ELINT - Recognizing Advanced Radar Signals

Learn more at www.radar-engineer.com.
An overview of how to recognize the signal characteristics of some advanced radar waveforms using the 89600B Vector Signal Analysis software. This includes frequency modulated continuous wave, Barker codes, Frequency Shift Keying (FSK), Costas codes, and spot jamming.
Learn more at www.radar-engineer.com.

[@tanviralam8073]

Thank you

[@rfengr00]

Nice video. What is the delay plot? Phase change per sample, since the y axis units are MHz?

[@KyleDavidson]

Louis Brown It is the rate of change of phase with respect to time: d(phi)/dt.
If you're looking to calculate it in MATLAB for some set of samples in the time domain, we'll call that variable y, the equation becomes: delay = diff(unwrap(angle(y)))*fs/(2*pi)

[@sbreheny]

Shouldn't delay be d(phi)/d(f)? The units on d(phi)/dt are inverse seconds, which is not delay. That being said, I'm not sure what sense of the word delay is being used here. Usually delay refers to the d(phi)/d(f) of a filter, in which case you would be looking at d(phi)/d(f) of the impulse response of the filter. In the case of a radar signal, there is probably a relation between the radar ambiguity function and d(phi)/d(f) but I actually think your "delay" plot here is simply frequency, since it shows a ramp for FMCW and steps for FSK.

[@zerobow9413]

sims eghhhhh get some real RADAR`s