Abstract: Errors are reduced when tracing PRNS code delay, especially in receivers operating on signals with rather low code frequency (C/A code) under multibeam effect without deterioration or with minimum deterioration of the signal-to-noise ratio. A method of increasing noise immunity during reception of signals from satellite navigational systems and a device for realizing the same includes radio modules, an analog-to-digital converter, a digital correlation device and digital correlators. A discrimination signal is generated with a variable delay of the signal copy with respect to the exact copy. The use of the correcting sequence of gating digital signals makes it possible to eliminate the multipath effect at a delay of the reflected signal larger than 1.5 d and reduces its negative effect starting from a delay value greater than d/2. In this case, the energy losses compared with a pure mode of the narrow correlator are increased only by 1.76 dB.

Abstract: The portable GPS-receiver for a system of personal safety having such attributes, as diminished power consumption, overall dimensions and weight, because the input unit contains the multichannel digital correlator with N=by 8 to 12 channels of parallel processing connected with the microprocessor equipped with permanent storage unit for storage of the programs of signal processing and operative storage for data storage by activity in a standard mode without interlock of GPS signals, thus the microprocessor of the output unit is connected by trunks of a data exchange to the former of clock signals and heterodyne frequencies of an input unit, with an input-output unit of the data, with the transceiver unit and in addition provided with the permanent storage unit for storage of the programs of signal processing and operative storage for data storage and samples of the multichannel digital correlator for operation in conditions of interlock of GPS signals, and each of N of channels of the multichannel digi

Abstract: Digital correlator of a receiver for reception of signals of satellite radio navigation systems which has one or more decision making unit(s) generating detection signals indicative of a strength of the received signals of satellite radio navigation systems, whereby a fast search is performed for detection of strong signals, and a slow search is performed only when signals were not detected during the fast search.

Abstract: Receiver of pseudonoise signals of satellite radio navigation systems for determining coordinates and time using signals of GLONASS and GPS systems, characterized by small dimensions and absence of complicated elements such as digitizers.