Military Communications and Information Technology: A Trusted ...

Chapter 1: Concepts and Solutions for Communications and Information Systems
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receiver R&S EM510/550. Currently final solution is developed on DSP/FPGA
board which cooperates with wideband fast tuning receiver.
RCIED jamming system model will have one receiving (two band) and one
transmitting (three band) antenna (Fig. 2). A receiving block is composed of two
tuners intended for constant spectrum monitoring over multiple frequency band.
Tuners, with wide-band IF filters and DSP/FPGA board perform discrimination and
identification of signals [1][9]. After detection, jamming is started on a frequency
band, where the trigger signal was detected. It is performed by the jammer block,
consisted of three exciters (Fig. 3), amplifiers and two sets of collocation filters.
Jamming signals are transmitted in frequency bands: 20÷500 MHz, 500÷1000 MHz,
1÷6 GHz, as a:
• single tone sweep or narrowband noise sweep;
• narrowband or wideband barrage noise;
• prepared signals from a controller’s memory.
Figure 2. Scheme of reconnaissance-jamming system model
Figure 3. Scheme of exciter (jammer) model