Question

how can i analyze a signal with three coordinates

i have a signal from an accelerometer with 3 coordinates x,y, z. how do i analyze this signal so i have all three cordinates? D...

ungefär 12 år ago | 2 answers | 0

Question

How can i write the frequency vector for frequency range 5-400 hz using 50 frequncy points

How can i write the frequency vector for frequency range 5-400 hz using 50 frequncy points

ungefär 12 år ago | 2 answers | 0

Question

how is a Shock response spectrum estimated

How can i calculate the shock response spectrum from a time data in matlab. I have an acceleration signal. I have no idea

ungefär 12 år ago | 1 answer | 0

Question

input arguments of type 'double'.

Hi I am running a function with a .mat file and i get the response that the function is not defined for input argument of the ...

ungefär 12 år ago | 1 answer | 0

Question

View a surface plot from the top

I want to view a surface plot from the top and i used view(0,90) but still can see the plot except i rotate it. please i would l...

ungefär 12 år ago | 4 answers | 1

Question

scaling for periodic signal using hann window

How can i scale for periodic signal using hann window. i know for flattop i.e 1/sum(window)but i do not know how to scale with ...

mer än 12 år ago | 1 answer | 0

Question

Hanning Window

Why is the Hanning window function best for random signal analysis?

mer än 12 år ago | 2 answers | 0

Question

why is the magnitude of a window 1?

Why does windows generally have a magnitude of 1?

mer än 12 år ago | 2 answers | 0

Question

Magnitude of a filter

Why does filters generally have a magnitude of 1?

mer än 12 år ago | 1 answer | 0

Question

fft scalloping or window effect

why is the magnitude higher in the plot below without using the flattop window than when it is used. I thought the flattop windo...

mer än 12 år ago | 5 answers | 0

Question

integration

I want to integrate an RPM signal, how do i integrate it? It is an n*m matrix. I use matlab version R2010b.

mer än 12 år ago | 2 answers | 0

Question

average

i have a 42*16384. how do i average it so that i get a new matrix of size 42*2048 (if N=2048 represents one revolution and N=163...

mer än 12 år ago | 1 answer | 1

Answered

Difference in continuous wavelet transform & Continuous fourier transform

The matlab CWT is discrete wavelet transform and it has orthogonal wavelet functions. But the nonorthogonal is not discrete CWT...

Difference in continuous wavelet transform & Continuous fourier transform

The matlab CWT is discrete wavelet transform and it has orthogonal wavelet functions. But the nonorthogonal is not discrete CWT...

mer än 12 år ago | 0

Question

plot3

how do a plot3 of a wavelet tranform showing time, scale and wavelet coefficients

mer än 12 år ago | 3 answers | 0