How to convert a .txt file of 16 bit binary values into signed 16bit integers

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Samuel Wiest
Samuel Wiest 2021-7-8
评论： Samuel Wiest 2021-7-8
I have a .txt file of 16 bit binary numbers. However, the numbers are stored as bytes seperated by spaces, ex. 00001111 00001111 11110000 11110000 are the decimal numbers 3855 and 61680. I want Matlab to read the text file, removing every other space to form seamless 16bit binary numbers. I then want these 16bit binary numbers to be converted into signed 16 bit integer using signed 2's compliment.
I know that I can use fopen and fileread to read the numbers from the file, but I don't know how to remove every other space to form seamless 16bit binary numbers. I am also not sure how to properly convert from 16bit binary (signed 2's compliment) to signed 16 bit integers.
I have included an example .txt file. The decimal representations of the numbers are 2, 64, 128, and 2048.
Any help regarding what functions/algorithms to use is greatly appreciated.

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采纳的回答

Simon Chan
Simon Chan 2021-7-8
A=readcell('Binary.txt');
B = strsplit(A{:},' ');
C=reshape(B,2,[])';
D=cellfun(@(x,y) horzcat(x,y),C(:,1), C(:,2), 'UniformOutput', false);
E=int16(bin2dec(D));
E =
4×1 int16 column vector
2
64
128
2048
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Kapil Gupta
Kapil Gupta 2021-7-8
I assume you want to know how you can deal with 16 bit values. The following MATLAB Answers link has a similar query, you can check this out:
https://uk.mathworks.com/matlabcentral/answers/112181-writing-a-16-bit-binary-file

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