convert matrix steps from 1 to 0.1
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Hello,
i got a task with 2 Signals. I need to plot them on the x axis with from 0 seconds to 0.1 seconds. (200000 data with a frequency of 10Khz)
i have no clue how to do that. I limited the x axis t o1000 data (value of 0 to 0.1 seconds) but the numbers are still incorect.
thanks :)
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回答 (2 件)
VBBV
2023 年 1 月 14 日
編集済み: VBBV
2023 年 1 月 14 日
If you are plotting 0 to 0.1 sec using 1000 data points, the you have to divide it by frequency, 10 kHz
data./10000
Instead of
data*10000
Which you are doing presently
2 件のコメント
VBBV
2023 年 1 月 14 日
Count of matrix elements are always in positive integers. Not in decimals or fractions. If you mean to divide a vector of values in 0.1 step increments then you can do
data./10
Star Strider
2023 年 1 月 14 日
L = 0.1; % signal Length (sec)
Fs = 1E+4; % Sampling Frequency
t = linspace(0, L*(Fs-1), Fs)/Fs; % Time Vector
format long
Ts = t(2)-t(1) % Sampling Interval
f = 10; % Signal Frequency
s = sin(2*pi*t*f); % Create Signal
figure
plot(t,s)
grid
xlabel('Time (s)')
ylabel('Amplitude')
.
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