A robotic complexes control system with stealth radio signals and based on a multi channel radio transceiver

In the article the basic principles of the hidden under noise radio channels organization for command- information interaction system between mobile objects and control point are investigated. The basis of the channel is a high- speed modem with the function of adapting to existing conditions and features of the control tasks. The implementation of the stealth mode is based on the spread spectrum and is focused on the ultimate characteristics of the modem. These characteristics include the maximum channel speed and signal bandwidth. The signal provides the necessary quality of transmission in the conditions of time-frequency scattering in the channel. The system of secret control of an unmanned mobile object (MO) is proposed, which can be a robotic complex (car, wheeled platform, speedboat, UAV). Control can be carried out from the ground (CP), from water (yacht, boat), from the air (helicopter, UAV). The system is based on a multifunctional transmitting and receiving module (MTRM) consisting of a 4-channel radio transceiver with direct frequency conversion and a block digital processing based on high-performance FPGA. The covert control is based on the direct sequence spread spectrum signal.