maxxkatt
Forum Supporter
It is no secret that our US Navy had/has probably the very best underwater signal processing systems in the world.
What I read many years ago that our Navy recorded the audio signature of every ship and submarine that the navy encountered and recorded it. These along with very sophisticated software were used on Digital Equipment Corp (DEC) mini computers in the submarines and in a matter of a few seconds or minutes they could match up any sound they were currently listening to in the submarine to the specific ship that matched the sound. It appears that it is impossible to make two identical ships that make the identical sound signature.
Keep in mind none of this info came from official sources, I just read about it somewhere many years ago.
The systems are likely more effective even now.
And yes our modern metal detectors do use signal processing software and chips and yes we can with say the CTC3030 have the detector compare signals to good and bad targets to either accept or reject those targets. Not perfect, but pretty darn good in my opinion.
What I read many years ago that our Navy recorded the audio signature of every ship and submarine that the navy encountered and recorded it. These along with very sophisticated software were used on Digital Equipment Corp (DEC) mini computers in the submarines and in a matter of a few seconds or minutes they could match up any sound they were currently listening to in the submarine to the specific ship that matched the sound. It appears that it is impossible to make two identical ships that make the identical sound signature.
Keep in mind none of this info came from official sources, I just read about it somewhere many years ago.
The systems are likely more effective even now.
And yes our modern metal detectors do use signal processing software and chips and yes we can with say the CTC3030 have the detector compare signals to good and bad targets to either accept or reject those targets. Not perfect, but pretty darn good in my opinion.
