Method of digital complex radio direction finding

Research area – radio devices and equipment.

Purpose – for use in radio engineering monitoring systems, can be used for radio monitoring and radio navigation.

Area. The developed method of digital complex radio direction finding can be implemented at all enterprises associated with the production of radio monitoring and radio navigation equipment.

Description. The development is based on the task of improving the speed and noise immunity of correlation-interferometric direction finders. The development uses a multi-storey antenna array that performs parallel spatial selection and high-precision bearing estimation using the spatial analytical signal reconstruction, which will provide a combination of high speed and noise immunity. The development will provide the possibility of real-time direction finding of interference sources with noise-like short-term emissions with a signal-to-noise ratio of 10 dB in the frequency range 100 MHz-20 GHz with the possibility of effective frequency selection of interfering signals, which will provide high noise immunity. A method, an algorithm of operation and a software model of a digital complex radio direction finder have been developed. Optimization and experimental studies of the direction finder are required. The results of the development will be introduced at two instrument-making enterprises, as well as in the educational process at the Department of Radio Engineering, Electronic Equipment and Telecommunications. Development does not require significant investment of time and resources for implementation.

Advantages. The proposed method differs significantly from its counterparts and can be successfully implemented both in the domestic market and abroad. The advantages of the new method of digital complex radio direction finding are an order of magnitude higher speed of direction finding, high noise immunity and accuracy (compared to the prototype).

Technical and economic effect. The proposed technology makes it possible to increase the speed of direction finding by a factor of 20 while providing the mean square deviation of the estimate of the bearing of 0.03 degrees for the incoming signal-to-noise ratio of 0 dB.

Novelty. 1 patent of Ukraine.

Readiness. A prototype has been made.

Cooperation. Joint industrialization.

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