Parameter optimization of laser fuze system with geometry intercepting ranging

Hailu, 袁海璐 Yuan; Bingting, 查冰婷 Zha; He, 张合 Zhang

doi:10.3788/irla201847.0806001

Cited by 3 publications

(2 citation statements)

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“…Circumferential-scanning underwater LiDAR should be able to detect the distance and direction of any target around the entire circumference [17][18][19][20][21][22][23][24][25]. To realize it, the four-quadrant transceiver scheme has been widely used in air conditions.…”

Section: Introductionmentioning

confidence: 99%

“…However, for underwater LiDAR, expanding the laser spot can severely shorten the detection range. Therefore, the traditional underwater LiDAR commonly employ a 360 • completed-circumferential scanning detection system with a single beam, primarily attributable to limitations in laser energy and considerations for heat dissipation [17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

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Design of Scanning Units for the Underwater Circumferential-Scanning LiDAR Based on Pyramidal-Shaped Reflectors and a Rapid Detection Method for Target Orientation

Zha,

Xu,

Chen

et al. 2024

Remote Sensing

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Challenges have been observed in the traditional circumferential-scanning LiDAR underwater to balance between the detection range and the sealing performance. To tackle these challenges, a new scanning unit is presented in this paper, employing a pyramidal-shaped reflector for enhanced performance. Furthermore, an innovative magneto–electric detection module comprising Hall switches and magnetic rings is introduced. It can facilitate the accurate identification of the reflector’s edge, thereby enhancing the precision of the target-orientation detection. A rapid target orientation coding method based on split-frequency clocks is proposed on FPGAs. It can output the target’s initial and termination orientation codes immediately after capturing it, exhibiting a significantly low output delay of 20 ns and a high detection resolution of 15°. Finally, a prototype is fabricated to validate the design in this paper. The experimental results demonstrate that the scanning unit enables reliable scanning and orientation recognition of the target. In addition, it is trustworthy in receiving echo signals when the laser passes through glass and then an aqueous medium.

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