Time delay calibration method of Loran C signal and high-precision Loran C signal simulator

The invention relates to a time delay calibration method of a Roland C signal and a high-precision Roland C signal simulator, after traceability deviation and signal time delay are calibrated, the starting moment of the Roland C signal generated by simulation can be kept synchronous with UTC (NTSC), and high-precision simulation of the Roland C signal is realized; according to the method, the signal time delay caused by the signal attenuator is calibrated by using the variable time delay correction model, a time delay correction table does not need to be established, the problem that accurate time delay measurement is difficult to perform by using measurement equipment when the signal attenuation is very large is solved, the implementation process is simple, and the operation is easy. 本发明涉及一种罗兰C信号的时延标校方法及高精度罗兰C信号模拟器，通过对溯源偏差和信号时延进行标校后，模拟产生的罗兰C信号起始时刻与UTC(NTSC)可保持同步，实现了罗兰C信号的高精度模拟；本发明利用可变时延修正模型对由信号衰减器所引起的信号时延进行标校，不需建立时延修正表，克服了信号衰减很大时难于使用测量设备进行准确的时延测量的问题，实现过程简单，容易操作。