Community Profile Active since 2014

Professional Interests: Wireless Communication

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Question

How can I solve overdetermined sets of non-linear equation?
Actually I have 3 variables and non-linear equations are at least 8. Is LMFnlsq.m or LMFsolve good for it?

mer än 5 år ago | 2 answers | 0

### 2

Question

In solving equation using 'solve', I tried to change the constant part by a small value say 0.1. But, If I change the value by 0.1 the solution is completely different and far away from the exact solution. Is there any solution?
syms x y z a = (sqrt((x-SatPos(1,1))^2+(y-SatPos(1,2))^2+(z-SatPos(1,3))^2)==Dis(1)); b = (sqrt((x-SatPos(2,1))^2+(y-Sat...

mer än 5 år ago | 1 answer | 0

### 1

Question

I tried to add noise with randn function but its not filtered by butter filter. How to add high frequency noise in a .wav audio so that I can filter it with butterworth filter?
%Butterworth filter design n=10; wn=0.4; [a b]=butter(n,wn,'low'); %Reading Audio Signal [Data,fs,nbits] = wavread(...

mer än 6 år ago | 0 answers | 0

### 0

Question

How can I plot in 3D with three different size vector?
Actually I have a=[-2 -1.5 -1 0 1 1.5 2]; b=1:16368; c=1:16368; I used plot3 and stem3 but it requires vector of eq...

nästan 7 år ago | 1 answer | 0

### 1

Question

When I calculate exp(3.8566e5*1i) and exp(data*1i) answers are different why? Here, data=3.8566e5
>> Data Data = 3.8566e+005 >> exp(1i*3.8566e5) ans = 0.6076 + 0.7942i >> exp(1i*Data) ans = 1.00...

nästan 7 år ago | 2 answers | 0

### 2

Question

How to save the data changed in GUI table?
Suppose I have a table with 3*3 matrix and If I changed the elements of a matrix in editable table how can I store the changed d...

ungefär 7 år ago | 1 answer | 0

### 1

Question

If a fft of vector x is plotted then what would be the x-axis?
x=rand(1:1000)>0.5; X=fft(x); X_mag=abs(X); plot(x_mag) There would appear 1000 values in x-axis , is it frequency o...

ungefär 7 år ago | 2 answers | 0