how to perform FFT on multivalued bit string?
1 view (last 30 days)
Show older comments
hi,
i have a bit string of size 560*1 of values 0 and 1 and some cells contains both 0 and 1 values.. now, i need to apply FFT on this bit string.. to do so, first i need to convert cell values to double values by making use of Cell2mat function (bcz FFT function can be applied on double values only).. so, i used cell2mat function and i applied fft on it... i got wrong results... i.e., if a cell in bit string contains [0,1] ,then after using cell2mat function the values 0 and 1 are being splitted and size of bit string is being increased...
code for binary string :
new_len = 576;
old_len = length(a);
mapped_index = 1 + mod((1:old_len) - 1, new_len);
b = accumarray( mapped_index(:), a(:), [new_len 1], @(L) {unique(L.')} ) .';
B1=cell2mat(b);
b2=B1';
i got error: undefined function fft for input arguments of type cell...
Can anyone help me with this..
0 Comments
Answers (1)
Walter Roberson
on 27 Mar 2017
"Can anyone help me with this.."
No. There is no defined meaning for taking the fft of a many-to-one mapping.
Taking the Discrete Fourier Transform (fft) of a bit-string is questionable itself.
0 Comments
See Also
Categories
Find more on Fourier Analysis and Filtering in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!