| 摘要 |
<p>The method is applied to a wideband signal resulting from summing communication signals which are spread by means of spread sequences specific to each of the communication signals and which sequences are offset relative to one another by a bit time segment, and it consists in affording a correlation of the signal received over a bit time according to linear combinations of the spread sequences, and is characterised in that the spread sequences are ordered according to ascending relative delays, a symbol time is determined covering each communication signal over at least one complete bit time, and a matrix of coefficients ( beta ij) for the linear combinations is compiled by forming a matrix representing the spread sequences having rows each representing one spread sequence for each bit of each communication signal included in the symbol time, by forming the product of this matrix and its transpose, by inverting the product matrix, and by selecting from the middle of the inverted matrix a rectangular matrix having a number of rows equal to the number (M, pM) of spread sequences represented over a complete bit time. <IMAGE></p> |
