Light-borne ultra-broadband long-range microwave photon chaotic mimo imaging radar

A technology of microwave photon and imaging radar, which is applied in the directions of electromagnetic wave re-radiation, radio wave measurement system, utilization of re-radiation, etc. It can solve the problems of remote control of radar and enhance the broadband of transmitted signals, etc., achieve ingenious design and improve resolution , to achieve high-resolution effects
CN105005052BActive Publication Date: 2017-06-09TAIYUAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2017-06-09

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Abstract

The invention relates to the radar imaging technology, and concretely relates to radio-over-fiber ultra-wideband remote microwave photon chaotic MIMO imaging radar. The invention helps to solve the problem that there is no MIMO radar that can generate multi-path, quasi-orthogonal chaotic ultra-wideband signals directly in an optical domain. The radio-over-fiber ultra-wideband remote microwave photon chaotic MIMO imaging radar includes a central station part, a transmission link part and a base station part. The central station part includes a first multi-longitudinal mode semiconductor laser with a fiber feedback loop, a first optical circulator, a first erbium doped fiber amplifier, a 1*2 20: 80 coupler, a first polarization controller, a first variable optical attenuator, a 2*1 50:50 coupler, a second multi-longitudinal mode semiconductor laser with a fiber feedback loop, a second variable optical attenuator, a second polarization controller, and an optical isolator. The radar is suitable for remotely monitoring, in real time and with high resolution, targets in battle fields, snow mountain tops, islands, coal bunkers and other severe environments.
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Description

technical field

[0001] The invention relates to radar imaging technology, in particular to an optical-carrying ultra-broadband long-range microwave photon chaos MIMO imaging radar. Background technique

[0002] With the advancement of radar technology, the radar function has already developed from the initial target detection, ranging, angle measurement, speed measurement, etc. to two-dimensional or three-dimensional target imaging. Radar images can help people obtain useful information about the target's spatial structure and attribute characteristics. Since the 1950s, radar imaging technology has been widely used in many fields such as agricultural and forestry production, environmental protection, disaster reporting, marine monitoring, geographic mapping, resource exploration, non-destructive testing, biomedicine, archaeology and military affairs.

[0003] Radar imaging technology is to retrieve the target image by actively transmitting electromagnetic waves to the targe...

Claims

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