PHD theses : Engineering

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    Jamming on ground based radar
    (Al Neelain University, 2014-05) Mahmoud Yahia Hussein
    Electronic warfare (EW) is of great importance to both military and civil goals. It contains three general domains : Electronic support (ES) Electronic Attack (EA) involves measures taken to defeat enemy's electronic assets, and finally Electronic protection (EP) against enemy's electronic attack. The two latest ‘domains are considered as essential ones that seem to be always in competition. Electronic counter measures and electronic counter-counter measures are the two latest domains are considered as essential ones that seem to be always in competition. Similarly, Radars without electronic counter-counter measures are inefficient in spreading in the sensitive zones. In this research, the radar jamming is an example of electronic counter measures. Radar jamming is considered as the interference among the frequency of radio signals depending on radar work through the saturation of receiver with noise and false information. In addition, we used in this study barrage jamming technique to jam x-band radar fiequency. To accomplish this goal it's proposed to design a circuit using ATmegal6 Microcontroller, two X- Band motion detectors, LCD and Digi's X-CTU sofiware. In this design one of the x-band motion detector module is considered as a radar and the second x-band motion detector as jarnmer circuit which uses Doppler fiequency principle and generates 10.5 GHZ frequency. When the jammer circuit is activated against radar operation (x-band module) and compared the frequencies of x-band radar before and afier activate the jammer, It's found the reading of X-band radar frequencies are affected. It's noted if the jammer module is near from radar module the effect will increase and vice versa. Finally, from the results obtained out of this research it can be deduced that the radar operation could be successfully jammed by using the jamming barrage technique.