AIRBORNE RADIO INSTRUMENTS Russian patent published in 2012 - IPC B64C39/00 

FIELD: radio engineering.

SUBSTANCE: invention refers to the field of radio engineering. The airborne radio instruments contains a three-channel antijamming radio communication circuit of the centimeter waves range (CM) that is based on coherent effective processing of digital noise-like waveforms that contains a narrowband and two broadband channels and including a wireless modem of CM range and a two-channel antijamming radio communication circuit of the decimeter waves range (DM) that is based on coherent effective processing of digital noise-like waveforms that contains a narrowband and a broadband channels and including a wireless modem of DM range. The transmit antenna consists of two subsystems. Each of them includes an antenna of CM range, an antenna of DM range and an angled channel controller connected to the azimuth drive. The angled channel controllers of both transmit subsystems are connected to the control module of the CM wireless module. The control modules of the CM and DM wireless modules are connected to each other, and in the radio communication circuits of both ranges the narrowband antijamming channels are used that ensure the in-phase operation of transmission and broadband receiving devices with the help of their timing signals when active jamming is in place. The CM and DM modems are made in such a way that for all radio circuits the unified signal framework is formed, notably for phase-shift keyed signals (PS) with the timing frequency of 10 MHz.

EFFECT: reliability and interference protection related to interchange of radiotelemetric and command information between the aircraft and the ground control post.

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