T-gnss Gnss Reference Receiver

Transcript

T-GNSS GNSS Reference Receiver The RT Logic modular Global Navigation Satellite System (GNSS) Reference Receiver simultaneously acquires, tracks, and demodulates GPS L1, L2, and L5 and Galileo E1, E5, and E6 signals on multiple channels. Each Receiver is comprised of one or more Downconverter modules, a Clock Generation module, and multiple Receiver modules, all housed in a single ruggedized five rack-unit (5U) chassis with dual-redundant power supplies. The Downconverter Modules receive GPS or Galileo RF signals, and converts them to an IF, where they are filtered and digitized using a high-speed Analog-to-Digital Converter (ADC), digitally downconverted to baseband using a Field Programmable Gate Array (FPGA)implemented Digital Downconverter (DDC), and transmitted to any of the Receiver modules. The Receiver modules receive digital data from any of the Downconverter modules and perform acquisition, tracking, and demodulation. All processing is implemented in firmware on FPGAs. Sophisticated Digital Signal Processing (DSP) algorithms are utilized to extract navigation data messages in the presence of environmental degradation. All modules are easily replaceable, interchangeable, and hot-swappable, enabling field reconfiguration and maintenance without system downtime. Applications ƒƒ Monitor Stations ƒƒ Satellite Test Equipment ƒƒ Jamming and Spoofing Detection ƒƒ Integrity Monitoring ƒƒ Test Ranges ƒƒ User Equipment Initialization ƒƒ Special Applications ƒƒ Augmentation Systems (Aviations, Marine) ƒƒ Ionosphere Monitoring ƒƒ Geospatial Reference SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE. www.rtlogic.com technology that connects Downconverter Module ƒƒ Converts GNSS RF Signals to Digital IF L1 ƒƒ Custom Frequency Plans Available on Request ƒƒ Processes Three Frequencies in Parallel ƒƒ Optional Redundant Downconverters for Higher Reliability T400GNSS ƒƒ High System Reliability and Ease of Maintenance ƒƒ High-Speed Backplane for Distribution of Digital IF Between ƒƒ Downconverters and Receivers ƒƒ Dual Redundant, Hot-Swappable Power Supplies ƒƒ Auto-Switching Frequency Reference ƒƒ Internal 10 MHz OCXO ƒƒ External 5 MHz or 10 MHz Input Overrides Internal Oscillator ƒƒ Optional CPU Processor for Local Monitor, Control, and Maintenance ƒƒ Ruggedized 5U Chassis Receiver Module ƒƒ Acquires, Tracks, and Demodulates GNSS Signals from up to 24 SVs per Module ƒƒ GPS C/A, L2C, L5, L1C PRN Codes ƒƒ GNSS E1-B, E1-C, E5a, E5b, E6-B, E6-C ƒƒ Pseudo-Range (PR) and Accumulated Delta Range (ADR) Measurements ƒƒ Signal Strength Measurements ƒƒ Programmable Tracking Correlator Spacing ƒƒ Rapid Time and Frequency Domain Search for Fast Direct Acquisition ƒƒ Software-Based Tracking and Demodulation Algorithms ƒƒ Industry-Standard Xilinx FPGAs Enhance Future Upgrades ƒƒ 10/100/1000BASE-T Network Interface ƒƒ Hot-Swappable for High Availability 12515 Academy Ridge View Colorado Springs, CO 80921, U.S.A. Tel: 719.598.2801 Fax: 719.598.2655 www.rtlogic.com Copyright© Real Time Logic, Inc. RTL-DST_T400GNSS-2015-4 L I ADC LO 1 RF Input Splitter L2 R L I ADC L5 R L I LO 5 FPGA To Receivers LO 2 ƒƒ Wideband (85 MHz) Front-End ƒƒ Hot-Swappable for High Availability R ADC