The effectiveness of the jammer signal characteristics on conical-scan systems

Mehmet C. Şahingil; Murat Ş. Aslan

doi:10.1117/12.2177879

Abstract

Being passive systems and due to their proliferation to many regions in the world, the infrared (IR) guided missiles constitute probably the most dangerous threats for the aircraft platforms. Early generation surface-to-air and air-to-air IRguided missiles use reticle-based seekers. One of the IR countermeasure (IRCM) techniques for protecting aircraft platforms against these type of threats is to use a modulated jamming signal. Optimizing the parameters of the modulation is the most important issue for an effective protection. If the required characteristic is not satisfied, jamming may not be successful for protecting the aircraft. There are several parameters to define the jammer signal (modulation) characteristic. Optimizing them requires a good understanding of threat seekers’ operating principles. In the present paper, we consider protection of a helicopter platform against conical-scan reticle based seeker systems and investigate the effect of the jammer signal modulation parameters on jamming performance via extensive batch simulations. The simulations are performed in a MATLAB-coded simulator which models reticle-based conical-scan seeker, aircraft radiation, aircraft motion and jammer system on the aircraft. The results show that if the properties of the jammer signal are similar to those of the reticle-modulated signal in the missile, the jamming can be successful. Otherwise, applied jamming may not deceive the threat seeker.

Citation Download Citation

Mehmet C. Şahingil, Mehmet C. Şahingil, Murat Ş. Aslan, Murat Ş. Aslan, "The effectiveness of the jammer signal characteristics on conical-scan systems", Proc. SPIE 9478, Modeling and Simulation for Defense Systems and Applications X, 947805 (22 May 2015); doi: 10.1117/12.2177879; https://doi.org/10.1117/12.2177879

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