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## Fundamental Period |

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15 Threads found on edaboard.com: **Fundamental Period**

I read in a book that discrete time signals are **period**ic only if 'f' is a rational number. Why doesn't this rule apply for continuous time signals? For a continuous time signal x(t)=Acos(2πft) , let 'T' be **fundamental** **period**. Consider x(t+T) = Acos(2πf(t+T)) = Acos(2πft+2πfT)
By **period**ic property (...)

Digital Signal Processing :: 09-28-2013 11:07 :: KruthikaMithra :: Replies: **1** :: Views: **315**

You need to ask yourself what Omega means. It is not simply the angular frequency in the sin / cos term. The overall function x is **period**ic, as implied by the N=19, so you can come up with the **fundamental** angular frequency corresponding to this **period**, and it is 2*pi/19.

Electronic Elementary Questions :: 08-01-2012 21:53 :: gadly :: Replies: **1** :: Views: **364**

The greatest-common-divisor of f1 and f2 is the **fundamental** frequency; the least-common-multiple is the **fundamental** **period**.
I think the first example is what you're looking for:

Digital Signal Processing :: 07-08-2012 21:21 :: enjunear :: Replies: **1** :: Views: **2322**

I'd use the cross() calculator function looking for the right-sense
zero crossings, and do the arithmetic to turn time into degrees.
Timebase being the **fundamental** **period** of whichever phase you
call the master reference.

Analog Circuit Design :: 06-18-2012 11:54 :: dick_freebird :: Replies: **9** :: Views: **635**

Why does autocorrelation function approach zero at the **fundamental** **period** of a signal?

RF, Microwave, Antennas and Optics :: 03-25-2011 02:54 :: pushpanjali sharma :: Replies: **0** :: Views: **561**

dddddddddddddddddddddddddddddddddddddd

Digital Signal Processing :: 09-30-2010 00:40 :: gpffhdnzz :: Replies: **0** :: Views: **636**

hi
Also I have the above problem.
Why there is not any newer version of "simulating switched-capacitor filters with spectreRF" document for spectreRF2008?
In the above doc the netlist defines only the **period** and maxacfreq; while in specreRF there are so more parameters required, for example "**fundamental** tones" and beat frequency simultaneusly. A

Analog IC Design and Layout :: 05-17-2010 10:53 :: ahmadagha23 :: Replies: **2** :: Views: **1510**

As you could see in
Illustrating the sine wave's **fundamental** relationship to the circle.
on wikipedia...
Its actually a plotting over the circle
consider r=sinΘ
now for all different values of Θ you will get different values of r..
now if you had to plot r versus Θ.. then one convenient way is to plot values of r (as

Electronic Elementary Questions :: 02-27-2010 09:29 :: akshay_d_2006 :: Replies: **3** :: Views: **756**

Hi guys, i just recently succeeded with functioning stepper motor with PIC and UCN5804B, so i just did a **fundamental** test on stepper motor by pumping in different speed in the coding, but with 50% duty cycle. So i tried with 16ms **period** until 1.5 ms **period**, so 16 ms makes the motor slow and 1.5 ms makes it fast. i
understand how

Electronic Elementary Questions :: 04-10-2009 07:18 :: stefano.delfiore :: Replies: **2** :: Views: **1006**

have a doubt reg checking DT **period**ic sequence:
x=cos(pi* (n)^2 / 8 )
it is **period**ic ofcourse, but in the solution manual its **fundamental** **period** is mentioned as 8.
but i got **fundamental** **period**=N=(2*pi/ omega )
in this case, N= (2*pi / (pi/8) ) = 16.
does anybody know (...)

Digital Signal Processing :: 03-28-2009 01:43 :: rramya :: Replies: **10** :: Views: **12215**

Your ECG signal has very low amplitude at the **fundamental** frequency, so a plain FFT would give you poor info.
It would be better to apply some sort of non-linear filter to it first, such as computing fft(ECG_1 > 0.5) instead of fft(ECG_1).
This example shows the first strong spectral peak at about 1.23 Hz. Zoom in to see it:
clear;
lo

Digital Signal Processing :: 09-29-2007 06:16 :: echo47 :: Replies: **23** :: Views: **9712**

Ok, I located the example problem. Frankly, I dont understand your question. Are you speaking about Figure 3.7?
The figure explains the effect of different **fundamental** **period** T of the rectangular pulse. If T = 4T1, meaning, the rectangle pulse lying in the origin extents from -2T1 to 2T1 and if T = 8T1, then same lies between -4T1 to 4T1.
In

Digital communication :: 06-02-2007 14:56 :: cedance :: Replies: **4** :: Views: **1610**

Note that
For a discrete-time signal to be **period**ic it has to satisfy
x=x where N is the **fundamental** **period** and the condition on it is that it should be an integer.
For a continuous-time signal to be **period**ic it has to satify
x(t+T)=x(t) where T is the **fundamental** **period** and there is no r

Electronic Elementary Questions :: 02-17-2006 02:34 :: purnapragna :: Replies: **3** :: Views: **29059**

Hi all,
i am new to Matlab.Could anyone help me to generate and plot the below 3 sequences using Matlab "stem" function
qn1) What should i define in my script?
qn2) how do i obtain the **fundamental** **period** by just observing the graph?
x1=sin(0.6Пn+0.6П)
x2=sin(0.68Пn)
x3=3sin(1.3Пn)-4cos(0.3Пn+0

Digital Signal Processing :: 01-17-2006 04:20 :: scdoro :: Replies: **0** :: Views: **628**

Hi all,
i am new to Matlab.Could anyone help me to generate and plot the below 3 sequences using Matlab "stem" function What should i define in my script?
x1=sin(0.6Пn+0.6П)
x2=sin(0.68Пn)
x3=3sin(1.3Пn)-4cos(0.3Пn+0.45П)
thanks alot
regards
scdoro

Digital Signal Processing :: 01-16-2006 09:46 :: scdoro :: Replies: **2** :: Views: **2426**

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