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What advanced technology does the TV station optical transceiver use?

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release date: 2020-02-25 source; author;
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At present, the development momentum of my country's communication network is very strong, so the application of TV station optical transceivers now has a wider and wider range. For example, the transmission of long-distance video and data in industries such as highways, electric power, and remote video is usually performed by such optical transceivers. To be done. This requires the use of advanced technology in TV optical transceivers. So, what advanced technologies are used in reasonably priced TV stations' optical transceivers?

电视台光端机使用了哪些先进的技术?

1. Digital multiplexing technology


In order to improve the utilization rate of the transmission medium, reduce costs and increase effectiveness, the TV station optical transceiver adopts digital multiplexing technology, including time division multiplexing technology and optical wavelength division multiplexing technology. That is, in the data transmission system, two or more data resources are allowed to share the same common transmission medium, just like each data source has its own channel. Therefore, through the use of digital multiplexing technology, the TV station optical transceiver It is possible to combine several unrelated signals into a composite signal that can be transmitted on a common channel.


2. Bit synchronization technology


Bit synchronization is a very important technology used in TV station optical transceivers. The use of this technology can make the bit synchronization pulse frequency of the receiving end and the symbol rate of the sending end the same, and it can also make the receiving end respond to the receiving end at the right moment. The symbols are sampled and decided. It can be sampled and judged at the middle position of the symbol, and when it is properly received, it is sampled and judged at the end of the symbol. In the optical transceiver of the TV station, the baseband signal is transmitted, so the extraction of the bit synchronization signal is carried out directly in the baseband signal, without involving the frequency band signal.


Whether it is digital service technology or bit synchronization technology, it is the advanced technology adopted in the optical transceiver of the TV station. It is precisely because the stable TV station optical transceiver uses these advanced technologies, it has good stable performance during use, can ensure stable signal conversion, and provide long-distance video and data transmission in various industries. Favorable conditions.


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