| 摘要 |
<p>The invention relates to a digital multi-channel system for processing radio signals, in particular of the very wide band type, comprising modular electronic means (34, 35) for the analogue-to-digital, or A/D, conversion of one or more intermediate frequency, or IF, radio signals, and for the subsequent digital frequency conversion of the sampled signals from IF to one or more basebands, said electronic means comprising one or more printed circuit boards, or PCBs, (42) for A/D conversion and one or more PCBs (45) for digitally processing digital signals, each of which comprises a FPGA device, said one or more A/D boards (42) and said one or more FPGA boards (45) being connected to each other in cascade. The invention also relates to a radio astronomic receiver equipped with a digital multi-channel system of this type.</p> |
