A microwave photon multi-channel sensing integrated method

Through the integrated microwave photon multi-channel synsensing method, N-wavelength coherent optical carrier and electro-optical modulation modules, the signal frequency band transmission and flexible channel design are realized, and the space and spectrum of communication equipment and radar equipment under the same operating platform are solved. Occupancy issues reduce system complexity and electromagnetic interference, and improve signal transmission efficiency and accuracy.

CN115776337BActive Publication Date: 2024-12-24XIDIAN UNIV
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Patent Information

Application Number
CN202111034702.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-09-04
Publication Date
2024-12-24
Estimated Expiration
2041-09-04

AI Technical Summary

Technical Problem

The existing technology is difficult to effectively solve the problem that communication equipment and radar equipment occupy physical space and spectrum resources under the same operating platform, resulting in increased system design complexity and increased electromagnetic interference, and the performance bottleneck of traditional electronic equipment when working in high-frequency bands is serious. It is difficult to meet the transmission needs of large bandwidth signals.

Method used

Using the integrated microwave photon multi-channel synsensing method, the signal is transmitted and received in frequency bands by N-wavelength coherent optical carrier and electro-optical modulation module using tunable optical filter module and single-mode optical fiber, combining 90° optocoupler and digital The signal processing module realizes up-conversion of the optical domain and down-conversion of the same frequency channel to reduce system complexity and electromagnetic interference.

Benefits of technology

It realizes the frequency band transmission of large broadband signals, flexibly designs the number of channels and bandwidth, and the system can be reconstructed, with the advantages of high precision and large capacity, reducing system volume and electromagnetic interference, and improving the transmission efficiency of communication and radar signals.

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Abstract

The present invention discloses a microwave photon multi-channel communication and sensing integration method, which relates to the fields of microwave technology and optical communication technology. The method is shown in Figure 1 of the specification, including N-wavelength coherent optical carriers, N-wavelength coherent optical local oscillators, electro-optical modulation modules, tunable optical filtering modules, single-mode optical fiber SMF, photoelectric detection modules, electrical filters, electrical power amplifiers, transmitting antenna oscillators, receiving antenna oscillators, low-noise amplifiers, 90° optical couplers, balanced detection modules, digital-to-analog converters, and digital signal processing modules. The transmitting end realizes the up-conversion and transmission of N-channel broadband signals from the central station to the remote antenna unit, and the receiving end realizes the N-channel same-intermediate-frequency channelized reception of broadband signals from the remote antenna unit to the central station, and uses 90° optical couplers and balanced detection modules for image suppression. The present invention can solve the frequency-band transmission and reception of large broadband signals under the application of integrated communication and sensing, and has potential application value in communication radar integrated systems.
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