Abstract: Frequency agile terminal guidance radar effectively improve the anti-interference ability of the weapon system. Through the analysis of the current testing techniques and construct test platform by using generic equipment and achieve metrological verification of the frequency agile signal source. The system adopted two difference frequency to form intermediate frequency difference detection method to guarantee the precision of instantaneous frequency measure. But the system put forward the innovative single pulse draught frequency excitation test technology, which use the general test instrument to achieve the frequency agile parameter test and it pushes frequency agility measurement technology round to the engineering application stage for the first time, which can avoid the measurement system itself second times measurement problem.

Key words: Frequency agile, Instantaneous frequency measure, Signal source, Calibration system