Binary to Signed decimal in MATLAB

Hello,

I have a 64x1 workspace variable,where each value is of 16 bits.

I need to convert each of them into signed decimal value, which would span the entire range of signed 16 bit numbers from -32768 to +32767.

I tried bin2dec() but it provides only an unsigned value.

Kindly help.

[Friedrich]

How the values are stored? Is it two's complement (so sixteen 1 would be -1) or the classy way where sixteen ones would be -32768?

Can you give us one example and the value you expect?

[Aparna]

Hello,

thanks for replying!

-32768 = 1000000000000000 , in our code.

We used the following line while converting into binary from decimal

k=dec2bin(typecast(int16(-32768),'uint16'))

Thank you for ur help

[Aparna]

Basically, it is two's compliment conversion.

Answer 1

[Friedrich]

Hi,

can't you simply do the inverse way to get it back? Or am I missing something here?

typecast(uint16(bin2dec('1000000000000000')),'int16')

[Titus Edelhofer]

;-)

Answer 2

[Titus Edelhofer]

Hi,

then I guess the other way round should do the trick as well:

typecast(uint16(bin2dec('1000000000000000')), 'int16')

Titus

Answer 3

[Aparna]

@ friedrich, Thanks a lot :)