Review on tactile sensory feedback of prosthetic hands for the upper-limb amputees by sensory afferent stimulation

Loss of sensory function for upper-limb amputees inevitably devastates their life qualities, and lack of reliable sensory feedback is the biggest defect to sophisticated prosthetic hands, greatly hindering their usefulness and perceptual embodiment. Thus, it is extremely necessary to accomplish an intelligent prosthetic hand with effective tactile sensory feedback for an upper-limb amputee. This paper presents an overview of three kinds of ex- isting sensory feedback approaches, including cutaneous mechanical stimulation （CMS）, transcutaneous electrical nerve stimulation （TENS） and direct peripheral nerve electrical stimulation （DPNES）. The emphasis concentrates on major scientific achievements, advantages and disadvantages. The TENS on the skin areas with evoked finger sensation （EFS） at upper-limb amputees＇ residual limbs might be one of the most promising approaches to realize natural sensory feedback.     

双波段红外目标数据融合模型的研究

从跟踪性能,计算的复杂性,以及应用范围等方面对双波段红外传感器的三种融合模型进行比较,得出来自同一平台上两个红外传感器的数据,在各传感器没有各自的数字处理机的情况下,点迹融合模型较其余两种模型实用的结论。最后给出在点迹融合模型的基础上,用极大似然融合算法对点迹进行融合处理的仿真结果,证明该算法用于此种模型能提高目标状态信息的估计精度,降低测量误差,从实际应用上进一步说明算法的有效性。     

美国海军舰用近区安全监视系统

介绍舰用近区安全监视系统的研制目的和技术要求，分析比较采用光、磁、声、射频、震动等刁；同技术原理的探测元件之间的优缺点。结合美国海军的在研系统，介绍以全景成像技术、多传感器及图像识别技术和毫米波及无线电技术作为关键技术的各种系统设计方案，提出舰用近区安全监视系统设计‘的最佳选择。