Short-wave radio frequency digital processing module

A processing module and digital signal processing technology, applied in the shaping network, electrical components, transmission system, etc. and other issues, to achieve the effect of scalable and upgradeable capabilities, good consistency, and low cost

Inactive Publication Date: 2010-12-29
西安烽火电子科技有限责任公司
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Problems solved by technology

In the digitalization process of short-wave radio stations, the digital technology of its channels is particularly critical. The existing channel digital technology for short-wave radio stations is limited to the processing of intermediate frequency signals, and analog processing is still used above intermediate frequencies, so it is not a real software radio technology ( SDR) radio station, its disadvantage is that it does not support multi-waveform, multi-mode and multi-service, thus limiting the development and application of short-wave communication

Method used

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Embodiment Construction

[0030] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0031] figure 1 Structural and functional block diagram of the short-wave radio frequency digital processing module of the present invention, as figure 1 As shown, the shortwave radio frequency digital processing module includes a receiving radio frequency analog front end 10, a receiving radio frequency digital front end 20 and a transmitting sub-module 30;

[0032] The receiving radio frequency analog front end 10 is used to receive short-wave signals within the working frequency band, and meet the requirement of a large dynamic receiving range of short-wave signals, so as to obtain analog signals after filtering clutter interference outside the required working frequency band. The receiving radio frequency analog front end 10 further comprises a harmonic filter 11, a broadband low noise amplifier (wit...

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Abstract

The invention discloses a short-wave radio frequency digital processing module which mainly comprises a receiving radio frequency analog front end, a receiving radio frequency digital front end and an emission submodule, wherein the receiving radio frequency analog front end comprises a harmonic filter, a broadband low-noise amplifier with automatic gain control (AGC) and a low-pass filter; the receiving radio frequency digital front end comprises an analog / digital (A / D) conversion circuit, a digital down converter (DDC), a direct digital frequency synthesizer (DDS) and a digital signal processor (DSP); and the emission submodule comprises a digital / analog (D / A) conversion circuit, a digital up converter (DUC), a DDS and a DSP. The short-wave radio frequency digital processing module of the invention can simplify the design structure of a shortwave radio station, reduces the types of radio stations, improves the service life of the digital shortwave radio station, and reduces the input cost of users.

Description

technical field [0001] The invention relates to the technical field of radio frequency digital processing, in particular to a short-wave radio frequency digital processing module. Background technique [0002] The wireless electromagnetic wave frequency with a frequency range between 1.6MHz-30MHz is usually called the shortwave frequency band, which uses shortwave frequency for worldwide broadcast transmission for one-way communication, usually called shortwave broadcast; a radio that can receive a certain frequency above is called For short wave radio. The history of human beings using wireless communication including short-wave broadcasting is only about 100 years. However, after decades of development of wireless communication technology, a wireless communication network with satellite communication and mobile communication as the main symbol has been formed. . Since short-wave communication mainly relies on the back and forth reflection and refraction between the ionos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/10H04L25/03
Inventor 周勇敢谭文生刘俊杨少鹏王小军王博庞绅宇李林峰李阳
Owner 西安烽火电子科技有限责任公司
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