Question


for loop of vector
Hello, i have a function shown bellow called fun, i want to sample it in a 10.^-6 - 20*10.^-6 interval with 1000 samples as sho...

más de 1 año ago | 1 answer | 0

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Question


rftoobox gain stability plots on smithchart
Hello, i have the following S2P file shown bellow,i found realy not enough examples for implementing rftoolbox avalible gain cir...

más de 1 año ago | 0 answers | 0

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answers

Question


creating continues ZOH plot from samples using sinc
Hello, i have an array of dots called y_in created by the code bellow. How using sinc function we create a continues signal of ...

más de 1 año ago | 0 answers | 0

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Question


error plotting smithchart by MATLAB manual
Hello i am trying to follow the steps in this manual https://www.mathworks.com/help/rf/examples/designing-matching-networks-par...

más de 1 año ago | 0 answers | 0

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Question


touchstone file could not be processed in matlab
Hello , I have created a touchstone in cadence virtuoso of two port system(i have renamed it in txt so i could upload it here) b...

más de 1 año ago | 1 answer | 0

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Question


converting csv file into s2p
Hello , I have a csv file representing s11 s21 s12 s22 S-param's i have extracted from cadence virtuoso simulator. each s-param...

más de 1 año ago | 0 answers | 1

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answers

Question


avarage running time problem
Hello, i want to calculte an avarage running time amongst all 100 iterations. for some reason my avarage running time is astr...

casi 2 años ago | 1 answer | 0

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Question


loosing precision extremely in fraction expression
Hello i have a two numbers (D1 D2) which are extremly close to each other very close,but when iput them into the formula shown b...

casi 2 años ago | 1 answer | 0

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Question


matlab code pc independant runtime question
Hello, i have a matlab code,each PC has a different computation power,even using Matlabs tic toc we get the time code ran given ...

casi 2 años ago | 0 answers | 0

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Question


loop causes enlargement of array
Hello, my theta vector 2X1 two values needs to be updated each itteration. instead i get theta to be size 1000 (as the number o...

casi 2 años ago | 1 answer | 0

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answer

Question


python to matlab [1,x] form question
Hello ,there is a trick in python to turn every matrices of NX2 into an NX2 matrices where the first column is all '1' as shown...

casi 2 años ago | 1 answer | 0

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Question


matlabs polyfit not working correctly problem
Hello, i have a vector called "mean_vec" which consists of 81 values of " -0.1175 -0.1181 "-0.1175 -0.1194 -0.1197 ...

casi 2 años ago | 1 answer | 0

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answer

Question


regress function itterations number
Hello, is there a way to know hoe namy itterations regress function made to reach its oprimal solution? Thanks.

casi 2 años ago | 0 answers | 0

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Question


zero padding between data
Hello, i have a vector shown bellow, how do i insert two zeros in between every bumber as shown bellow. Thanks. a=[1,2,3,4] a...

casi 2 años ago | 1 answer | 0

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answer

Question


aliasing in frequency domain problem
Hello ,i am trying to show frequency domain transform of 3 sinuos signal.I samples it twice the frequency of the highest frequen...

casi 2 años ago | 1 answer | 0

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answer

Question


polar reflection coefficient to impedance gamma2z question
Hello, how do i input the polar reflection coefficient shown bellow into gamma2z with z0=50? Thanks

casi 2 años ago | 0 answers | 0

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Question


mvregress itterations and error definition
Hello, i am trying to estimate a 100X1 vector using 100X2 matrices (B is 2X1 ) B is my coeficient solution. Howeer there is a p...

casi 2 años ago | 0 answers | 0

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Question


FIR filter sampling question
Hello, what is the meaning of fc/fs ? i cant see the logic of defining a signal in that way? Thanks

casi 2 años ago | 0 answers | 0

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Question


understanding cycle sample expression
Hello , I cant understand the logic in this expression "cycles/N = fx/fs" N is number of samples fs- frequency if the whole...

casi 2 años ago | 0 answers | 0

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Question


problem defining linear regression condition
Hello, i have built the first code( the top one which uses matlabs regress command to aproximate [m10;m5] (NX1) vector with [r...

casi 2 años ago | 0 answers | 0

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Question


multiple line plot inside a loop
Hello,I have built linear regression algorithms. but i cant see the final reult onle as shown bellow. is there a way to plot t...

casi 2 años ago | 0 answers | 0

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Question


extracting data from a picture of a chart
Hello, is there a way in Matlab to extract the data vector of the chart from this picture,for example the bottom one? Thanks. ...

casi 2 años ago | 1 answer | 0

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answer

Question


randn command variance problem
Hello, i am trying to create a randomly distributed temperature where the avarage is 310 and variance is 4. I wrote the followi...

casi 2 años ago | 1 answer | 0

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Question


double regression interpretation with vectors
Hello when we enter the following vectoric line shown bellow, we get result B=[b1,b2] so how do i interpret the approximated v...

casi 2 años ago | 0 answers | 0

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Question


solving double equation with random data with regress
Hello,i am trying to find the best values of "eT" and "e" for m5 and m10 equations. I ran the following code, i assume the by d...

casi 2 años ago | 1 answer | 0

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answer

Question


regress with vectors arguments
Hello,i know that in regress we make an estimation of our data using some other vector. In here We have estimation of two data ...

casi 2 años ago | 1 answer | 0

1

answer

Question


solving simple multy variable expression
I have built a simple expression where we can see that its solution t-Vs=1 for some reason the only solution it gives me is t=1...

casi 2 años ago | 1 answer | 0

1

answer

Question


solve an exponential equation with 2 variables(view combinations)
Hello, i am trying to solve the following equation shown bellow, by solution i mean to find all the combinations of R2 and Vs2 t...

casi 2 años ago | 0 answers | 0

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Question


2D oplimization plot from derivative inverse function
Hello, for x=1 i have a formula as shown bellow which is a derivative inverse function: I need to plot an optimization ...

casi 2 años ago | 0 answers | 0

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Question


derivarite of inverse of complex function
Hello , i have a function as shown bellow syms x Y=1./(log(x)-1) fplot(finverse(Y),[5,6]) We have made an inverse by using ...

casi 2 años ago | 0 answers | 0

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