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Ultra wide band microwave photon long-distance range radar device based on chaos laser

A chaotic laser and ranging radar technology, which is applied in measuring devices, radio wave measuring systems, radio wave reflection/re-radiation, etc., can solve the problems of short range and low resolution of random signal radar, and achieve low power consumption , high distance resolution, and the effect of frequency bandwidth

Active Publication Date: 2015-04-15
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0008] The purpose of the present invention is to provide an ultra-broadband microwave photon long-range ranging radar device based on chaotic lasers, which solves the problems of short range and low resolution of current random signal radars

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  • Ultra wide band microwave photon long-distance range radar device based on chaos laser

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Embodiment Construction

[0025] In order to better illustrate the specific implementation of a chaotic laser-based ultra-broadband microwave photon long-range ranging radar device provided by the present invention, the following will be combined with the attached figure 1 Make further clarification.

[0026] A chaotic laser-based ultra-broadband microwave photon long-range ranging radar device provided by the present invention includes a central station I, a transmission optical fiber and a remote antenna terminal II. Wherein, the central station I includes an ultra-broadband chaotic laser source 1, a fiber coupler 2, a third single-mode optical fiber 15, a third photodetector 14, a second photodetector 13 and a data processing center 16; the transmission optical fiber Including a first single-mode optical fiber 3 and a second single-mode optical fiber 12; the remote antenna end II includes an optical adjustable attenuator 4, a first photodetector 5, a first low-noise amplifier 6, an ultra-wideband tr...

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Abstract

The invention discloses an ultra wide band microwave photon long-distance range radar device based on chaos laser. The ultra wide band microwave photon long-distance range radar device based on chaos laser is characterized in that an ultra wide band chaos signal is used as a radar detection signal; the radar detection signal is transmitted via a long single mode fiber, is converted into a corresponding electric signal at a long-distance antenna terminal and is transmitted via an ultra wide band antenna; a detection signal is received by the ultra wide band antenna of the same model after being reflected when meeting a space target part; the laser is subjected to linear modulation, the signal is converted into a corresponding optical signal and is then transmitted via the single mode fiber to return to a center station; data processing is carried out in the data processing center to obtain and display target distance information; and therefore, the space precise positioning of the long-distance target is realized. The ultra wide band microwave photon long-distance range radar device based on the chaos laser is used for monitoring the military radar, the radar system on the mountain top and the island with severe environment and the industrial areas with severe or dangerous environment in real time.

Description

technical field [0001] The invention relates to a radar long-distance measuring, long-distance sensing and real-time monitoring device, in particular to a radar device which realizes long-distance precise positioning and long-distance sensing by using ultra-wideband chaotic signals. technical background [0002] Since World War II, radar has played an increasingly important role in aviation, aerospace, transportation, weather forecasting, geodesy and military affairs. As an important means of obtaining spatial information, radar plays a pivotal role in modern battlefields and ruins in disaster areas. In the civilian field, environmental monitoring, medical monitoring, vehicle radar, smart home, and high-precision positioning also have good application prospects. [0003] In radar design, radar waveform design is one of the important contents of radar overall design. The waveform of the radar determines the radar system, signal generation design and the best received signal...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/08
Inventor 张明江吉勇宁王云才王安帮武媛刘丽徐航
Owner TAIYUAN UNIV OF TECH
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