engineering», 2011, no. 1, pp. 17–30. (In Russian)

[5] Agadzhanov P. A., Barabanov N. M., Burenin N. I. Kosmicheskie traektornye izmereniya. Radiotekhnicheskie metody izmerenij i matematicheskaya obrabotka dannyh [Cosmic Trajectory Measurements. Radio measurement methods and mathematical data processing]. Moscow, Sov. Radio, 1969, 504 p. (In Russian)

[6] Dyatlov A. P. Sistemy sputnikovoj svyazi s podvizhnymi ob"ektami [Satellite communication systems with mobile objects]. Taganrog, TSURE, 2004, 95 p. (In Russian)

[7] Kamnev V. E., Cherkasov V. V., Chechin G. V. Sputnikovye seti svyazi [Satellite communication networks]. Moscow, Military parade, 2010, 608 p. (In Russian)

[8] Kolchinsky V. E, Mondurovsky I. A., Konstantinovsky M. I. Avtonomnye dopplerovskie ustrojstva i sistemy navigacii letatel'nyh apparatov [Autonomous Doppler devices and navigation systems of aircraft]. Moscow, Sov. Radio, 1975, 432 p. (In Russian)

[9] Shebshaevich V. S., Dmitriev P. P., Ivantsevich N. V. Setevye sputnikovye navigacionnye sistemy [Network satellite navigation systems]. Moscow, Radio and communication, 1986, 408 p. (In Russian)

[10] Silverstov S. D. Tochnost' izmereniya kosmicheskih apparatov radiotekhnicheskimi metodami [Accuracy of measurement of spacecraft by radio engineering methods]. Moscow, Sov. Radio, 1970, 319 p. (In Russian)

For citing this article

Tsimbal M.S. Spacecraft velocity determination in nongeostationary mobile satellite communications // Spacecrafts & Technologies, 2018, vol. 2, no. 4, pp. 198-203. doi: 10.26732/2618-7957-2018-4-198-203

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