Peer type high resolution three-dimensional imaging detector

Abstract

The invention relates to a gaze-type high-resolution 3D imaging detector. The technical proposal of the invention is that the invention comprises an optical coherent fiber bundle formed by optical fibers and a photo sensor. One end of the optical fiber in the optical coherent fiber bundle is bound together with the end surface forming the imaging surface while the other end coupling with the photo sensor. To solve the technical problems in the background technique, the invention provides the gaze-type high-resolution 3D imaging detector, combining optical coherent fiber bundle and a plurality of units of photodetectors with high angular resolution and rapid response.

Description

technical field [0001] The invention relates to photoelectric detection device technology, in particular to a staring type high-resolution three-dimensional imaging detector. Background technique [0002] Laser three-dimensional imaging technology is an active optical detection technology that irradiates the target with a laser beam and detects the laser echo signal of the target to obtain the three-dimensional image information of the target. Since the wavelength of laser is several orders of magnitude shorter than that of microwave, compared with microwave radar, laser three-dimensional imaging technology has the following advantages: extremely high angular resolution, distance resolution and velocity resolution; strong anti-electromagnetic interference ability; concealment Good sex and so on. Compared with passive optical detection technology, laser three-dimensional imaging technology has the following advantages: it is an active detection technology that can work aroun...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the use of scanning components, the angular resolution of lidar is limited by the accuracy of the scanning mechanism, which weakens the advantages of high spatial and angular resolution of optical imaging

[0004] 2. Since the 3D image of the target is composed of the echo signals of different parts of the target at different times, many laser pulses are required to be arranged in strict accordance with the time sequence to form a complete 3D image, resulting in slow imaging speed and the movement of the platform / target and atmospheric effects can cause 3D image shaking and tearing, which complicates image processing and is not conducive to observing moving targets, especially high-speed moving targets

[0005] 3. The use of mechanical moving parts reduces the reliability of the system, increases the weight and power consumption of the system, and limits its application to a certain extent, especially in aviation and aerospace applications.

[0007] 1. The integration level is not high and the array size is small

[0008] 2. The pixel size is large and the interval between pixels is wide, resulting in low angular resolution

[0009] 3. The unit detectors are easy to interfere with each other, and the response speed is slow

[0010] Therefore, this device is difficult to meet the high-precision staring laser three-dimensional imaging requirements

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