摘要
采用大孔径宽间距传声器阵列,研究了一种基于广义旁瓣对消结构的诱导睡眠鼾声自适应增强处理方法,通过对手术室内医务人员语音及各种设备噪声干扰的有效抑制,有助于明显改善对期望鼾声信号的识别、截取、分析等后续数据处理性能。对实测阵列数据的仿真结果表明,该方法能够有效抑制手术室内的各种环境干扰,达到期望的诱导睡眠鼾声信号增强目标。
A generalized sidelobe canceller-based adaptive enhancement technique for drug-induced sleep snoring sound is studied with a large-aperture widely spaced microphone array.Aiming to improve the following data processing performance in recognition, segmentation as well as analysis of the snoring sound, this technique endeavors to suppress various ambient noise from medical staffs and equipments in the operating room without obvious distortion in the output.Simulation results u- sing the real data show that the interference suppression capability of the studied method meets the requirement of signal en- hancement for drug-induced sleep snoring sound.
出处
《电声技术》
2016年第3期28-32,共5页
Audio Engineering
基金
国家自然科学基金(61171167
61271410
61401203)
