A.V. Selin1, A.G. Azizov2, B.B. Nikolenko3, I.S. Petrov4

1-4 JSC “CNIRTI named after academician A.I. Berg” (Moscow, Russia)

1-4 post@cnirti.ru

Problem statement. Space radiosurveillance (SRS) assets are a key element in assessing and forecasting changes in the electronic environment in maritime waters, outer space, airspace, and land. One of the key performance criteria for onboard SRS assets is the accuracy of radio emission source (RES) location determination. The accuracy of RES location determination is affected by various systematic and random signal measurement errors. A pressing challenge is to improve the accuracy of RES location determination by reducing the impact of signal measurement errors.

Goal. To improve the accuracy of determining the location of the radio emission source within the coverage area of the SRS assets by correcting systematic errors using a ground-based test and adjustment complex.

Results. A method for improving the accuracy of RES location determination using a differential method is proposed . This method compensates for systematic bearing errors during the adjustment process, which is performed using signals from reference stations generated by a test and adjustment complex. The process of signal registration using a phase direction finder in a geocentric coordinate system is presented in a mathematically formalized form. The influence of the spatial distribution configuration of reference RES on the effectiveness of systematic error suppression is analyzed. A design for a test and adjustment complex for implementing the method for improving the accuracy of RES location determination is synthesized. A practical implementation option for the test and adjustment complex is proposed to enable the adjustment of the SRS system.

Practical significance. The application of the proposed method of adjusting the SRS system based on signals from reference stations using a control and adjustment complex will improve the accuracy of determining the location of target radio emission sources being detected.

Selin A.V., Azizov A.G., Nikolenko B.B., Petrov I.S. Increasing the accuracy of determining the location of objects by the differential method using a test and adjustment complex. Radiotekhnika. 2026. V. 90. № 5. P. 59−66. DOI: https://doi.org/10.18127/j00338486-202605-08 (In Russian)

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