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have a doubt reg checking DT periodic sequence: x=cos(pi* (n)^2 / 8 ) it is periodic 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 (...)
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:
the scaling in the time in the angular frequency never hampers the periodicity it just alters the fundamental period of the signal that is cos t is periodic and also cos 2t is periodic both have only 1 difference that is their fundamental period differs in both the case (...)
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
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
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
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
Is x = cos periodic. If yes, find its period The answer given is: periodic. period =8 How to solve this problem? since ω=2Πf assume signal is cos wn so f=1/8 since f is expressed as the ratio of 2 inteer so it is periadic we have the condition of periodicity f=k/N where N is (...)
If you cascade self-multipliers you can get the higher order tones but I think you will be hard pressed to keep them in the phase you'd like, across a wide / high frequency range. You would want the natural delay through the multipliers to be much, much less than the fundamental period (few degrees, more like) if you want to see a pretty squ
Why does autocorrelation function approach zero at the fundamental period of a 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.
Need help here what is the fundamental period for sinπt??? I got it down to T=6/(2n-1) and i am confuse from here on :(
Well if you're just simulating, then it should be a matter of getting the raw data and dumping it into matlab, then doing an FFT. Or you could build the simulation entirely in matlab. Try to make sure that either the duration of the sampled data is an exact integer multiple of your fundamental period, otherwise you'll end up with an incorrect resul
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 (...)
Hi everyone. Hoping someone has the time to explain this to me. After taking an N-point FFT, I'm left with the Fourier Coeff's of each frequency bin and can calculate the fequency with a little math. No problem. But if I try to reconstruct the original signal, it always seems to be shifted in frequency. Will someone please help me understand?
Hi, one way is to sample a lot of data (2^n) and perform an FFT. find the fundamental frequency. calculate it´s amgnitude. Then find all harmonics (overtones) to the fundamental frequency (upto the upper specified frequency), and add them up. Now divide (sum of harmonics) / fundamental to get THD. Klaus
Thanks. Sorry for the confusion. Those statements are from Cadence tutorial. Here is the page: I have read some articles about PSS analysis and here is my understanding relating to fundamental frequency. Take an example of an circuit including two sources, source1 900MHz and source2 10M
I want to measure th etime period between two signals ( rst and cs ) my FPGA is connected to push button switch (sw) to initialize the counter with zero and also connected to 7 segment to display the results My design uses a counter signal ranges fro 0 to 1048580 -------------- my code is below : -------------- library IEEE; use IEEE.std_lo
Hi, I need to measure period of a waveform which varies from 300ns to 5us. Suggest options for FPGA or any other simple ways. Thanks and regards Itp
hai anyone can suggest me a good website contain info about fundamental in electronic tq...
IF you use a cystal under 30Mhz , the cystal will work at fundamental mode. IF the frequence larger than 30Mhz, the crystal have to work at overtone model. the circuits for cystal of fundametntal mode and overtone mode is difference!
The period is 1 second, duty is 10%(100ms). How to design such square wave osc and integrated on one chip? Thank you
Who can tell me the solution of the fundamental of Power electronics?
Hi, The calculator toll from spectre has a built in THD function which you will find if you selectthe RF option or in the "Special functions" menu. In order to use this function you have to perform a transient simulation for at least 20 periods of the input signal and then select the waveform on which you want to evaluate the distorsions, in inp
oh yeh you are rite...stupid i am... just dun realize the fundamental stuff..
I am looking for some fundamental material on Orbit Perturbations Thanks
Can any one help to solve: The time to failure of a certain product is a continuous random variable with probability density function:(given in attchment) Where t is time to failure in years The manufacturer of that product is considering to offer a warranty; however they are willing to replace only 1% of all the products they sel
Hai Guys: If I have a two tone at 200MHz and another at 201MHz, with LO frequency of 3.5GHz, what are the values of the fundamental tones and IM product tones for: 1. IP(3,1) 2. IP(3,2) 3. IP(5,1) 4. IP(5,2) I hope you can guide me in calculating this values. Thank You Rgds
Hi,Everyone, I Need some fundamental text about FORCE and Newtons Law so on. Pls let me know some link or uplaod ebook here. Thanks, Isuranja
take hi i m writing a verilog code on that 1 controle signal should be there which will active after 16 clock cycle and only for one clock period.This control signal is used for select line of that MUX will select value from x(suppose) up to 16 clock cycle after that it will select value from how
I have defined a net "a" as period 12ns in UCF file, This "a" net is not a clock net direct coming from a clock PAD or DCM, but is a mux output from several clock options, such as DCM clock output; clk PAD; clock divided from DCM output, etc. I insert a bufg before the net "a", and declare it as a TNM_NET. Because I have active frequency switch f
Hi, I am learning timing analysis, and came to this question. would appreciate if you can confirm my thought/learning. thanks. since Thold <= Tmindelay + Tclktoq, I concluded that Thold requirement does not influence operating frequency at all. Is this correct ? :oops: I do think clock skew can induce hold violation, because
I use FFT for processing audio data. I was find 1 frequency for 1 point. How we can find the fundamental frequency?. Is the highest Amplitudo? or what...?
i need to do 2 tone test for LNA , i am doing HB simulation for 2 tones but i don't know how to find out the intercept point of 'fundamental' and '3rd order harmonic'........can anyone help me ? Please it is urgent ......
Can the period of a periodic function be complex.
So suppose i have a LC tank with a cap of size 1 F . and a inductor of size 1 H. they are place in parallel. I feed in a pulse of current through an ideal current source. I've drawn the picture in the uploaded jpeg. The output voltage osscillates for exactly 1 period. (I've simulated it in spice). The voltage goes close to 0 afte
Hi everybody !!! I want to run or open a file or a program in a periodically. (eg: I mean that a file will run in every an hour period.) How I can do that. I don't want to use next software to do that. Zaw
hi,all i am doing the simulation of a RC oscillator, in Nanosim . i want to know how i can measure the period of the clock output exactly in the turboWave . i have tried the TurboWave user manual ,but didn't get the answer . thanks for your help !
hi,all i am doing the simulation of a RC oscillator, in Nanosim . i want to know how i can measure the period of the clock output exactly in the turboWave . i have tried the TurboWave user manual ,but didn't get the answer . thanks for your help !
Elektor magazine UK edition issue july/august 2004 has a circuit like you want. With a 10 MHz crystal and using a 74HC04 and some notch and high-pass filters, it can multiply the frequency by 9, obtaining 90MHz @ +13 dBm. Each stage of inverters and filters rejects the fundamental signal generated by a a squarewave oscillator and the high-pass
Solutions for the Alonso Finn fundamental University Physics??? Thank you
Putting the timing constraint as 1.8 ns I did synthesis and PnR. the Design Compiler, Encounter successfully did SPnR. There are no violation in Primetime reports. But when I run my post synthesis design in modelsim at this clock period, I get $ recovery errors. I can only run my design at 2.4 ns clock period correctly. Can anyone explain me
Hi What amount of baud rate error may be acceptable for a long time-period on an RS232 serial port? In an earlier project, I have used 1% but it has worked rearly. the connection was faulty. after that, I had to replace the microcontroller's (PIC16F877) crystal to a "baud-rate-quarz". then it has worked fine. Now, I cannot replace th
Can someone provide fundamental theory & design of Xtal oscillator ? Thanks a lot.
Hii for a D flipgflop, if the input is changing in latching period .... the output is ambiguous now most of the time ... input signal given to FF is frm external circuitary ... How shud v control input signal so tht this FAULT is avoided ... in other words ... do v hac to consider this issue also ??? i will put it in other way ... tw
How can I determine the settling period of an Opamp/OTA? How is it dependent on the 2nd dominant pole of the amp? I have read the paper by C.T. Chuang "Analysis of the Settling Behavior of an Operational Amplifier," JSSC, Feb 1982, the analysis given in this paper is fairly complex to work on amplifier for a given range of settling time that can
hi it is stated here that in a QPSK system the highest fundamental frequency present at the data input to the I or the Q balanced modulator is equal to one-fourth of the input data rate how could this be true? although it is stated also that "the bit rate in either the I or the Q
Electrons are fundamental or quarks?in study of electronics?
here you can find the lecture notes and some exams which can be useful to learn more on fundamental of