Multi-channel digital down conversion system with data backtracking function and down conversion method
A technology of digital down-conversion and digital down-conversion, which is applied in the field of multi-channel digital down-conversion systems, can solve problems such as complex delay control methods, inconvenient application of digital down-conversion systems, and lack of data storage and data backtracking functions, etc., to achieve The effect of increasing application flexibility
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[0035] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.
[0036] Such as figure 1 As shown, a multi-channel digital down-conversion system with data backtracking function includes a signal orthogonal module, a sub-band conversion module, a serial-parallel conversion module, a switching array module, a storage array module, and a low-speed multi-channel digital down-converter;
[0037] The signal orthogonal module is used to convert the input signal into two orthogonal signals, and the output end of the signal orthogonal module is connected to the subband conversion module; the subband conversion module is used to convert the two orthogonal signals The bandwidth is converted into multiple subbands with the same bandwidth to reduce the sampling rate. The output end of the subband conversion module is connected to the ...
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