整体刺激 DPOAE 分析
Paul D Teal1, Christopher A Shera2, Carolina Abdala2
1Victoria University of Wellington, Wellington, New Zealand.
AIP conference proceedings
|November 15, 2024
概括
一种新方法同时估计了扭曲产品耳声发射 (DPOAE) 中的扭曲 (D) 和反射 (R) 组件,以改进听力诊断. 这种方法增强了信号分离,并减少了测量工件.
科学领域:
- 听力学 听力学是指听力学.
- 生物医学工程 生物医学工程
- 信号处理 信号处理
背景情况:
- 扭曲产品耳声发射 (DPOAE) 对于听力诊断至关重要,但由于相互作用的组件而复杂化.
- 目前用于分离DPOAE组件的信号处理方法是不完美的,通常涉及频率精度和信号噪声比之间的权衡.
研究的目的:
- 提出一种新的信号处理方法,用于同时估计DPOAE中扭曲 (D) 和反射 (R) 组件的整个光谱.
- 克服现有的时间窗口方法的局限性,提高耳机制评估的准确性.
主要方法:
- 拟议的方法同时估计D和R组件的全部光谱,使用线性凸起式问题表述.
- 假设包括R和D测量的总和作为与刺激的卷积,D比R更顺的频率表示,以及可用的噪音水平估计.
- 该方法结合了刺激信号模型,以最大限度地减少干扰,并有效地处理数据与测量器件.
主要成果:
- 新方法提供了优势,包括在频率精度和信号噪声比率之间没有妥协.
- 它有效地结合了刺激信号模型,并有效地利用了被工件损坏的数据.
- 该方法比现有技术有所改进,特别是在减少R组件对D组件的污染方面.
结论:
- 开发的方法提供了一种更稳健,更准确的方法来分离DPOAE中的D和R组件.
- 这一进步有可能提高DPOAE的诊断能力,以评估耳功能.
- 该方法的适应性允许跟踪DPOAE的变化,以应对各种治疗.
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