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Function-flexible photonics auxiliary frequency measurement method and device

A technology of auxiliary frequency and measurement device, applied in electromagnetic wave transmission systems, electrical components, transmission systems, etc., can solve the problems of influence, large modulator arrays are not easy to integrate, etc., to simplify the system structure, simplify the electro-optical modulation part, The effect of improving stability

Active Publication Date: 2021-10-22
AIR FORCE UNIV PLA
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Problems solved by technology

In particular, large modulator arrays are not easy to integrate, which will greatly affect their application on future limited payload platforms (such as space-based, space-based, sea-based)

Method used

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Embodiment Construction

[0060] The present invention provides a functionally flexible photonics-assisted frequency measurement method and device, which will be further described below in conjunction with the accompanying drawings.

[0061] 1. Functionally flexible photonics-assisted frequency measurement device

[0062] System link such as figure 1 As shown, a functional flexible photonics-assisted frequency measurement device based on the combination of stimulated Brillouin scattering and Mach-Zehnder interference, including a laser source, an electrical amplifier, a dual-polarization Mach-Zehnder modulator DPol-DMZM, and an erbium-doped optical fiber Amplifier EDFA, polarization controller PC, coarse / fine frequency measurement module, processing module. The optical carrier generated by the laser is input into the dual-polarization Mach-Zehnder modulator, and is subjected to carrier-suppressed double-sideband modulation and phase modulation by the unknown radio frequency RF signal and the scanning ...

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Abstract

The invention discloses a functional flexible photonics auxiliary frequency measuring device based on combination of stimulated Brillouin scattering and Mach-Zehnder interference. The functional flexible photonics auxiliary frequency measuring device comprises a laser source, an electric amplifier, a dual-polarization Mach-Zehnder modulator DPol-DMZM, an erbium-doped fiber amplifier EDFA, a polarization controller PC, a coarse / fine frequency measuring module and a processing module. The invention also provides a functional flexible photonics-assisted frequency measurement method. The method is flexible in function and reconfigurable, can support frequency measurement of a radar early warning receiver and an electronic countermeasure receiver under the same hardware configuration, has a large measurement range, high precision and high response speed, and is suitable for a miniaturized, integrated and integrated cognitive detection system in a complex electromagnetic environment.

Description

technical field [0001] The invention relates to the field of microwave photon frequency measurement, in particular to a functional flexible photonics-assisted frequency measurement method and device based on the combination of stimulated Brillouin scattering and Mach-Zehnder interference. Background technique [0002] In modern radar early warning and electronic countermeasure systems, frequency measurement is an important task to identify intercepted microwave signals, which is usually completed by specially designed receivers. Ideally, a wide frequency measurement range, high precision and fast response time are expected. However, it is difficult to satisfy these requirements simultaneously based on existing technologies. Therefore, a compromise based on different applications would be better. Usually, radar warning receiver RWR is used to provide real-time warning, it pays more attention to wide frequency range to cover all threats and fast measurement response, while a...

Claims

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Application Information

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IPC IPC(8): H04B10/079
CPCH04B10/0795
Inventor 黄蓝锋李勇军赵尚弘林涛王国栋李轩朱子行李赫周逸潇
Owner AIR FORCE UNIV PLA
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