| 摘要 |
FIELD: radio engineering; digital communication means for receiving, demodulating, and processing wide range of signals. SUBSTANCE: proposed system designed for processing comprehensive range of signals at data transfer speeds up to 260 Mbit/s has series-connected antenna with drive and guidance system, receiving filter, low-noise amplifier, high-frequency preamplifier, and power splitter; K transceivers (K <n); intermediate-frequency switching device; n demodulating devices for digital trains of hierarchical multiplexing layers IV, III, II, and I; personal computer with monitor and keyboard whose outputs are connected to inputs of all devices incorporated in system. Proposed system provides for panorama scanning and display on channel charging monitor, use of reduced quantity of radio receivers due to transceiver tuning by 72 MHz band, and tuning of demodulating devices to any signal in 72 MHz band, demodulation and processing of comprehensive range of signals due to multifunctional design of demodulating devices and demultiplexers of hierarchical multiplexing layer IV - I, system adapting to varying signal medium using software means, assembly of system components (from power splitter to layer I demultiplexer) into single unit of Eurounit type (type ASMC 21-layer crate), system control and serviceability check with aid of personal computer, results being displayed on monitor. EFFECT: enlarged functional capabilities of system. 3 cl, 4 dwg |
