ID 原文 译文
58618 最后,实时监测传输路径中节点的转发行为,及时触发路由重构,以保障数据安全可靠地传输至目的节点。 Finally the forwarding behavior of nodes in the transmission path is monitored in real time, and the routing reconstruction is triggered as needed.
58619 仿真结果显示,当网络中存在恶意节点时,所提协议相比现有协议在分组投递率、平均端到端时延及平均跳数等方面均有明显提升,能够有效地提升低轨卫星网络数据传输的安全性。 Simulation results show that, compared with the existing protocol, the proposed protocol can significantly improve the performance of the packet delivery rate, average end-to-end delay and average hop than the existing protocol when malicious nodes exist in the network. The protocol can effectively improve the security of data transmission in LEO satellite networks.
58620 针对盲源分离技术在低信噪比尤其是扩频通信门限信噪比下分离性能恶化的问题,提出了一种改进的基于盲源分离的扩频通信抗干扰算法。 An improved anti-jamming algorithm for spread spectrum communication based on blind source separation (BSS) is proposed to solve the problem that the separation performance of BSS technology deteriorates at a low signal-to-noise ratio (SNR), especially at the threshold SNR of spread spectrum communication.
58621 该算法首先检测盲源分离算法输出结果的模糊性;然后利用检测结果对分离矩阵进行修正; First, the algorithm detects the ambiguity of the output of the blind source separation algorithm, and then uses the detection result to correct the separation matrix.
58622 最后通过对多个修正后的矩阵进行累加,得到新的分离矩阵,将其应用于系统的干扰分离。 Finally, the new separation matrix is obtained by accumulating a plurality of modified matrices, and applied to the jamming separation of the system.
58623 该算法实现结构简单,可实现扩频系统在解调门限处的抗干扰通信。 The algorithm has a simple structure and can realize anti-jamming communication of the spread spectrum system at the demodulation threshold.
58624 仿真结果表明,在负信噪比下通过该算法去除干扰后的通信信号解调误码性能依然接近理论性能。 Simulation results show that the demodulation error performance of the communication signal after removing the jamming by the algorithm at a negative SNR is still close to the theoretical performance.
58625 由于在传统的图像引导穿刺手术中,图像是由手持超声探头接触病灶位置获得的,往往因医生劳累或经验不足, 出现探头定位不准确、接触力控制不稳定等问题,导致穿刺失败。 Since images in traditional ultrasound-guided puncture surgery are obtained by touching the position of the lesion with a hand-held ultrasound probe, it often causes puncture failure by inaccurate probe positioning and unstable contact force control due to the doctor’s fatigue or poor experience.
58626 对此,提出一种利用视觉和力觉引导超声探头自动定位的方法。 In this regard, a method for guiding the automatic positioning of the ultrasonic probe by using vision and force is proposed.
58627 首先,利用组合图像处理算法和匹配算法进行小目标特征点检测; First, the combined image processing algorithm and matching algorithm are used to detect the small target feature points.