| 1. | Doas method that have not been associated with the
方法之前的调用堆栈） ，它还没有与包含在认证的 |
| 2. | Doas is adopted based on the existing laboratory condition
针对现有实验条件选择差分吸收检测法。 |
| 3. | The mathematical model of doas is founded with the characteristic of medium light
从介质光吸收定律入手,建立了差分吸收检测法的数学模型。 |
| 4. | Based on the principle of differential optical absorption spectrometry ( doas ) , a set of detecting instrument for indoor air quality is proposed
摘要基于差分光学吸收光谱法原理，研究了一套室内空气质量检测装置。 |
| 5. | The correct estimation of incident signals " direction of arrivals ( doas ) is the premise of doa - based beamforming algorithms
对来波的波达方向( doa , directionofarrival )进行正确估计是doa波束形成算法的前提条件。 |
| 6. | In order to make the doas estimation faster , this paper discuss how to used multiple dsps to parallel implement the algorithm
采用music算法,需要对复矩阵进行特征分解,本文使用两种方法: jacobi法和householder 、 qr方法。 |
| 7. | With advantages of its lower equipment expenses and excellent monitoring capability , doas technique will own broad prospect at home
这种技术由于自身的优势，包括低廉的设备费用和出色的监测能力，在我国应该有着宽阔的前景。 |
| 8. | A novel joint estimation algorithm for ranges , frequencies and doas of multiple near - field narrowband sources is proposed in the near field is proposed
摘要提出了一种新的多个近场窄带信源距离、频率及到达角三维参数的联合估计算法。 |
| 9. | Two fundamental approaches , differential optical absorption spectra ( doas ) and wavelength modulation harmonic measurement , for gas light absorption detection are discussed
分析了波长调制谐波检测技术和差分吸收检测技术两种弱信号检测方法。 |
| 10. | Since applied in atmosphere monitoring at the end of 1970 ` s , differential optical absorption spectroscopy （ doas ） have made quiet great progress
差分吸收光谱技术（ doas ， differentialopticalabsorptionspectroscopy ）自20世纪70年代末被人们应用于大气气体监测以来，在这方面已经取得了长足的发展。 |
