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# Fundamental Period

17 Threads found on edaboard.com: Fundamental Period

## Fundamental Period of the Signals

Hi, I have two questions. 1) See the picture 124236 124237 Here, in order to find fundamental period we divide the argument of the function by 2π. Like in (a)cos(0.01nπ) so the answer is f=0.01π/2π= then T=1/f=200. But in (c) cos(3πn) the answer is T=2. Why?

## School Bell Sound Circuit

The gong itself rings at a certain fundamental frequency, say 1 or 2 kHz. It has a clanging quality which is due to the presence of non-harmonic overtones (meaning they are not exact multiples of the fundamental frequency). It is struck by the clapper many times per second, say 10 or 20 Hz. I think you'll need to combine several sine waves, then

## periodic discrete and continuous time signals

I read in a book that discrete time signals are periodic 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 periodic property (...)

## How do we know that the omega is equal to 2pi/19?

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 periodic, 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.

## How to find out the fundamental period for 2 discrete waveforms?

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:

## How can measure the angle degree of sinusoidal signal

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.

## Autocorrelation & pitch detection

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

## DT signal fundamental period?/ DT system stability?

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## Spectre pss & pac difficulties for SC filter.

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

## Doubt regarding sine wave - its form,shape and oscillations

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

## Stepper Motor theory - need a theory to prove it

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

## fundamental period for DT seq x[n]=cos(pi* (n)^2 / 8 ) ?

Hi friend, i replyed your message on the group and i will rewrite it here again; Regarding your qestion which was the fundamental period of cos(pi . n^2/8), I see if wee add N to n as followes: pi/8^2 = pi/8 (n^2+2nN+N^2) pi/8^2= pi n^2/8 + pi 2 n N/8 + pi N^2/8 now according to your result that is the minimum fundamental p

## How can I calculate the period of this signal?

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

## Fourier Series Oppenheim

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

## How to determine if the equation is a periodic signal?

Note that For a discrete-time signal to be periodic 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 periodic it has to satify x(t+T)=x(t) where T is the fundamental period and there is no r

## compute graph sequence

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

## Find fundamental period using stem function

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