System object: comm.OSTBCEncoder
Package: comm

Encode input using orthogonal space-time block code


Y = step(H,X)




Y = step(H,X) encodes the input data, X, using OSTBC encoder object, H. The input is a complex-valued column vector or matrix of data type double, single, or signed fixed-point with power-of-two slope and zero bias. The step method output, Y, is the same data type as the input data. The time domain length, T, of X must be a multiple of the number of symbols in each codeword matrix. Specifically, when you set the NumTransmitAntennas property is 2 or the SymbolRate property is 1/2, T must be a multiple of two and when the SymbolRate property to 3/4, T must be a multiple of three. For a time or spatial domain input of T rows by one column, the encoded output data, Y, is a (T/SymbolRate)-by-NumTransmitAntennas matrix. The input matrix size can be F rows by T columns, where F is the additional dimension (typically the frequency domain) over which the encoding calculation is independent. In this case, the output is an F-by-(T/SymbolRate)-by-NumTransmitAntennas matrix.


