严格说来，所有的模拟时变信号。
Strictly speaking, all signals are analog time-varying signals.
提出了基于变时基短时傅里叶变换来分析和处理时变信号的技术。
Measuring and analyzing technology based on variable-time-interval Fourier transform was dealt with for vehicle accelerating noise signal.
在某型高炮随动系统的测试中，待测信号有非时变信号和时变信号两种。
In the testing of a certain antiaircraft artillery servo system, the signals needed to be measured are time-invariant signal and time-varying signal.
在第三章里，主要研究了频率时变信号（如频率捷变信号和线性调频信号）的定位算法。
Chapter 3 considers location of a stationary target with time-varying emitting signal, such as frequency hopping signal and linear FM signal.
内燃机曲轴轴承所受到的冲击信号是非平稳、时变信号，用传统的诊断方法难以进行故障的早期发现和诊断。
Vibration signals borne by different main bearing clearances are not stationary and time variant. It is difficult to early detect and diagnose by means of traditional methods.
在信号源不相关的情况下，通过对权矢量的循环使用和功率信号的更新处理，实现对DOA时变信号源的跟踪。
When signals are uncorrelated, by using the specific weights in turn and refreshing the power measurements continuously, the time-changed DOA of signals can be traced.
小波分析是一种日益获得广泛应用的信号处理新技术，它具有良好的时-频局部化特性，因而非常适于分析瞬态或时变信号。
Wavelet analysis, as a new technique of signal processing, possesses excellent characteristic of time-frequency localization and is suitable for analysing the time-varying or transient signals.
当小鼠自发性发作时，心跳变的更不稳定，暗示从大脑到心脏的信号被扰乱了。
When the mice had epileptic seizures, their heart beats became even more erratic - suggesting the signals from their brains to their hearts were disordered.
跟现实生活一样，你靠近交通信号灯时，它有时会从绿灯变黄灯，让你必须快速决定穿过或停下。
As in real life, the traffic lights sometimes turn from green to yellow as you approach them, forcing a quick go-or-stop decision.
作为一种日益获得广泛应用的信号处理新技术，小波分析具有良好的时频局域化特性，适应于时变和瞬变信号的分析。
As a new technique of signal processing, wavelet analysis has excellent characteristics of time frequency localization and is suitable for analyzing time varying or transient signals.
这种方法首先对非语言声音信号进行谐波分析，然后对所得到的时变振幅与频率等声音信号参数进行分段线性化。
This technique performs harmonic analysis of the nonspeech audio signals and then the resulted attributes including time-varying amplitude and frequency functions are piecewisely linearized.
变步长自适应数字滤波器的权值随信号和噪声的变化自动调整时可能出现不稳定。
Adaptive digital filters with variable step-size may become unstable when their weights are automatically adjusted with input signal and noise.
本文给出传输线两端驱动器的跃变存在时差时的信号传输图解方法。
This paper introduces a graphic method to show signal transmission of ECL transmission lines with asynchronous driving at both ends.
根据跳频信号瞬时带宽，将潜在跳频频率点邻域时频图投影到时域，分选潜在频率跳变点集合。
The potential temporal hopping point set is fetched from the temporal projection variance of the adjacent domain time-frequency image according to the instantaneous signal bandwidth.
水平失真触发：当信号变高或者变低，并保持此状态超过指定时间时触发。这是很有用的对于脉冲串的末端触发。
Level dropout: This detects an edge followed by a specified time with no edges. It is useful for triggering on the end of a pulse train.
时频分析方法分为线性、二次型和自适应等多种方法，它们提供了在时频二维平面上，分析信号时变功率谱的有效手段。
The methods of time frequency analysis include linear, quadratic and adaptive methods. They provide effective tools for analyzing signal time varying spectrum in time frequency plane.
阵列入射信号时变参数的联合跟踪，是我军在现代电子战中进行有效电子防御和进攻时需要解决的首要问题。
Jointly tracking the time varying parameters of array incident signals is the chief problem that our troops efficiently carry out electronic defense and offense in modern electronic war (EW).
由于同步误差与信息信号无关，从而实现了大幅度、快时变信息信号的混沌调制通信。
Since the synchronization error is independent of information signal, the chaotic modulation for large amplitude and fast varying information signals can be achieved.
提出了一种新颖的时变模糊控制器计算可变开-关信号序列从而达到控制输出要求。
A novel time - varying fuzzy controller is presented to compute the variable on - OFF signal sequence to achieve control requirements.
冲击故障的振动响应信号是时变的，用传统的诊断方法一般难以进行早期发现和诊断。
Vibration response signal of impulse fault is generally time variant. It is difficult to early detect and diagnose by means of traditional methods.
本文提出当信道增益为时变函数时，利用自适应控制器来补偿信道增益的变化，以便在接收端能准确地恢复出信息信号。
In order to recover the message carrying signal at the receiving end, we use adaptive controller to compensate the variation of channel gain when the channel is time-varying.
而异步电机是一个多变量、强耦合、非线性的时变参数系统，很难直接通过外加信号准确控制电磁转矩。
But asynchronous machine is a multivariate close coupling non - linear time - variable parameter system. And it is difficult to control by rule and line through adding exterior signal directly.
人体系统是一个时变非线性的复杂系统，脉象是人体系统的输出信号。
The system of human body is a complex time - varying non - linear system and pulse condition is one of the output signals of human system.
在换低速档时，根据从变速装置的输入轴转速的信号求得的实际车速，来设定发动机转速的目标值。
At a shift-down time, the target value of the engine speed is set according to the actual speed determined from the signal of the input shaft speed of the transmission system.
给出了循环平稳随机信号的LPTV时变参数信号模型及该模型参数与信号循环统计量之间的关系。
Present a time-varying parametric model that is LPTV type, and study the relationship between model parametrics and cyclostatistics of its ouput signal. ?
野外采集的地震信号是多种波的复合体，是一种时变的非平稳信号。
The seismic signal acquired in the field is a complex of different waves and a time variant non stationary signal.
在设备发生故障时，其故障信号往往具有时变特性。
The fault signals always showed the characteristic of non-stationary.
在设备发生故障时，其故障信号往往具有时变特性。
The fault signals always showed the characteristic of non-stationary.
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