Difference between revisions of "Dictionary:Bandwidth"

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<b>1</b>. The range of frequencies over which a given device is designed to operate within specified limits. <b>2</b>. The differences between half-power points, i.e., the frequencies at which the power drops to half the peak power (3 dB). <b>3</b>. The <b>effective bandwidth</b> is  
 
<b>1</b>. The range of frequencies over which a given device is designed to operate within specified limits. <b>2</b>. The differences between half-power points, i.e., the frequencies at which the power drops to half the peak power (3 dB). <b>3</b>. The <b>effective bandwidth</b> is  
  
<center> &#x222B; <sub>0</sub><sup>&#x221E;</sup>(''p''(''f'')''df'')/(''p''<sub><sub>max</sub></sub>);</center>
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<center><math>\frac{1}{p_{max}}\int^{\infty}_{0}{p(f)df} ;</math></center>
 
 
  
  
 
where ''p''(''f'') is the power at the frequency ''f'' and ''p''<sub><sub>max</sub></sub> is the maximum power. It is the width of a boxcar with the same total power and the same peak power. <b>4</b>. The rate at which a computer resource can carry (accept or deliver) data. Usually expressed in bytes per second or bits per second.
 
where ''p''(''f'') is the power at the frequency ''f'' and ''p''<sub><sub>max</sub></sub> is the maximum power. It is the width of a boxcar with the same total power and the same peak power. <b>4</b>. The rate at which a computer resource can carry (accept or deliver) data. Usually expressed in bytes per second or bits per second.

Revision as of 21:46, 17 September 2013

1. The range of frequencies over which a given device is designed to operate within specified limits. 2. The differences between half-power points, i.e., the frequencies at which the power drops to half the peak power (3 dB). 3. The effective bandwidth is


where p(f) is the power at the frequency f and pmax is the maximum power. It is the width of a boxcar with the same total power and the same peak power. 4. The rate at which a computer resource can carry (accept or deliver) data. Usually expressed in bytes per second or bits per second.