Abstract:

To solve the problem existing in the sorting of the radarsignals under the high-signal-density and complex electromagnetic environment in the ARM, a new method of achieving sorting the radar-signals is presented. Using the coherent processor to pre-sort radar signals. In the main sorting, the modified PRI transform is used to measure the PRI of radar-signals. In the hardware, a method called non-uniform setting the width of PRI-box is put forward, which can save much running time of the algorithm to enhance the real-time performance of the system. The experimental results show that this sorting method has the advantages of high speed and preciseness, which both solves the sub-harmonic problem in the past histogram statistical method and overcomes shortcomings existing in the traditional PRI algorithm which cannot effectively sort jitter pulse trains.