Serg io
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On 3/22/2017 10:58 AM, Kaiinken Aki wrote:
> Serg io wrote:
>
>> by "SIGNAL" do you mean moving electrons ? it is not accellerating
>> and deaccellerating right? is that what you mean ? so you are
>> discribing a ramp function, an increasing dump of electrons into an
>> antenna. They do some of that in some jamming equipment.
>
> You can't dump electrons into an antenna, idiette.
sure you can,
buy a new 9 Volt battery, (new ones are full of electrons), and place it
on your tongue for 10 min, have a friend help you.
then get a pair of tweezers and pick off the electrons you need from the
battery, and dump them onto your antenna.
>
>> If you can describe the shape of the signal, voltage or current vs time,
>> (even for just a bit) I can calculate the frequency content.
>> they are two domains, time domain vs frequency domain.
>> if you are using time in some way, you got frequencies.
>> one uses a "transformation" between the two.
>> The following are some most common transforms, and the fields in which
>> they are used:
>> Fourier series – repetitive signals, oscillating systems Link
>> Fourier transform – nonrepetitive signals, transients Link Laplace
>> transform – electronic circuits and control systems Link Z
>> transform – discrete signals, digital signal processing Link
>> OR if you are talking about an EM wave emitted by the antenna, it has a
>> frequency, or a range of frequencies.