Abstract
The article deals with the problem of modelling radar blips by reproducing an echo signal of true targets to assess tactical characteristics of radars. A software-defined vector generator with incorporated computer and receiver is placed at given angular coordinates and at some distance from radar. The computer generates a digital representation of the waveform; the generator emits a signal corresponding in structure to the radar one. Trigger input of the generator obtains a signal on the period start coming from receiver and computer to ensure inter-period synchronization. The receiver obtains and processes pulses coming from radar. When the strength threshold of received signal is exceeded, the computer-controlled generator receives a signal informing that emitting of prepared echo template has started. As a result, the generator emits an echo signal from the given coordinates, which corresponds to the echo signal of the desired radar blip. The article discusses conditions for generating these blips and characteristics of simulated blips based on characteristics of the equipment used and the radars tested. The author also gives an example of calculating the characteristics of simulated radar blips.
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