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5th January 2017, 21:09 #1
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How to calculate standard deviation from the delay?
hi guys,
I am trying to calculate the unit vector and standard deviation of the signal. I hope everyone can give me ideas.
Here is my scenario:
I have 2 rx channels:  f is channel 1 with the length 1x256 complex, then FFT.  g is channel 2 with the length 1x256 complex, then FFT.  from f and g, I can calculate the spectrum density S_fg = f * conj(g), with the length 1x256 complex
Code:S_fg = f * conj(g) t_0 = 1 / f_0; r_0 = t_0 / (2 * pi); delay = angle(S_fg) * r_0 * 1e12; % in pico second d = median(delay);
The unit vector maybe calculated by the equation:
Code:x = 1*cos(delay); % 1x256 y = 1*sin(delay); % 1x256
Hope anyone can help?

5th January 2017, 21:09
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