The probationary period plan estimates the signal power spectrum;
试用周期图法估计信号的功率谱；
Estimate the signal power spectrum from recorded traces in neighbouring pairs.
其二是利用两两毗邻的记录道来估计信号功率谱。
From the differences of the vibration acceleration signal power spectrum, the cylinder clearance can be diagnosed, so that whether the engine may be repaired or not can be determined.
根据不同的振动加速度功率谱，可以诊断出气缸壁间隙值以确定柴油机是否需要修理。
Through collecting vibration signal and analyzing it in the frequency domain in the condition of changing parameter cutting, a single self power spectrum is hard to detect tool breakage effectively.
在变切削参数的加工工况下，通过对振动信号的采集和频域处理，发现采用单一的自功率谱方法难以有效检测出刀片破损。
Meaning: The self-correlation function and power spectrum density Function of a power-typed signal compose a FT pair.
上式表明：功率型信号的自相关函数与其功率谱密度函数构成傅立叶变换对。
These new capabilities extend the analysis power of Agilent's signal and spectrum analyzers, enabling them to address even the most difficult application challenges.
这些新性能扩展了安捷伦的信号和光谱分析仪的分析能力，使它们能满足甚至是更难的应用挑战。
This algorithm has utilized the signal to carry on the signal characteristic that Fourier includes in the density of the power spectrum after Fourier transform.
算法利用了信号进行傅里叶变换后功率谱密度中所包含的信号特征在基带完成，并用软件实现。
The power spectrum of the noise and signal are estimated by the average smooth periodogram method.
用平均平滑周期图法分别估算出信号与噪声的功率谱密度函数。
Spectrum zoom technique and power cepstrum are two important aided methods in vibration signal analysis.
频谱细化技术和功率倒频谱是振动信号分析的两种重要辅助方法。
In this paper, a real time power spectrum analyzer of low frequency random signal based on digital filters is introduced, and a design method of real time arithmetic is given.
文中介绍了基于数字滤波的低频随机信号实时功率谱分析仪的实现方法，并给出了实时算法的设计要点。
Power spectrum analysis is always used in spectrum analysis of cavitation noise. However, it is obviously unfit for research on the transient signal such as cavitation noise.
空化噪声的谱分析一般采用功率谱分析，而功率谱分析在研究空化噪声这种具有很强突变性的信号具有明显的缺陷。
In this method, eigen-decomposition does not have to be used, and the direction spectrum is the power spectrum in common sense (it can be used to estimate signal power).
本方法不需要特征分解，并且得到的是通常意义上的功率谱(可用于估计信号的能量)。
In this paper, a method evaluating small signal gain spectrum of optical fiber amplifier only using a small power broadband light source was proposed.
提出了一种用小功率宽带光源较精确测量光纤放大器小信号增益谱的方法。
A method for time domain fast diagnosis of a signal of the characteristic changes, of the power spectrum is proposed.
本文提出了在时域中快速诊断信号功率谱特征变化的方法。
Based on the analysis, a new method to detect carrier frequency of FSK signal named time-domain joint and modern power spectrum estimation is put forward.
对电力远动通道FSK信号进行了时域和频域分析，在此基础上提出了一种新的FSK信号载波频率测量方法—时域拼接结合现代功率谱估计的方法。
It mainly includes signal acquisition, statistical analysis, time domain analysis, autocorrelation analysis, spectrum analysis, self-power spectrum analysis, etc.
动态特性信号分析主要功能包括信号采集、统计分析、时域分析、自相关分析、频谱分析、自功率谱分析等。
The out band spurious spectrum is limited by raised cosine filter in transmitter, and the shadow effect can be removed by combining the signal power of two branches in receiver.
阅读器的反射电路用升余弦滤波器抑制带外频谱，而接收电路可以用功率合成的方法消除的盲点效应。
The classification technique uses various features of the signal amplitude, frequency, and power spectrum applied to the fuzzy classifier.
本文研究了一种基于模糊分类的调制信号识别方法，即提取信号时域、频域、功率谱等统计特性，利用模糊分类器进行分类识别。
The continuous phase modulation has the constant amplitude and its phase is continuous, which make the signal has a very good power spectrum.
连续相位调制由于其具有恒定包络幅度且对任意的调制信息序列能保持信号的相位连续，从而能够有效的改进信号的频谱特性。
In signal processing field, the spectrum correlative technology has more advantages than the conventional power spectrum method, because the latter includes less information.
在信号处理中，传统的功率谱分析方法包含的信息量少，谱相关方法较前者具有更多优点。
It has the advantages of both the PER method and the ar method, and is mainly used to estimate the power spectrum of a short signal composed of harmonic components with random noise.
该方法吸取了PER方法和AR方法各自的优点。它主要适用于短的谐波加随机噪声信号的功率谱估计。
Traditional speech signal processing is based on FFT power spectral analysis, in noisy condition, the spectrum of noise and speech signal are processed in the same way.
传统语音信号谱特征的提取是基于FFT 的能谱分析方法，在噪音环境情况下，对噪音的频谱成分与语音信号的频谱成分的处理采用“平均主义”的原则。
Unlike spectrum analysis, without multiplication, the processing is made at high speed, its results have no connection with power of the signal.
与频谱分析法相比，它不需要进行乘法运算，因而处理速度快，分析结果与信号能量无关。
Due to its low power spectral density, the Direct Sequence Spread Spectrum signal (DSSS) is always submerged with the back-ground noise, so that it is difficult to reconnoiter the signal.
直接序列扩频信号具有较低的功率谱密度，信号淹没在背景噪声中，侦查难度较大。
Typical RF & uW instruments: signal generators, spectrum analyzers, network analyzers, power meters, receivers and so on;
典型的射频微波类测试仪表：信号源、频谱分析仪、网络分析仪、功率计、接收机等等；
To resolve this problem, this paper designs an improved algorithm based on the power spectrum of OQPSK signal and the feedback structure.
针对这一问题，该文将OQPSK信号的平方谱与载波同步环路相结合设计了改进算法。
The power spectrum analysis based signal processing method was studied.
研究基于周期图谱分析的涡街信号处理方法。
Due to its low power spectral density, the direct sequence spread spectrum signal is always submerged with the back-ground noise, so that it is difficult to reconnoiter the signal.
直接序列扩频信号具有较低的功率谱密度，信号淹没在背景噪声中，侦查难度较大。
Correct noise power spectrum estimation and apriori signal-to-noise ratio (SNR) estimation are all essential to good quality of the enhanced speech.
噪声功率谱估计和先验信噪比估计的准确性有助于提高增强后的语音质量。
Correct noise power spectrum estimation and apriori signal-to-noise ratio (SNR) estimation are all essential to good quality of the enhanced speech.
噪声功率谱估计和先验信噪比估计的准确性有助于提高增强后的语音质量。
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