高性能導航增強測試信號模擬器技術研究

楊俊++陳建云++明德祥++邢克飛++魏統

摘 要：高性能導航增強測試信號模擬器集中反映了國家衛星導航系統建設與應用的技術水平，課題涉及導航衛星軌道高精度仿真、導航信號精密生成、載波相位精確控制和傳輸誤差仿真等許多高精尖技術，是國際衛星導航領域爭奪的戰略制高點之一，其性能水平將直接影響我國衛星導航終端產品參與國際市場競爭的能力。隨著我國北斗二代衛星導航系統建設和應用產業化的推進，測量型、高動態型、抗干擾型等用戶終端檢測已經成為我國GNSS高端用戶終端研制與應用的瓶頸難題。國外一直將高端高性能導航增強測試信號設備作為制約我國衛星導航系統建設和發展的重要手段并一直對我國禁運。研究具有獨立自主知識產權的高性能導航增強測試信號模擬器及標校技術，有利于提升我國衛星導航系統的國際競爭能力，促進我國衛星導航終端產品研制水平，加速我國導航設備示范應用產業化進程具有極其重要的意義。課題從研究途徑來看可以劃分為多體制和高性能兩個關鍵點，其中“多體制”是實現多星座多體制衛星導航信號和地面導航增強信號仿真；“高性能”是要在既有信號模擬技術基礎上進一步突破高精度模擬的性能瓶頸；最后為了充分發揮檢測系統的測試作用，提高系統可用性，需要研究相關測試理論及實現技術。研究涉及的算法模型與技術包括多體制高性能GNSS模擬器數學仿真技術、精密信號時延控制與高質量信號生成技術、高精度高動態GNSS射頻信號模擬技術、GNSS仿真信號高精度校核與可信度評估技術等。

關鍵詞：多體制導航信號模擬源 增強測試信號模擬器 增強信號模擬與測試

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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