Short-wave four-channel photoelectric conversion interface unit

Abstract

The invention provides a short-wave four-channel photovoltaic conversion interface unit which comprises a photovoltaic conversion module, a digital signal processing module, two radio-frequency preprocessing modules, a power module and a standard frequency module. The photovoltaic conversion module converts an optical signal into a high-speed difference electric signal, the digital signal processing module converts the high-speed difference electric signal and outputs four paths of radio-frequency signals, the standard frequency module provides a clock frequency needed by the digital signal processing module, each radio-frequency preprocessing module comprises two amplifying channels and amplifies the four paths of radio-frequency signals by 20dB, the digital signal processing module is provided with outward control interfaces which have control over an transmitter rear selector, a power amplifier and an antenna adjuster, the radio-frequency signals output by the radio-frequency preprocessing modules are sent to the external transmitter rear selector, filtering processing is carried out on the radio-frequency signals, noise is filtered, and finally the radio-frequency signals are output to a transmitter power amplifier. The short-wave four-channel photovoltaic conversion interface unit achieves integration of four short-wave zero intermediate frequency exciters, reduces the weight, and is high in bus transmission rate and good in anti-disturbance performance.

Description

technical field [0001] The invention relates to the field of electronic circuit design, in particular to a short-wave four-channel photoelectric conversion interface unit. Background technique [0002] The short-wave four-channel photoelectric conversion interface unit is designed for the short-wave four-channel integrated communication system. This unit is to realize the four-channel short-wave excitation function. Because the previous short-wave exciter can only realize the excitation of a single channel, if it is to realize the excitation of four channels, it needs a drawer of multiple excitation units, which is heavy and bulky. At the same time, the short-wave exciter and the short-wave controller are generally only connected by audio cables, so there will be disadvantages such as low transmission rate and poor anti-interference effect. With the continuous emergence of DSP and FPGA chips with high computing speed and the popularization of optical fiber transmission tech...

AI Technical Summary

Problems solved by technology

Since the previous short-wave exciter can only realize the excitation of a single channel, if it is to realize the excitation of four channels, it needs a drawer of multiple excitation units, which is heavy and bulky

At the same time, the short-wave exciter and the short-wave controller are generally only connected by audio cables, so there will be disadvantages such as low transmission rate and poor anti-interference effect.

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