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Chaotic modulation VCSEL array-based unmanned vehicle laser radar device

A laser radar and unmanned driving technology, which is applied in the directions of measurement devices, ICT adaptation, electromagnetic wave re-radiation, etc., can solve the problems that VCSEL arrays are not specifically applied in the anti-jamming field of unmanned vehicles, so as to improve the anti-jamming performance and facilitate Controlled, volume-reducing effects

Active Publication Date: 2019-06-07
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0008] In order to solve the problem that the VCSEL array based on electrical chaos modulation has not been specifically applied to the anti-jamming field of unmanned vehicles, the present invention provides an unmanned laser radar device based on chaotic modulation VCSEL array

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  • Chaotic modulation VCSEL array-based unmanned vehicle laser radar device
  • Chaotic modulation VCSEL array-based unmanned vehicle laser radar device

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0019] An unmanned lidar device based on a chaotically modulated VCSEL array, such as figure 1 and figure 2 As shown: including a signal transmitting module 100, an optical path adjustment module 110, a signal receiving module 120 and a data processing module 130, the signal transmitting module 100 transmits the optical path data to the optical path adjustment module 110, and the optical path adjustment module 110 converts The optical path data is transmitted to the signal receiving module 120 , and the signal receiving module 120 finally transmits the data to the data processing module 130 . The signal receiving module 120 includes a photodetector array 3 and a register 4 ; the data processing module 130 includes a digital correlator 9 , a sensory data processing system 10 , a fusion decision system 11 , and a control execution system 12 . The signa...

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Abstract

The invention discloses a chaotic modulation VCSEL array-based unmanned vehicle laser radar device and belongs to the technical field of the application of laser radars to unmanned vehicles. The device comprises a signal transmitting module, an optical path adjustment module, a signal receiving module and a data processing module; the signal transmitting module comprises a driving modulation system and a VCSEL array; the driving modulation system emits electric chaotic signals to modulate lasers in the VCSEL array and sequentially drive the lasers at a certain time interval to emit chaotic beams; the chaotic beams enter the optical path adjustment module; adjusted optical path data are transmitted to the signal receiving module; the signal receiving module finally transmits the data to thedata processing module; and the data processing module performs data processing and then performs operation. According to the chaotic modulation VCSEL array-based unmanned vehicle laser radar deviceof the invention, the electric chaotic signals are adopted as reference signals, an optical feedback device and a beam splitter are not needed to obtain reference light, and therefore, the device is simplified, and the utilization rate of the beams can be improved; and the broadband chaotic signals effectively realize anti-interference performance, so that ranging accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of laser radar application in unmanned vehicles, in particular to an unmanned laser radar device based on chaotic modulation VCSEL array. Background technique [0002] With the progress of society and the rapid development of highway transportation system, unmanned vehicles have shown a momentum of rapid development. LiDAR accounts for 90% of the applications in the driverless car market. Lidar has many advantages such as small error, fast ranging speed, wide measurement range, strong robustness, and no influence of environmental illumination, and has been widely used. With the rapid development of unmanned driving technology, the formation of unmanned traffic network is no longer far away. How to avoid the interference of unmanned vehicles through lidar is still an unresolved problem. Speed ​​also puts forward higher requirements. [0003] At present, most of the widely used laser radars for unmanned veh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/93G01S17/89G01S7/481
CPCY02A90/10
Inventor 王云才吴梅王安帮贾志伟赵彤郭园园王龙生王大铭
Owner TAIYUAN UNIV OF TECH
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