Broadband digital receiver and real-time frequency spectrum processing method thereof

A digital receiver and digital mixing technology, applied in electrical components, transmission systems, etc., can solve the problems of narrow real-time spectrum processing bandwidth and low spectral resolution, and achieve the effect of improving FPGA resource utilization.
CN103973324AInactive Publication Date: 2014-08-06UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF ELECTRONIC SCI & TECH OF CHINA
Publication Date
2014-08-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the field of digital signal processing, and particularly relates to a broadband digital receiver. The broadband digital receiver is used for solving the problem that an existing digital receiver is narrow in real-time frequency spectrum processing bandwidth and low in frequency spectrum resolution. The broadband digital receiver comprises an input end and an output end, and further comprises a first filter bank, an analog mixing module, a second filter bank, an analog-digital conversion module, a time-frequency transformation module and a frequency spectrum joint module, wherein the first filter bank is connected with the input end and the analog mixing module, the second filter bank is connected with the analog mixing module and the analog-digital conversion module, the time-frequency transformation module is connected with the analog-digital conversion module and the frequency spectrum joint module, and the output end is connected with the frequency spectrum joint module. The broadband digital receiver is suitable for the fields of electronic reconnaissance receiving, real-time frequency spectrum analysis, radars, communication and the like.
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Description

technical field

[0001] The invention belongs to the field of digital signal processing, in particular to a real-time frequency spectrum processing method for a wideband digital receiver. Background technique

[0002] Faced with an increasingly complex electromagnetic environment, new electronic reconnaissance receiving equipment needs to collect broadband signals and process spectrum in real time. Traditional receivers can no longer meet the needs of current electromagnetic monitoring. High-efficiency digital receivers have the ability of high speed, high sensitivity, large dynamic range, multi-signal parallel processing, and real-time processing of broadband signals, and have become a research hotspot in the field of electromagnetic monitoring.

[0003] The digital receiver can adopt software radio technology, and it is easy to complete the signal processing work that the traditional receiver completes in the analog domain in the digital domain. However, the commonly used ...

Claims

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