| 摘要 |
The invention concerns a digital signal transformation method, original samples (x2i ; y1 2i) of the digital signal being transformed into output samples (y1 2i, x2i), any output sample being calculated by a function of original samples, and/or of intermediate samples (t2i+1, v2i, t1 2i, v 1 2i+1), and/or of output samples, characterised in that: - each function is broken down into elementary operations ; - the elementary operations of all the functions are ordered so that the number of samples necessary simultaneously is a minimum. The invention makes it possible to minimise the memory space necessary to calculate the transformation. |
