Question about single tone signals

  • Thread starter Thread starter mazen_zone
  • Start date Start date
  • Tags Tags
    Signals
AI Thread Summary
The discussion centers on the bandwidth of single tone signals, specifically cosine signals. It is noted that the Fourier Transform of a cosine signal results in delta functions at the signal's frequency, suggesting that its bandwidth is zero since it occupies only a single frequency in the frequency domain. Participants agree that an infinite tone indeed has zero bandwidth. Additionally, it is acknowledged that delta functions appear at both positive and negative frequencies. Therefore, single tone signals are characterized by having zero bandwidth.
mazen_zone
Messages
17
Reaction score
0
what is the bandwidth of single tone signals?

taking the F.T. for a cosine signal gives a delta at the signal's frequency, so does it mean that its bandwidth is zero since it is occupying only a single freq. in the FD.
 
Engineering news on Phys.org
mazen_zone said:
what is the bandwidth of single tone signals?

taking the F.T. for a cosine signal gives a delta at the signal's frequency, so does it mean that its bandwidth is zero since it is occupying only a single freq. in the FD.

You get deltas at both the positive and negative frequencies, right? And yes, I believe it would be correct to say that an infinite tone has zero BW.
 
Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
View full post »

Thread 'EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)'

Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
View full post »

Similar threads

Why does increasing the message bandwidth decrease the FM bandwidth?
Replies
5
Views
1K
Is my understanding of the Nyquist theorem correct?
Replies
4
Views
2K
Composite signal generation IC in DIFAR Sonobuoys
Replies
11
Views
2K
Wavelet transform (CWT and DWT)
Replies
4
Views
2K
Resistance, capacitance, inductance of a real wire
Replies
2
Views
2K
AM, FM modulation, sidebands question
Replies
15
Views
4K
How to decompose a signal into its contributory signals
Replies
14
Views
4K
Harmonics, Interferences, Autocorrelations, FFT
Replies
7
Views
2K
Digital Electronics: Image Frequencies & Nyquist/Shannon Theorems
Replies
7
Views
4K
Signal Speed Below the Speed of Light for Circuit Abstraction
Replies
8
Views
2K

Hot Threads

Recent Insights

Back
Top