access icon openaccess Research on pulse compression radar angular glint modelling and suppression

The target angular glint is the main factor restricting the tracking accuracy of radar at close range. There are few researches on angular glint of pulse compression radar. Here, the angular glint model of the large aerodynamic target under pulse compression is proposed. The field measured data verify the validity of the model. Second, a frequency-diversity algorithm based on gating weighting is proposed to suppress angular glint. Simulation results show that its performance is better than the traditional frequency diversity algorithm. Third, the influence of total frequency hopping bandwidth and number of hopping on the frequency diversity algorithm is discussed. Finally, the algorithm proposed here has been applied with the existing experimental prototype. The outfield experiments show that the algorithm can suppress angle glint noise effectively.

Inspec keywords: electromagnetic wave scattering; radar cross-sections; radar signal processing; aerodynamics; frequency hop communication; military radar; radar resolution; target tracking; pulse compression; radar tracking

Other keywords: target angular glint; total frequency hopping bandwidth; aerodynamic target; frequency-diversity algorithm; angle glint noise; traditional frequency diversity algorithm; angular glint model; pulse compression radar angular glint modelling

Subjects: Signal processing and detection; Radar and radiowave systems (military and defence); Radar equipment, systems and applications; Military detection and tracking systems; Radar theory

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