描述
RSR GNSS转码器/GPS全星座模拟器
创新性的RSR GNSS转码器（tm）允许将任何传统GPS设备改装为下一代GNSS、SAASM、M-code、INS和其他PVT/PNT源。它基于JLT的下一代低成本GPS模拟器技术，也可作为通用小型GPS模拟器用于测试、制造、鉴定、欺骗和干扰模拟。RSR GNSS转码器（tm）只有1.6 x 2.3英寸小，不需要任何外部计算机，功耗小于1.1W，可直接安装在Rockwell Collins RSR SAASM Puck接收机下方，并提供可选的CSAC保持能力。
典型应用是将转码器模块和用户选择的GNSS前端插入传统天线系统中。RSR GNSS转码器（tm）的输出是-120dBm L1 GPS RF信号，在传统目标接收机看来就像标准的实时天空GPS信号一样。转码器获取NMEA或SCPI基带位置、速度和时间信息，并将其以毫秒为单位转换为匹配的RF输出。允许接收任何现代GNSS系统（带有SBAS、Galileo、Glonass、北斗、SAASM、M-code等的GPS），并使用集成的全星座GPS模拟器将其实时转换为可发送到任何传统GPS接收机的传统GPS RF信号。因此，该系统使用新的GNSS技术进行了改装，而不必改变传统系统中的任何东西，只需用RSR GNSS转码器（tm）替换GPS天线。为了增加功能和性能，转码器包括实时INS，以及用于异常保留（GNSS拒绝）操作的可选CSAC原子钟。
RSR GNSS转码器（tm）可以通过标准USB端口以及可选的车辆/航空电子电源供电和控制，该电源允许在7V至36V的任何地方运行。该装置功耗仅1.1W（无CSAC），且完全独立，除电源外不需要任何外部设备。该单元具有用于与外部GNSS接收机或其他NMEA源通信的集成RS-232端口、允许RF信号的5ns时间传输精度的外部1PPS输入，以及具有集成天线负载的GPS L1 RF输出连接器，用于需要DC天线负载才能正常工作的GPS接收机。
通过RS-232端口自动检测和配置外部GNSS接收器，如Rockwell SAASM接收机和uBlox GNSS接收机。模块本身可以通过USB端口进行监测、编程、控制和调整，通过新的免费软件SimCon应用程序，使用GPSCon或任何标准串行终端从我们的支持网页下载。
特点
- 嵌入式NMEA实时转换为L1 GPS
- 将传统GPS升级为GNSS、SAASM、M-code、INS
- 添加可选的CSAC保持功能
- 1.6 x 2.3 x 0.5英寸，1.1W
- 低成本通用GPS仿真
- GPS欺骗和干扰仿真
- USB、RS-232、接口
- 5V USB或7V至36V直流电源
- 与罗克韦尔柯林斯RSR SAASM Puck兼容的外形、贴合度和功能
- GPS周数滚动模拟或偏移以绕过遗留GPS错误
- Leapsecond模拟
- 高动态仿真
- 5ns定时，通常定位精度低于1m
技术参数
| Module Specification: | |
| Applications: | l Retrofitting legacy GPS systems with SAASM, M-Code, CSAC-Holdover, Glonass, Galileo, BeiDou, or Inertial Navigation System l 10-channel GPS simulation for manufacturing of GPS receivers, especially timing-related GPS l Low-Cost general-purpose Laboratory GPS-Simulation for R&D |
| Features: | l Generates a GPS L1-C/A code RF-output as if the signal where coming from a Live-Sky GPS antenna. Full-constellation GPS output l Compatible to SAASM receivers (L-3, Rockwell Collins, and others) l Low-latency NMEA position to GPS RF-Output encoding (<100ms) l Encodes time with nanosecond accuracy for GPS Timing Receivers l 10MHz and 1PPS output, as well as 1PPS external ref. timing input l Built-In fully-functional optional CSAC GPSDO, or high-stability TCXO l USB-powered (3V to 5.8V), 1.2W, or single LiIon/LiPo cell l Optionally externally powered (7V to 36V) l Emulates antenna current for products that sense external antennae such as the Rockwell DAGR l Glue-less connection to Rockwell Collins RSR SAASM GPS Puck, and u-Blox GNSS receivers as the PNT reference via RS-232 port l Fully controllable via SCPI commands over the optional USB port l Provides power and initialization to external GNSS receiver l Plug-and-Play: just plug in power, and the module will start the simulation and RF-output by itself |
| Data/Power connectors | Mini-USB for power and SCPI, 12-pin 2mm Hirose for power and external GNSS |
| Built-in Inertial Navigation System | 9-degrees of freedom Accelerometer, Gyroscope, and Magnetometer INS |
| Outputs | One 3V CMOS 1PPS output, one 10MHz CMOS 3V output, disciplined by external 1PPS reference or internal CSAC Atomic Clock One RF SMA, GPS L1 C/A code, -100 to -125dBm |
| Spectral Purity (1MHz to 13.2GHz) | < -33dBc in-band (L1, +/-20MHz), < -80dBm out-of-band |
| Harmonics of L1 (1.57542GHz) | < -150dBm |
| USB Control | SCPI-99 Control at 9.6K, 19.2K, 38.4K, 57.6K, 115.2K |
| External GNSS receiver compatibility | Any NMEA compatible source, direct control of Rockwell Collins GB-GRAM and MicroGRAM SAASM GPS, and u-Blox GNSS receivers |
| USB SCPI Control/Monitoring Port | Compatible to any terminal program and JLT-GPSCon, NMEA output sentences |
| Operating Temperature | -40°C to +75°C with TCXO, -10 to +70C with CSAC |
| MTBF | > 600,000 Hours with TCXO |
