To ensure that the laser proximity fuze can detect the ground target during the intersection between the laser detection system and the ground target, based on the dual-transmitter dual-receiver laser circumferential scanning detection mechanism, we established the constraint functions of scanning frequency and laser pulse frequency without missing measurement. According to the surface characteristics of the plane target, we derived the calculation models of the laser echo power and the minimum detectable echo power of the detection system to the plane target under the random intersection attitude. The calculation function of the angle between adjacent laser beams is obtained based on the minimum detectable echo power. We discussed the relation of the scanning frequency, the laser pulse frequency, the angle between adjacent laser beams and the intersection angle, focused on the influence of the intersection angle and the detection distance on the laser echo power. The simulation experiments were carried out under different laser peak powers and detection distances, the experimental results fully demonstrate that the laser echo power calculation model established in this paper is correct; the detection ability of the system is improved to a certain extent by increasing the laser peak power.

中文翻译：

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基于双发双收激光圆周扫描检测机制的激光回波功率计算模型及分析

为保证激光近炸引信在激光探测系统与地面目标相交过程中能够探测到地面目标，基于双发双收激光周向扫描探测机制，建立了扫描频率和激光的约束函数。脉冲频率而不会丢失测量值。根据平面目标的表面特性，推导出随机相交姿态下激光回波功率和探测系统对平面目标的最小可探测回波功率的计算模型。基于最小可检测回波功率得到相邻激光束夹角的计算函数。我们讨论了扫描频率、激光脉冲频率、相邻激光束之间的夹角与相交角，重点研究相交角和探测距离对激光回波功率的影响。在不同激光峰值功率和探测距离下进行了仿真实验，实验结果充分证明了本文建立的激光回波功率计算模型的正确性；通过提高激光峰值功率，在一定程度上提高了系统的检测能力。