高性能导航增强测试信号模拟器技术研究

杨俊++陈建云++明德祥++邢克飞++魏统

摘 要：高性能导航增强测试信号模拟器集中反映了国家卫星导航系统建设与应用的技术水平，课题涉及导航卫星轨道高精度仿真、导航信号精密生成、载波相位精确控制和传输误差仿真等许多高精尖技术，是国际卫星导航领域争夺的战略制高点之一，其性能水平将直接影响我国卫星导航终端产品参与国际市场竞争的能力。随着我国北斗二代卫星导航系统建设和应用产业化的推进，测量型、高动态型、抗干扰型等用户终端检测已经成为我国GNSS高端用户终端研制与应用的瓶颈难题。国外一直将高端高性能导航增强测试信号设备作为制约我国卫星导航系统建设和发展的重要手段并一直对我国禁运。研究具有独立自主知识产权的高性能导航增强测试信号模拟器及标校技术，有利于提升我国卫星导航系统的国际竞争能力，促进我国卫星导航终端产品研制水平，加速我国导航设备示范应用产业化进程具有极其重要的意义。课题从研究途径来看可以划分为多体制和高性能两个关键点，其中“多体制”是实现多星座多体制卫星导航信号和地面导航增强信号仿真；“高性能”是要在既有信号模拟技术基础上进一步突破高精度模拟的性能瓶颈；最后为了充分发挥检测系统的测试作用，提高系统可用性，需要研究相关测试理论及实现技术。研究涉及的算法模型与技术包括多体制高性能GNSS模拟器数学仿真技术、精密信号时延控制与高质量信号生成技术、高精度高动态GNSS射频信号模拟技术、GNSS仿真信号高精度校核与可信度评估技术等。

关键词：多体制导航信号模拟源 增强测试信号模拟器 增强信号模拟与测试

Abstract： High performance navigation test signal simulator reflects the construction and application of satellite navigation system technology in national. The project involved high precision of navigation satellite orbit simulation， precision navigation signal generation， carrier phase precision control and transmission error of many advanced technologies such as simulation， is one of the strategic high ground for international satellite navigation field. Its performance level will directly affect our competition ability of satellite navigation terminal products in the international market. With the advancement of construction and application of Beidou-II satellite navigation system， measurement， high dynamic state， anti-jamming and etc. user terminal detections have become the GNSS high-end bottleneck of the development and application on the user terminal. Foreign countries use their high-end high-performance navigation test signal equipments to restrict our satellite navigation system construction and development， also the equipments are embargo to us. The research has independent intellectual property rights of high performance navigation signal simulator test and calibration technology is helpful to improve China's satellite navigation system of the international competition ability， promote the satellite navigation terminal product development level in our country， accelerate the development of navigation equipment demonstration application industrialization has extremely important significance. Topics from the point of research approaches can be divided for system and high-performance two key points， in which "multi-system" is to achieve more sign system and the ground navigation satellite navigation signal enhancement signal simulation； "High performance" is to further breakthrough in both the signal simulation technology based on high precision simulation performance bottlenecks. Finally， in order to give full play to the testing system of testing effect， improve the system availability， we need to study related testing theory and implementation technology. Research involved more than algorithm model and the techniques include high-performance GNSS system simulator mathematical simulation technology， precision signal time delay control and high quality signal generation technique， high precision， high dynamic GNSS radio frequency signal simulation， simulation of GNSS signal high accuracy checking and credibility evaluation technique， etc.

Key Words： The multi-system navigation simulation signal source； The test signal enhanced simulator； Simulation and test of enhancing signal

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