| 摘要 |
FIELD: radio navigation. ^ SUBSTANCE: receiver contains radio frequency converter, N channel digital correlator with device for quick searching and shaper of time marker signals and calculator, in which device for quick searching contains input multiplexer of GPS/GLONASS, digital generator of carrier, mixer of carrier, shift register of signal, code register, M multiplexers of signal, M multiplexers of code, M mixers of code, M-input summator, integrator, unit for calculation of complex number module square, the second summator, RAM, unit for generation of RAM address, unit for maximum selection, threshold device and synchronizer. Device for quick searching provides coherent accumulation of signal at the interval of 1 ms with further non-coherent accumulation for the time set bt calculator depending on expected ratio of signal-noise. ^ EFFECT: reduction of time spent for signal searching. ^ 5 dwg |
