超宽带生命探测雷达多观测点数据关联处理方法研究

项目名称： 超宽带生命探测雷达多观测点数据关联处理方法研究

项目编号： No.61501424

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： 吴世有

作者单位： 中国科学院电子学研究所

项目金额： 21万元

中文摘要： 超宽带生命探测雷达的多观测点探测模式是符合废墟救援实际需要的工作方式，但雷达的多观测点数据（包括雷达回波和检测值）关联检测处理难度大，至今没有获得实际应用，使得救援人员无法获取更多被困人员生命信息，导致救援效率降低。本项目针对该问题，首先，依据被困人员生命特征多样性特点，综合多观测点雷达回波建立废墟杂波观测模型并确定其概率分布，基于此将距离、方位、呼吸频率、肢体微动纹理作为生命特征检测对象，建立单观测点下的多种检测模型并确保检测值的准确性与相关性。其次，通过建立Markov状态估计模型关联这些检测值，揭示其与被困人员受困姿势、呼吸状态及肢体微动状态之间的内在联系，实现多观测点关联检测。最后，引入废墟稀疏程度估计，并联合距离、方位检测值构成被困人员空间信息，研究多观测点的被困人员搜救策略。该研究工作及成果具有广阔应用前景，将对我国生命探测雷达技术发展，提高救援效率，起着非常重要的支撑作用。

中文关键词： 生命探测；超宽带雷达；多观测点

英文摘要： The detection mode of multi-observation-points using UWB Life-Detection radar conforms to the actual requirement of ruin rescue. However, the associative processing and detection of the radar data including radar-echoes and detection-values obtained from the multi-observation-points is difficult. Until now, it cannot be used in the practical application, which makes the rescuers get less life information of the trapped person and leads to the low rescue efficiency. Aiming at this problem, this project firstly combines multi-observation-points radar-echoes to establish the observation model of ruin clutter and determine the corresponding probability distribution, according to the diversity of the vital signs of the trapped person. Based on the probability distribution of ruin clutter, the range, azimuth, respiration frequency and body micro-movement texture are taken as the detection objects and several detection models are established to obtain the accurate and related results of the vital signs. Secondly, the Markov state estimation model is established to associate these results of vital signs. The multi-observation-points associative detection can be realized by revealing the inner connection between the vital signs and the trapped posture, respiration status and body micro-movement status of the trapped person. Finally, by introducing the ruin sparse degree estimation and combining the range and azimuth values, the trapped person’s spatial information is obtained to study the multi-observation-points search strategy of the trapped person. The consequent research outcome will bring broad application prospect, and play an important supporting role on the development of national life-detection radar technology and the high rescue efficiency.

英文关键词： life detection;UWB radar;multi-observation-points