基于声光光谱成像的反激光窃听告警系统关键技术研究

项目名称： 基于声光光谱成像的反激光窃听告警系统关键技术研究

项目编号： No.61505179

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 陈友华

作者单位： 中北大学

项目金额： 20万元

中文摘要： 本项目面向信息安全，传感探测等基础科研和重大工程应用前景，针对因窃听激光束直径小，发散小，入射波长与方向不可知等特征造成的无法进行直接截获探测告警的困难，创新性地提出了一种基于声光光谱成像技术的散射探测式光谱成像告警新思路，旨在解决与实时告警及特征识别相关的理论和技术问题。在前期的研究积累中，申请人及课题组已对本项目核心研究内容声光可调谐光谱成像技术进行了深入研究，并对拟研究的反激光窃听告警技术进行了原理性实验验证。项目将以申请人及课题组在激光告警及声光光谱成像技术等良好的研究基础为支撑，研究玻璃介质中的激光散射，背景噪声抑制以及窃听激光源方位识别等核心问题，并最终建立告警系统的整体理论模型及实验平台，给出探测角、光谱分辨率、灵敏度等重要技术参数。研究结果可为系统的进一步工程实现提供关键理论和技术支撑，有助于激光告警理论与技术的进一步发展，并可为反激光窃听防护及反制措施提供必要的决策依据。

中文关键词： 反激光窃听；激光告警；声光光谱成像；散射

英文摘要： This project is oriented at the fundamental scientific research, including the information safety, sensing detection, etc. and applications prospects of major projects. Aiming at the difficulties in the direct interception and capture of detection warning caused by the features of eavesdropping laser beam, such as short diameter, small divergence, unknown wavelength and incidence direction, etc. a scattering detective spectral imaging warning thought based on the acousto-optic imaging technology is proposed creatively, targeting at solving the theoretical and technical problems related to the real-time warning and feature recognition. In the pre-stage study accumulation, the applicant and research group has already conduct in-depth study on the core research content, namely the tunable spectral imaging technology, and conduct the principle experimental verification for the anti-laser tapping warning technology. The project takes the studies of the applicant and research group in the laser warning and acousto-optic spectral imaging technology, etc. as the support, study the core problems, such as the laser scattering in glass medium, sky background noise suppression, as well as the laser source direction recognition, and finally establish the overall theoretical model and experimental platform of the warning system, and give the significant technical parameters, including the search angle, spectral resolution, sensitivity, etc. The research result can offer key theoretical and technical support for the future engineering realization of the system, which will be favorable for the further development of the laser warning theory and technology, as well as the offering of necessary decisive basis for the anti-laser eavesdropping prevention and countermeasures.

英文关键词： Anti-laser eavesdropping ;Laser warning ;Acousto-optic spectral imaging;Scattering