Acquisition process by analog signal sampling, and an acquisition system to implement such a process

The invention concerns an acquisition process by analog signal sampling. This process is of the type comprising the operations of high-speed analog signal sampling, storing the samples in a matrix of memory cells, and re-reading the cells at low speed. It is characterized in that two identical memory devices are provided in each memory cell, where one sample of an analog signal is stored in one memory device, and one sample of that signal taken more or less out of phase is stored in the other device. The invention is applicable for high depth and high sampling frequency blocker samplers.