Device and method for digital TV radio frequency signal collection

Abstract

The embodiment of the invention discloses a digital TV radio frequency signal acquisition device and method. Wherein, a digital TV radio frequency signal acquisition device is characterized in that it includes: an antenna, a down converter, an analog-to-digital converter, a communication interface unit, a system-on-chip SOC constructed based on a field programmable gate array FPGA, and a system connected to the SOC Cache and flash memory; Among them, the down-converter is used to down-convert the digital TV radio frequency signal received by the antenna to obtain an analog intermediate frequency signal and output it; the analog-to-digital converter is used to convert the analog intermediate frequency signal output by the down-converter into digital The signal is output; the SOC is used to package the digital signal to obtain a digital signal data packet, and send the obtained digital signal data packet to the upper computer through the communication interface unit. After the deployment of the digital TV radio frequency signal acquisition device 100 with the architecture provided by the embodiment of the present invention, it is beneficial to save a lot of manpower, material resources and time.

Description

technical field [0001] The invention relates to the technical field of digital television, in particular to a digital television radio frequency signal acquisition device and method. Background technique [0002] With the rapid development of information technology, terrestrial digital video broadcasting has become the mainstream of today's broadcasting and television development. At present, most provinces and cities in China have launched terrestrial digital video broadcasting. Compared with analog TV broadcasting, terrestrial digital video broadcasting has the advantages of higher frequency spectrum utilization efficiency, better image quality transmission, and can provide a variety of value-added services. And it can realize mobile and portable reception, which is conducive to meeting the requirements of "information to people" in modern society. [0003] Among them, for digital video broadcasting operating in the UHF (Ultra High Frequency) frequency band, the radio wav...

AI Technical Summary

Problems solved by technology

This signal propagation method is usually more susceptible to factors such as terrain, buildings, tides, and networks.

Under the influence of these factors, the signal fading and interference in some areas become more complicated. In this special signal environment, even if the signal coverage is good, the digital video broadcasting receiver may not be able to receive normally.

[0004] At present, when a digital video broadcasting receiver fails to receive normally, the operator will report the situation to the digital video broadcasting receiver designer, and the digital video broadcasting receiver designer will send engineers and technicians to the site to solve the problem, but This approach to problem solving can be time-consuming, labor-intensive and material-intensive

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