| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise of ATI digitizers.SOLUTION: A splitter (102) is configured to split an input signal (104) into two split signals (106, 108). Two harmonic mixers (110, 112) are each configured to mix an associated split signal with an associated harmonic signal to generate an associated mixed signal. Digitizers (130, 132) are each configured to digitize an associated mixed signal. MIMO polyphase filter arrays (200, 202) are each configured to filter a digitized mixed signal of an associated digitizer (130, 132). Two pairs of band separation filters (206-210) are each configured to receive the digitized mixed signals from the MIMO polyphase filter arrays, and to output a low band and a high band of the input signal on the basis of a time different between the digitizers (130, 132) and a phase drift of a local oscillator. A combiner is configured to combine the low band and the high band of the input signal to form a reconstructed input signal (236).SELECTED DRAWING: Figure 4 |
