The signal distortion during wave propagation from the earthquake sourc e to the surface and the influence caused by the recording system as well as the sampling procedure are discussed, The general principles and concepts in seism ic signal processing are introduced, The detailed discussing on a simple RC filter shows some general concepts of the system theory, suc h as linear and time invariant system, Fourier and Laplace transform, convo lution, frequency response function, transfer function and pole, All these conc epts are the fundamentals of digital seismology.
讨论了地震波在传播过程中可能引起波形变化的一些因素以及记录系统和采样处理过程所产生的影响，介绍了地震信号处理中的一般原理和概念，通过对简单的RC滤波器的讨论，揭示了系统理论的一些基本概念，如线性时间不变系统、傅里叶变换和拉普拉斯变换、褶积、频率响应函数、传递函数和极点等，为讨论数字地震信号的处理奠定了基础。
Phase shifts, propagation distortion and poor transient response were measurable and audible with virtually all loudspeakers.
几乎所有的扬声器的相移，传播失真和瞬态响应不佳都是可以测量到和听到的。
After estimated and stored error propagated distortion values for each frame, added a parameter used for indicating error propagation of temporal and snr layers into the rdo model. based on these encoding parameters, carried out an optimal macroblock mode decision scheme.
该算法在分析了差错信道下传输可伸缩视频流误差扩散失真的基础上，在率失真优化模型中引入时间和信噪比分级的误差分级参数，并根据信道状态自适应地确定宏块编码模式。
In this paper, we addressed a novel rate-distortion optimized coding algorithm for SVC. After source-coding distortion and error propagated distortion values had been estimated and stored for each frame, a parameter used for indicating error propagation of temporal and SNR layers was added into the RDO model. Based on these encoding parameters, an optimal macroblock mode decision scheme was carried out.
本文提出一种基于SVC的率失真优化编码算法，该算法在分析了差错信道下传输可伸缩视频流的编码失真和误差扩散失真基础上，在率失真优化模型中引入时间和信噪比分级的误差分级参数，并根据信道状态自适应地确定宏块编码模式。
The result shows that this equation can get more reasonable result than traditional Rapid Distortion Theory applied to turbulent combustion. Some phenomenological models were applied to the zero-dimensional model to simulate the working process of turbocharged spark ignition engine, such as working fluid property, the flame propagation process et al as well as the quasi-dimensional combustion model.
在零维计算模型的基础上，通过引入现象学子模型，建立了基于湍流卷吸燃烧模型的火花点火增压发动机整体工作过程计算程序，突出了火花点火增压发动机的工作特点，在工质物性计算、火焰在燃烧室中传播的几何关系、已燃与未燃双区之间的热量传递、压气机特性的数值计算等方面，力求有所创新。
Non-linear harmonic US signals may arise also in tissues themseles due to a distortion of the sound wae during its propagation through the tissue.
非线性的谐波超声信号也可以在组织本身中产生，原因是在组织中传播时声波的变形。
To obtain the total distortion of a certain human face ROI in comprehensive optimization, we constructed a human face ROI temporal propagation alternative chain based on forward motion search.
为了统计综合优化中人脸ROI所造成的总失真度，本框架提出了一种基于前向运动搜索的人脸ROI时域扩散替代链的构造方法。
Because of OFDM system is very sensitive to frequency offset, and the propagation environment of wireless channel is poor, causing amplitude and phase distortion of the transmission signals, and limiting speed of them.
由于OFDM系统对频率偏移非常敏感，而无线信道传播环境恶劣，会引起传输信号幅度和相位的畸变，限制信号的传输速度，因此可靠的信道估计是OFDM系统实现高速数据通信的关键。
The distortion of FM pulse wave propagation in homogeneous plasma layer
调频脉冲通过均匀等离子体层产生的畸变
Distortion caused by partial discharge propagation along power transformer winding
局部放电信号在电力变压器绕组传播过程中的畸变
The approach to the solution of the Fourier integral in closed form is adopted for pulse propagation through rain medium. And pulse distortion, in terms of percentage changing in pulse width, is studied in this paper.
在此基础上应用傅立叶时域积分近似解的方法研究了毫米波段脉冲波通过雨介质时，脉冲畸变随频率、降雨率、传播距离及脉冲宽度变化的关系。
Existing methods for travelling wave fault location seldom consider the attenuation and distortion of travelling wave propagating in transmission line and do not solve the problems to define the arrival time of travelling wave and the propagation velocity properly, which leads to poor location accuracy.
一般行波故障测距法较少考虑行波传播的色散情况，没有很好解决如何精确确定行波的到达时间和行波传播速度等问题，使测距精度受到影响。
Propagation Distortion and Coding Efficiency in Multi - hypothesis Motion Compensated Prediction
多参考运动补偿预测中的误码传播和编码效率
When the high rate data is transmitted through bandlimited channels in mobile communications, the intersymbol interference (ISI) caused by channel distortion and multipath propagation will bring decoding error. It needs to adopt appropriate techniques to remove or reduce this kind of interference.
当在带限信道上传输高速数据时，会因为信道畸变和多径效应产生的码间干扰而产生误码，这就需要采用适当的技术来消除或减少这种干扰。
The difference of wave with different wavelength propagation velocity may lead to waveform distortion because of dispersion.
由于色散的原因，当不同波长的机电波在系统中传播时，传播速度不相同，会导致波形出现畸变。
It is found that the pulse distortion is affected by the visibility, frequency, pulse width and path length. Both broadening and compression of pulse can occur according to the values of second derivatives of the propagation constants.
本文还进行了脉冲畸变仿真，得出影响脉冲畸变的规律，讨论了脉冲展宽与压缩随传播常数二阶导数的关系。
By comparing the increased quantization distortion and reduced propagation distortion of one frame approximately, the encoder can quickly determine whether it is necessary to INTRA-update a MB.
编码器通过直接计算出编码一帧图像可以得到的最小量化失真度，评估MB帧内更新所增加的总量化失真度和减小的扩散失真度，决定是否需要对此MB进行帧内更新。
The severe inter-symbol interference, caused by multi-path effects and channel distortion of sound propagation, degrades the reliability and decreases the rate of the propagation, is the chief obstacle of high speed underwater sound correspondence.
水声通信中广泛存在的多径衰落和信道失真导致的码间干扰大大降低了水下数据的可靠性和传输速率，是高速水声通信的主要障碍。
Distortion of shapes of nonlinear wave and effects of initial frequency and initial amplitude on nonlinear characteristics of wave propagation are discussed.
讨论了非线性波的波形畸变特性，分析了初始频率和初始幅值对波的非线性特征的影响。
The essence and deficiency of the conventional modelling method based on exponentially damped oscillatory waves are analyzed, and an improved modelling method based on the distortion phenomenon in propagation of the vibration signals of circuit breakers is proposed.
分析了常规的指数衰减振荡波建模方法的实质和不足，提出了基于断路器振动信号传播中畸变现象的改进型建模方法。