光电工程, 2020, 47 (3): 190650, 网络出版: 2020-04-05
一种超宽带零中频的微波光子信道化接收机
An ultra-wideband microwave photonic channelized receiver with zero-IF architecture
微波光子 信道化 零中频接收机 光频率梳 microwave photonic channelization zero-intermediate frequency (IF) receiver optical frequency comb
摘要
信道化接收技术是现代电子战和雷达系统的重要组成部分，是满足其高频段、大带宽、多通道同时接收等需求的核心使能技术。本文提出了一种基于微波光子的零中频接收机，可通过调整光频梳中心频率的方法使之与宽带RF信号组的中心频率相对应，从而实现3 GHz 的宽带射频信号的信道化接收，每个子信道带宽为600 MHz 且直接解调为I/Q 基带信号。
Abstract
Channelized receiving technology is an important part of modern electronic warfare and radar systems. It is a core enabling technology that meets the needs of its high frequency band, large bandwidth, and simultaneous multi-channel reception. In this paper, a zero-IF receiver based on microwave photonic is proposed. The center frequency of the optical frequency comb can be adjusted to correspond to the center frequency of the wideband RF signal group. Therefore, the channelized reception of the 3 GHz wideband RF signal is achieved, and each subchannel has a bandwidth of 600 MHz and is directly demodulated into I/Q baseband signal.
陈博, 王明军, 高永胜. 一种超宽带零中频的微波光子信道化接收机[J]. 光电工程, 2020, 47(3): 190650. Chen Bo, Wang Mingjun, Gao Yongsheng. An ultra-wideband microwave photonic channelized receiver with zero-IF architecture[J]. Opto-Electronic Engineering, 2020, 47(3): 190650.
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