| 1. | Underwater target identification based on the methods of bearing and cross - spectrum
基于方位走向法和互谱法的水中目标识别 |
| 2. | The estimation of the phase difference of two vibration signals of the same frequency by cross - spectral density
用互谱密度函数估算两同频振动信号的相位差 |
| 3. | For the next , it studies the theory of auto - cross spectrum density method and stochastic subspace identification method
其次,研究了自互谱法和随机子空间法的理论。 |
| 4. | For the development of data signal processing module of sound intensity , the cross - spectrum sound intensity technique is applied
对于声强数字信号处理模块部分，采用互谱声强技术作为其理论基础进行设计。 |
| 5. | The acoustic pressure information and particle velocity information are used to study the direction of the arrival estimation by analyzing strong linear spectrum of the single target basing on cross spectrum method
摘要利用矢量水听器收集到的声压和振速信息，研究基于互谱法分析单目标的强线谱来进行目标方位估计。 |
| 6. | By deducing the theory of this method , it comes to a conclusion that auto - cross spectrum density method is much the same as peak picking method based on frequency response function . and it also talks about the virtues and defects of the method
本文通过对相关理论的推导,说明了自互谱法与基于频响函数的峰值摄取法是近似相通的,同时对该方法的优缺点作了叙述。 |
| 7. | There is a focus on application of the stochastic subspace identification method in this article . for its defect in application of engineering , it also studies auto - cross spectrum density method which is classical in engineering , and it can be used as a supplement
针对随机子空间法在工程应用中耗时长的不足,本文还研究了工程应用中比较经典的自互谱法,该方法可以作为随机子空间法的补充。 |
| 8. | As a classical and practical method in ambient vibration experimental modal analysis , auto - cross spectrum density method replace the frequency response function with power spectrum and achieve its mode shape from transmissibility between the response signals and reference signal
自互谱法作为环境激励实验模态分析的一种实用的经典方法,用响应点和参考点间的功率谱曲线来代替频响函数曲线,并由响应点和参考点之间响应的传递率得出振型。 |
| 9. | Furthermore , residual interference is analyzed . in chapter six , principal component , cross - spectral metric , auxiliary - vector filtering and multistage wiener filtering are applied to study low - rank blind space - time multiuser detection with the generalized canonical representation in multipath channels
第六章基于最小方差盲空时多用户检测的广义正则形式，利用主成分方法、互谱度量方法、辅助向量滤波和多级维纳滤波，研究了多径条件下的低秩盲空时多用户检测。 |
| 10. | The results show that the difference of the properties between the two tv towers is great , and the influences of the structural high order modes as well as the structural cross spectral density on the internal force are obviously , so that this effects on structural internal force must be taken into account comprehensively in the aseismic design of tall tv tower
结果表明，洛阳电视塔与东方明珠电视塔的内力演变谱密度特性具有很大的差别，结构的高阶振型及结构的互谱密度对结构的内力具有较大的影响，因此结构的抗震设计应综合考虑这些因素对结构内力的影响效应。 |
