Cross-frequency-band power-line carrier communication system and communication method thereof
A technology of power line carrier and communication system, which is applied in the direction of distribution line transmission system, transmission system, digital transmission system, etc., and can solve the problem of low frequency spectrum utilization, limitation of broadband carrier communication distance, and insufficient use of high/low frequency signal transmission characteristics, etc. problems, to achieve the effect of increasing channel bandwidth and improving spectrum utilization
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[0047] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0048] Such as figure 1 Shown: the present invention provides an analog front end of a power line carrier machine utilizing "narrowband / broadband dual-channel combination". Among them, the narrowband channel frequency range extends from 30kHz-500kHz to 30kHz-1MHz, and the wideband channel frequency range extends from 2MHz-20MHz to 1MHz-20MHz. In this way, the amplification and processing of high / low frequency signals (such as image 3 shown), to obtain a cross-band power line carrier communication system with stable level output (such as Figure 4 shown).
[0049] details as follows:
[0050] The present invention provides a cross-band power line carrier communication system, which includes a power line carrier machine connected to the power line, and the power line carrier machine includes an analog front end, whic...
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