need help in down sampling

[vjfaisal]

hi

if anyone knows some about the downsampling , please explain it to me....

Q: when we down sample our data, our original data could be lost or not???




regards

 

[atul_microwaves_antenna]

Data is not lost provided u obey Sampling theorm !!! Downsampling is multirate signal sampling you can say...
In any case either downsampling or up....u obey Sampling Theorm..so u can always recover the original signal..

 

[esfahanianboy]

you can check it in matlab using "resample" function

 

[Harshash]

has long has u obey nyquist sampling u will never loose any of ur information