双混频时差系统时间间隔分辨力校准方法研究

提出了双混频时差系统时间问隔分辨力的两种校准方法——频偏法和时差拟合法。给出了校准方法的理论推导，两种方法均基于时间差的测量，通过不同的数据处理方法可得到准确度较高的时间间隔分辨力。实验表明，该方法能够准确测量双混频时差系统的时间间隔，验证了方法的有效可行。

Study of Calibration Method for Time Interval Resolution in DMTD System

The two methods of frequency deviation and time differences fitting, which are used to calibrate the time interval resolution in dual mixer time difference system (DMDT), are proposed. The theoretic introductions are given. The two ways are based on measurement of time differences, and by using different data process methods, highly accurate measurement results are getten. It is shown through experiments that the time interval resolution can be measured accurately by the both methods in DMTD System. Then it is verified that methods are efficient and feasible.