An unknown contact is inbound on the airfield. Sweep the sector, pick the return you believe is the drone, hold it for three clean beam visits, then estimate its range and signed radial velocity. Finish the mission to unlock a sandbox where every radar and target parameter is yours to change.
Radar mission control
Radar mission
Search the assigned sector for an unknown contact.
Begin the search
Preparing the 3D airfield…
Range scale 10.0 km. Select a plotted contact or use the keyboard-operable table.
| Contact | Range | Radial velocity | Bearing | Signal | Action |
|---|---|---|---|---|---|
| No contacts in the current radar history. | |||||
Colour scale: navy (low), cyan (mid), amber (high) intensity.
Visual display gain only; does not change physical SNR.
Complete the mission to unlock waveform, environment, and target controls.
Only motion toward or away from the radar creates Doppler.
A pulse travels out and back at the speed of light, so the echo delay fixes the range. Pulse width sets how finely two echoes can be told apart, and the pulse repetition frequency sets how far you can look before an echo wraps around into the next listening window.
Only the part of the target motion along the radar line of sight shifts the echo frequency. Closing motion is positive here and receding motion is negative; a target crossing the beam broadside has almost no Doppler at all, however fast it is flying.
Received power falls with the fourth power of range and scales with radar cross section, so a 0.05 m² drone returns far less than an airliner. That echo has to beat thermal noise and clutter, which is why detections come and go near the edge of the display.
