DEVICE FOR FINDING AND TRACKING WIDEBAND SIGNALS Russian patent published in 2007 - IPC H04B1/10 

FIELD: technology for transferring information via radio communication channels.

SUBSTANCE: device contains blocks for forming copies of synchronization and information signals, a group of correlating tracking channels, informational correlating channel, finding device, threshold generator, comparison circuit, delay phasing device and decision taking circuit, outputs of which are connected to inputs of finding device and delay phasing device. Its other input is connected to output of block for forming synchronization signal copies, and remaining inputs are connected to appropriate inputs of finding device and to multiplexers of a group of correlating tracking channels. In accordance to invention, two correlating channels of informational signal are introduced, consisting of, serially connected: multiplexer, integrator and amplitude detector, two subtraction devices, controllable attenuator, adder, generator of commands and key. Inputs of informational correlating channels are connected to additional outputs of block for forming copies of informational signal and to input of device. Their outputs are connected to inputs of second subtracting device. Its output via a key is connected to input of adder. Another input of adder through a controllable attenuator is connected to output of first subtracting device, inputs of which are connected to outputs B and C of correlating channels of tracking group. Output of adder is connected to input of commands generator, output of which is connected to input of finding device. Inputs of key and controlled attenuator are connected to output of decision taking circuit.

EFFECT: increased resistance to interference.

3 dwg