一种基于准连续光相位采样的信号灵活处理与采样装置

By using a signal processing and sampling device based on quasi-continuous optical phase sampling, the problems of bandwidth limitation and multiple conversions in analog signal processing are solved, enabling tunable processing and digitization of ultra-wideband signals, and improving system stability and signal quality.

CN119363240BActive Publication Date: 2026-07-17XIAN INSTITUE OF SPACE RADIO TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN INSTITUE OF SPACE RADIO TECH
Filing Date
2024-09-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies suffer from bandwidth limitations and a surge in data volume in the digital domain during analog signal processing. Furthermore, multiple photoelectric/electro-optical conversions lead to signal power loss and distortion, thus limiting system stability.

Method used

A signal processing and sampling device based on quasi-continuous light phase sampling is adopted, including a light source, a tunable quasi-continuous light generation module, a phase modulator, an unequal-arm light interference module, and an electrical back-end module. The device performs phase sampling and processing on the radio frequency signal through the quasi-continuous light signal and outputs the digitized result of the analog signal.

Benefits of technology

It enables tunable processing of ultra-wideband signals, simplifies the system structure, improves system stability and reliability, and avoids signal loss and distortion caused by multiple conversions.

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Abstract

本发明公开了一种基于准连续光相位采样的信号灵活处理与采样装置,属于信号处理技术领域。该装置包括光源,及沿光源的信号输出方向依次顺序连接的可调谐准连续光发生模块、相位调制器、不等臂光干涉模块、电后端模块。可调谐准连续光发生模块对光源产生的光脉冲信号进行处理,生成时域波形为等间隔出现的、具有持续时间的展宽光脉冲序列,序列中每个光脉冲的时域外形根据从待接收射频信号提取的目标信号频率进行调谐。相位调制器对待接收射频信号进行相位采样,不等臂光干涉模块将采样得到的信号进行干涉处理,输出光信号。电后端模块对光信号进行光电转换、滤波、数字采样,得到模拟处理后的目标信号数字化结果。
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