create a time vector

hello,i have an example which is in following file,i need to answer of this question to the improve my homework,i will be happy if someone help me,thank you

Answer 1

[Star Strider]

A 10 kHz sampling frequency has a sampling interval of:

Fs = 1E4;                                           % Sampling Frequency (Hz)
Ts = 1/Fs;                                          % Sampling Interval (sec)

With that hint, I leave the rest to you.

[fernando alveri]

thank u sir for answer,i'm dealing on my question and i think,a and b are done but i havent any idea about c and d t=(0:0.01:2); x=2*sin(2*pi*100*t)+cos(2*pi*500*t); randn('state',0); y=x+0.4*randn(size(t)); plot(t(1:100),y(1:100)) plot(t(1:500),y(1:500)) can you check it for me pls?

[Star Strider]

Look up the definition of the Dirac delta function to do those. Remember, it has an area of 1, so I would define it as having a duration of one time step (since you are dealing in a discrete — not continuous — system), and then figure out from that what the amplitude should be.

Note that ‘c’ and ‘d’ differ only in where the delta function is plotted. Everything else stays the same.