MATLAB: How to convert decimal into binary

Question

if a =
-5932.62103114252
5931.17666698258
5797.34103035393
-6358.78042353988
-12430.1210180646
-9849.27324380255
-6386.88118380371
7783.15716000243
5177.38696737792
6082.47763148202
-4816.43707738488...........

of size 1000X1 double how to convert it into binary of same length as 1000X1 for modulation and to transmit

Answer 1

http://www.mathworks.co.uk/matlabcentral/answers/54323-converting-decimal-value-to-binary#answer_66022

http://www.mathworks.co.uk/matlabcentral/answers/52067-real-number-to-it-s-binary-form

http://www.mathworks.co.uk/matlabcentral/answers/68896-how-to-convert-a-16-bit-or-64-bit-signed-floting-point-to-binary