Pulsed FMCW Chirp Signal
The SynthHD line of RF signal generators from Windfreak Technologies can perform a pulsed FMCW chirp. This is done by first setting up an internally generated FM chirp (ramp). Deviation and rate are easily controlled in the FM tab of the supplied GUI. Since the SynthHD can run multiple concurrent modulations, it is possible to wrap a single chirp, or multiple chirps within an AM modulated pulse, such that the fast VCO return is muted. This is done in the Pulse Modulation Tab of the GUI software. A user can also possibly sweep chirped pulses. This operation can be memorized in non-volatile memory so the device can power up automatically performing this or other instructions.