Device and method for emulating a moving object in a radio frequency (RF) channel

A device for emulating a moving object in a radio frequency, RF, (RF) channel, the device comprising

• a receive terminal for receiving an RF signal;
• a tunable delay circuit for delaying the RF signal in accordance with a range indication associated with the moving object;
• a tunable attenuation circuit for attenuating the RF signal in accordance with a cross-sectional area indication associated with the moving object;
• a processor circuit for determining a Doppler frequency shift in accordance with a velocity indication associated with the moving object and a plurality of micro-Doppler frequency shifts associated with the moving object;
• a tunable frequency shift circuit for frequency-shifting the RF signal in accordance with the Doppler frequency shift associated with the moving object, and for applying the plurality of micro-Doppler frequency shifts to the RF signal such that the micro-Doppler frequency shifts generate sidebands about a Doppler-shifted frequency of the RF signal;
• and
• an antenna array for transmitting the RF signal via the RF channel in accordance with an azimuth indication and an elevation indication associated with the moving object.