舱外航天服头部空间主动降噪技术研究  

Research on Active Noise Control in Head Space of EVA Spacesuit

作　　者：黄云 何双亮[2] 徐海涛 薛长斌 李鹏伟 HUANG Yun;HE Shuangliang;XU Haitao;XUE Changbin;LI Pengwei(National Space Science Center,Chinese Academy of Sciences,Beijing 100190,China;National Key Laboratory of Human Factors Engineering,China Astronaut Research and Training Center,Beijing 100094,China)

机构地区：[1]中国科学院国家空间科学中心,北京100190 [2]中国航天员科研训练中心人因工程重点实验室,北京100094

出　　处：《载人航天》2023年第2期186-191,共6页Manned Spaceflight

基　　金：人因工程重点实验室开放基金资助项目(SYFD061911K)。

摘　　要：为降低舱外航天服头部空间噪声水平,以保障通话效果和航天员听力,进行舱外航天服头部空间主动降噪技术研究。根据多入多出技术构建声场主动降噪模型,求解空间三维声全息函数,实现头部空间的噪声声场建模。考虑到实际部署的环境限制,设计基于部署约束的主动降噪算法,在空间场主动降噪系统中通过全局控制,完成空间场的主动降噪。经过实际场景的测试,提出的主动降噪算法在人耳处降噪效果为13.88 dB,有效降噪频率范围为450~2000 Hz,可有效降低低频段噪声。To control the noise level in the head space inside the EVA spacesuit and to ensure the communication performance and astronauts’hearing,the active noise control technologies were studied.Based on the active noise control model of sound fields with multiple input multiple output technology,the three-dimensional acoustic holographic function was solved and the noise sound field modeling of head space was realized.Considering the environmental constraints of actual deployment,an active noise control algorithm based on deployment constraints was proposed,and the active noise control of the entire space field through global control in the space field was completed.The tests in actual scenarios showed that the active noise control algorithm had a noise control effect of 13.88 dB at the ear positions and the effective noise control frequency range was 450~2000 Hz.The algorithm could effectively control the low frequency noise.

关 键 词：舱外航天服 多入多出技术 三维声全息函数 主动降噪 

分 类 号：TN912.3[电子电信—通信与信息系统] V19[电子电信—信息与通信工程]