Frequency agility mode is widely used in modern radar. Traditional algorithms often result in the increasing batch in signal sorting. This algorithm estimates the frequency of received signals with high precision firstly. The results can be got by dividing the frequency differences of two adjacent signals. Within a certain range, the signals from different radars are sorted by comparing the fractional part of the results. According to the signals from the same radar, frequency dividing coefficients are estimated by the same way. Finally, reference frequency can be gained. Simulation results show that this algorithm can sort the signals from frequency agility radar effectively. And, it can restrain the increasing batch in the signal sorting and recognize the specific emitters accurately.
YANG Jian， LIU Yu， DI Hui.
Research on the Algorithm of Signal Sorting and Reference Frequency Estimation of Frequency Agility Radar. Acta Armamentarii. 2013, 34(12): 1506-1513 https://doi.org/10.3969/j.issn.1000-1093.2013.12.004
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