NOISE-IMMUNE SATELLITE NAVIGATION SYSTEM OF SMALL-SIZED UNMANNED AERIAL VEHICLE Russian patent published in 2025 - IPC H04B15/04 H04B1/10

Abstract RU 2837588 C1

FIELD: navigation.

SUBSTANCE: invention relates to radio-electronic means of navigation support of unmanned aerial vehicles (UAV), intended for operation in conditions of intense interference. Navigation system includes a navigation receiver placed on a bearing frame inside the radiotransparent housing of the UAV and a transponder located on the outer surface of said housing and comprising a receiving antenna, low-noise amplifier and transmitting antenna, wherein the receiving antenna of the repeater is made in the form of a quadrifilar receiving antenna installed in the centre of three concentric reflecting-absorbing barriers, which provides effective exclusion of the most dangerous "horizontal interference" from reception and processing. Signal at the input of the standard receiving antenna is generated by re-radiation of the navigation signal by the transmitting antenna of the repeater.

EFFECT: high noise immunity of a satellite navigation system of a small-sized UAV without reworking or replacing a standard on-board navigation receiver.

1 cl, 4 dwg

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RU 2 837 588 C1

Authors

Kaplin Aleksandr Yurevich

Korotin Andrej Anatolevich

Stepanov Mikhail Georgievich

Dates

2025-04-02—Published

2024-01-18—Filed