Under the condition of " comparatively weak correlation between the two noises involved , coherence function is used as a frequency domain amplification factor for improving snr of the output signal to the filter and the speech enhancement effect . meanwhile , a real - time recursive algorithm is put forward in substitute for current algorithms based on short time fourier transform . the new algorithm will simplify computations and will be suited for real - time implementation together with the adaptive systems 接着针对上述nanc系统两路输入信号噪声相关性弱的情况,用相干函数作频域增益因子来提高输出信噪比与改善语音增强效果,同时,通过一种实时迭代算法解决了短时傅氏变换计算量大的问题,简化了计算,便于实时处理与实际应用。
On the basis of looking up a lot of referenced works , the phenomenon that lateral jet injected into the external air stream surrounding an intercepting missile is analyzed . the effects of jet interaction on forces and moments are described by interaction amplification factor , and the algorithm to calculate the interaction amplification factor is presented , then the motion model and the dynamics model of interceptor are established according to the previous analysis 根据大量参考文献的结论,分析了侧向喷流射入拦截弹外流的流场特征,以干扰放大因子来描述干扰效应对力和力矩的影响,给出了放大因子的计算方法,进一步建立了喷流侧向力和空气动力作用下的导弹运动学和动力学模型。
Stability of seismic resistance and dynamic response analysis for ash dams . by psedo - static analysis and seismic dynamic response analysis with fem , safety coefficient under designed seismic force , stress , strain and acceleration amplification factor have been provided . based on upper analysis , related computing program has been provided . by applying it to the ash dams of qinghe power plant , good agreement has been found between calculation results and real conditions 通过上述一系列的理论分析,本文最后给出了用于评价灰坝坝体稳定的计算程序,并在清河电厂的灰坝计算中得以应用,结果显示计算收敛快,稳定性好,结论与实际情况吻合。
( 2 ) the lateral deformation is effectively limited by reinforced earth layers and the settlement becomes small . @ the lateral deformation is enlarged on soft foundations , and the settlement becomes large . @ the reinforced earth layers on soft foundations behaves extension . the response behaviors of high sand - gravel embankment are indicated as the following : ? he amplification factor of earthquake acceleration varies with reinforced earth structure . ( 2 ) the basic frequency of the original embankments in different reinforcement conditions is about 0 . 76hz . ? the amplitude of dynamic deformation appears small and the dynamic stability is safe 研究表明:加筋土体能有效地限制路堤的侧向位移发展,减小沉降变形量;软基路堤的侧向位移较大,将显著地增大路堤的沉降变形;软基上加筋土垫层中产生的拉应力最大;加筋砂砾土路堤在振动荷载作用下动变形反应较小,具有良好地动力稳定性。
On the contrary , the degree of saturation plays an important role on p - wave propagation , if incidence is 90 degree . the amplification factor on surface related to the response of bedrock is the biggest if the media is one - phase media , and the factor is the smallest if the media is unsaturated media ( sr > = 90 % ) P波从底边界垂直入射时,饱和度对地表土层的反应有显著的影响。就地表土层位移和加速度相对于基岩的放大倍数来说,一般有这样的规律:单相土的放大倍数最大,欠饱和土的放大倍数最小,饱和土的放大倍数居中。