A signal processing device and signal processing method

Abstract

The invention discloses a signal processing device and a signal processing method. The device is based on an FPGA platform and includes a receiving module and a transmitting module. The receiving module receives and converts a plurality of first input signals, and processes the converted first input signals performing frequency reduction and screening to form a plurality of first output signals, the receiving module sends the plurality of first output signals to the transmitting module; the transmitting module receives a plurality of second input signals, and the transmitting module up-converts the plurality of second input signals obtaining a plurality of second output signals; and superimposing the second output signals of the same type in the plurality of second output signals to obtain a plurality of third output signals; and obtaining the third output signals of the same type in the plurality of third output signals superimposing the output signals to obtain a plurality of fourth output signals; and upconverting the plurality of fourth output signals to obtain a plurality of fifth output signals; and converting the plurality of fifth output signals to obtain corresponding terminal output signals .

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a signal processing device and a signal processing method. Background technique [0002] Signal frequency conversion processing includes digital up conversion (Digital Up Convert, DUC) and digital down conversion (Digital Down Convert, DDC). DUC is to convert the baseband signal into an intermediate frequency after interpolation and filtering, and DDC is to reduce the intermediate frequency signal to the baseband frequency after extraction and filtering. DUC is a process in which multiple carrier signals are synthesized into beam signals, and then beam signals are synthesized into cellular signals. DDC is a process in which cellular signals are decomposed into beam signals, and beam signals are decomposed into carrier signals. [0003] Therefore, in the process of signal frequency conversion processing, communication equipment usually separates and extracts ...

AI Technical Summary

Problems solved by technology

At present, most communication devices can only separate and extract cellular signals or beam signals one by one, but in practical applications, communication devices will receive multiple cellular signals or beam signals at the same time, and each beam signal contains multiple carrier signals. The communication device cannot separate and extract multiple cellular signals or beam signals at the same time, nor can it classify and superimpose multiple carrier signals at the same time.

When processing a large number of signals, the transmission channel of the signal is prone to congestion and the work efficiency is low

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