舰船电子对抗

在宽带直调射频光传输(RoF)系统中，电光转换的噪声系数很大。为了保证系统接收灵敏度，需要在电光转换前配置足够的信号增益，进而造成系统链路动态受限。给出了一种宽带直调RoF系统动态提升方法，该方法可灵活配置链路动态，具有较好的应用前景。

In the wideband direct modulation RF-over-fiber(RoF) transmission system, the noise factor of electro-optic conversion is very large.In order to guarantee the sensitivity of system receiving, enough signal gain must be set before electro-optic conversion, which result in dynamic limitation of the system link.This paper provides a dynamic range improving method of wideband direct modulation RoF system, which can deploy the link dynamic range neatly and has a good application prospect.