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- == Signal Energy and Power Calculations == The energy of a signal within specific time limits is defined as:655 B (97 words) - 15:50, 4 September 2008
- == Signal == The signal used was <math>cos(3t)</math>.569 B (88 words) - 13:55, 4 September 2008
- <math>x[n]=</math><math>j^{n}</math> is a discrete time (DT) periodic signal. It's period is 4*k, where k is an integer. However, it's fundamental perio <math>x[n]=\cos{n}</math> is an example of a non-periodoc signal because there is not integer value for n such that <math>x[n+N]=x[n]</math>883 B (143 words) - 07:24, 14 April 2010
- Compute the Energy and Power of the signal <math>x(t)=\dfrac{2t}{t^2+5}</math> between 3 and 5 seconds.966 B (143 words) - 14:42, 4 September 2008
- Power of the equation <math>e^{-2t}u(t)</math> is 0 because the energy of the signal is < ∞329 B (60 words) - 14:39, 4 September 2008
- == Energy of a Signal== == Power of a Signal ==536 B (79 words) - 15:09, 4 September 2008
- ==Signal Energy and Power== Define a signal (either CT or DT) and compute its energy and its power. Post your answer on2 KB (248 words) - 13:04, 5 September 2008
- A continuous time signal x(t) is periodic if there exists T such that x(t + T) = x(t) for all t. <br A discrete time signal x[n] is periodic if there exists some integer N such that x[n + N] = x[n] f1 KB (192 words) - 07:28, 14 April 2010
- Energy of a Signal: <math>E = {1\over(t2-t1)}\int_{t_1}^{t_2} \! |f(t)|^2 dt</math> Power of a Signal: <math>P = \int_{t_1}^{t_2} \! |f(t)|^2\ dt</math>896 B (142 words) - 16:54, 4 September 2008
- [[Category:signal]] Given complex signal <math>f(t) = \cos(t) + j \sin(t)</math>, find <math>E_\infty</math> and <ma4 KB (734 words) - 15:54, 25 February 2015
- Definiton: A DT signal x[n] is called periodic if there exists an integer N such that x[n+N]=x[n] Example: sin[n] is not a periodic DT signal because we need a value on N such that sin(n+N)=sin(n) for all n. Every pos835 B (141 words) - 07:26, 14 April 2010
- I will calculate the energy expended by the signal <math>sin(2t)</math> from <math> t = 0 </math> to <math> t = 8\pi </math> -819 B (140 words) - 17:25, 4 September 2008
- % data = digital signal, Fs = Frequency, nbits = number of bits per sample<br>2 KB (268 words) - 17:27, 4 September 2008
- A Continuous Time signal is said to be periodic if there exists <math>\ T > 0</math> such that <math A Discrete Time signal is said to be periodic if there exists <math>\ N > 0</math> (where N is an1 KB (221 words) - 12:21, 5 September 2008
- The definition of a periodic DT signal is that there exists an integer N such that <math>x[n+N] = x[n]</math> for On the other hand, <math>cos(n)</math> is not a periodic signal because there is no integer that is multple of <math>2\pi</math> and is an656 B (115 words) - 06:13, 5 September 2008
- Suppose a signal is defined by <math>cos(t)</math> Suppose we want to compute the energy of the signal <math>cos(t)</math> in the interval <math>0</math> to <math>2\pi</math>.1 KB (199 words) - 20:14, 4 September 2008
- == Periodic Signal Definition == *For a Continuous-time signal1 KB (209 words) - 09:49, 5 September 2008
- '''''I chose to compute the energy and power for the signal f(t) = 3x.'''''574 B (97 words) - 05:11, 5 September 2008
- For a continuous-time signal <br> ...m_{T \to \infty} {\frac{E(\infty)}{2T}} = 0 ................ Finite-energy Signal</math><br>647 B (89 words) - 21:00, 4 September 2008
- == Signal energy == == Signal power ==726 B (122 words) - 20:45, 4 September 2008
- This is a discrete signal too.677 B (97 words) - 20:44, 4 September 2008
- Computation of Signal Energy and power. Source for definition Of Continuous Signal: Wikipedia.778 B (99 words) - 13:21, 5 September 2008
- ...e'' function, this is not the case. The definition for a periodic discrete signal is that there exists an ''integer'' <math>N > 0</math> such that <math>x[n1 KB (189 words) - 21:21, 4 September 2008
- == Signal ==1 KB (189 words) - 21:40, 4 September 2008
- ...rst signal is a triangular wave which has period of 10 seconds. The second signal is a bunch of noises. title('Periodic Signal');656 B (87 words) - 21:36, 4 September 2008
- ==Signal==1 KB (204 words) - 22:14, 4 September 2008
- == Signal Energy == Signal Energy expended from <math>t_1\!</math> to <math>t_2\!</math> for CT functi2 KB (295 words) - 06:34, 5 September 2008
- == For a Continuous Time Signal==788 B (127 words) - 12:34, 5 September 2008
- A periodic signal is one that for a given real number "a": ===Periodic Signal===1 KB (195 words) - 07:20, 14 April 2010
- Compute the Energy and Power of the signal <math>x(t)=\dfrac{2t}{t^2+5}</math> between 0 and 2 seconds.811 B (121 words) - 07:08, 5 September 2008
- ==Energy of a CT signal== ==Power of a CT signal==324 B (62 words) - 07:39, 5 September 2008
- The formula for the energy of this signal is given by: The power of this signal is 0 because the energy of the signal is not <math>\infty</math>267 B (48 words) - 07:53, 5 September 2008
- == The following signals are shown to be either an energy signal or a power signal == A consequence of this is that P=0. If the energy of the signal was infinite, then the power would be536 B (94 words) - 08:24, 5 September 2008
- A DT signal x[n] is called periodic if there exists an integer N such that x[n+N] = x[n A CT signal x(t) is called periodic if there exists an integer T > 0 such that x(t+T) =831 B (141 words) - 08:17, 5 September 2008
- Example of a periodic signal fundamental period of signal N=4960 B (171 words) - 07:13, 14 April 2010
- A signal is periodic if there exists some T>0 such that: A signal is NOT periodic if the converse is true, there DOESN'T exists some T>0 such688 B (106 words) - 07:08, 14 April 2010
- == Signal Energy == find the signal energy of <math>x(t)=e^{4t}\!</math> on <math>[0,1]\!</math>700 B (110 words) - 08:53, 5 September 2008
- frequencies are the same, to produce a new signal. This is not true, however, for the case of multiplication. If640 B (98 words) - 08:50, 5 September 2008
- Given the Signal x(t) = 4sin(2 * pi * 6t), Find the energy and power of the signal from 2 to 6 seconds.1 KB (193 words) - 09:32, 5 September 2008
- In CT let x(t)=e^[1+j2)t]=(e^t)×[cos(2t)+ jsin(2t)] is a non-periodic signal because there is no T for which x(t+T)= x(t). In this case the signals amp563 B (104 words) - 09:23, 5 September 2008
- In Signals and Systems we will most commonly see complex numbers in signal analysis. Complex numbers are broken down into sin and cosine wave form and583 B (93 words) - 09:35, 5 September 2008
- ...are most frequently encountered in Electrical Engineering in the field of Signal Analysis. In this field complex numbers are broken down to terms of sine an614 B (98 words) - 09:41, 5 September 2008
- =Signal Power= =Signal Energy=722 B (108 words) - 10:47, 5 September 2008
- == Discrete time periodic signal Example == [[Image:dts_ECE301Fall2008mboutin.png|200px|thumb|left|Periodic Discrete Time Signal]]575 B (98 words) - 10:58, 5 September 2008
- % wavread command converts the .wav file to the digital signal data x[n] %wavplay command makes us listen to the digital signal x[n]1,015 B (164 words) - 14:14, 5 September 2008
- The energy and power of a signal can be found through the use of basic calculus. For the signal y(t) from 0 to 10 seconds, with y = <math>7x^3</math>552 B (84 words) - 12:42, 5 September 2008
- ==Periodic Signal== A continuous time (CT) signal is periodic if it there exists some T such that x(t+T)=x(t) for all t.811 B (148 words) - 13:12, 5 September 2008
- ==Periodic Signal== to prove a CT signal is continuous we must prove that there exists a value T such that x(t) = x(388 B (84 words) - 13:37, 5 September 2008
- An example of a complex signal/system would be '''x = 10 + 12j''' We can test to see if our function\signal is periodic by '''<math>{\omega/ 2\Pi = rational number!}</math>'''1 KB (189 words) - 14:17, 5 September 2008
- Suppose the signal to be <math>x(t)=cos(5t)</math>.682 B (110 words) - 13:42, 5 September 2008