Synchronous range/velocity measurement system based on non-scanning laser radar and CCD camera
A laser radar, non-scanning technology, applied to radio wave measurement systems, measurement devices, camera devices, etc., to achieve the effects of high precision, small devices, and simple structure
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specific Embodiment approach 1
[0015] Specific implementation mode one: combine figure 1 Describe this embodiment, this embodiment consists of a non-scanning laser radar, a control processor 1, a first beam splitter 3, a PIN decoder 5, a delay generator 6, a high-voltage modulation power supply 7, a gate power supply 8, and a second beam splitter 11. A narrow-band filter 12, a band-stop filter 13 and a CCD camera 14; the non-scanning laser radar is composed of a pulse laser 2, a transmitting optical shaping system 4, an ICCD area array detector 9 and a receiving optical system 10;
[0016] The laser beam emitted by the pulse laser 2 is split by the first beam splitter 3 and irradiated on the light-receiving surface of the emitting optical shaping system 4 and the PIN decoder 5 respectively, and the laser beam irradiated on the emitting optical shaping system 4 is shaped and irradiated On the target, the echo pulses reflected by the target are received by the receiving optical system 10, and the laser beam ...
specific Embodiment approach 2
[0018] Specific implementation mode two: combination figure 1 Describe this embodiment, the difference between this embodiment and the specific embodiment is that the ICCD area array detector 9 is made up of a microchannel plate 9-1, a fluorescent screen 9-2 and a CCD9-3; the microchannel plate 9-1, Fluorescent screen 9-2 and CCD 9-3 are arranged on the same horizontal optical axis in sequence. Other compositions and connection methods are the same as those in Embodiment 1.
specific Embodiment approach 3
[0019] Specific implementation mode three: combination figure 2 Describe this embodiment, the difference between this embodiment and the second embodiment is that the control processor 1 is used to trigger the pulse laser 2 and trigger the high-voltage modulation power supply 7 to generate a high-voltage modulation signal, and is also used to control the delay generator 6 to generate a delay The signal is also used to set the exposure time of the CCD camera 14, and triggers the pulse laser 2 to emit two pulses with time intervals within the exposure time, and triggers the microchannel of the ICCD area array detector 9 while emitting pulses The gain modulation of the board 9-1, the two beams of pulses correspond to different modulation gain modes; and it is used to process the distance image from the image information transmitted by the ICCD area detector 9 and the CCD camera 14, and the processing process is as follows:
[0020] First FFT spectrum distinguishes motion directi...
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