The frequency prediction of skywave propagation in shortwave band is the precondition of performance prediction of skywave communication circuit.
短波天波传播频率预测是短波天波通信电路性能预测的前提。
Firstly, this paper presents an improved prediction method of maximum usable frequency (MUF) of skywave propagation based on the analysis of the current shortwave frequency prediction method.
在对当前短波频率预测方法进行分析的基础上，提出了一种天波传播最大可用频率预测的改进方法。
Prediction probabilities for each context in the model are calculated from frequency counts, which are updated adaptively.
对模型中每个上下文的预测概率从频率数计算，进行自适应更新。
If the frequency of earthquakes is increasing, isn't prediction becoming more important?
如果地震发生的频率增加了，地震预测是否变得更加重要了？
This paper presents a prediction model of frequency parameters of short-wave communication based on non-singleton fuzzy system.
提出一种利用非单点模糊系统建模的短波通信频率参数预测模型。
Therefore, point and interval prediction for system efficiency can be realized through frequency of frequency converter.
因此可由变频器的频率对其效率进行点预测或区间预测。
During ionospheric storm periods, the existing prediction methods for the critical frequency of ionospheric F2 layer(foF2) can not satisfy the requirements of the practical applications.
在电离层风暴期，现存的电离层F2层临界频率预测方法不能满足实际应用的要求。
Two major control algorithms, fuzzy control algorithm of frequency and voltage and prediction control algorithm for switch-on, are analyzed in detail.
重点分析了准同期并列过程中涉及的主要控制算法：模糊调频、调压控制算法和合闸控制预测算法。
A frequency domain technique is presented to be used in speech coding to improve the performance of low order linear prediction (LP) in modeling of formants of voiced speech.
讨论了一个用于语音编码的频域技术，用以在浊音语音共振峰模型方面改善低阶数线性预测(LP)的性能。
The features of seismic signals are different between time and frequency domains. We can make reservoir prediction better with seismic signals in frequency domain.
地震信号在频率域和时间域表现出不同的特征，利用频率域的地震信号，可以更好地进行储层预测。
The use of absorption and in line with the speed, amplitude and frequency of seismic or other seismic information, Has its unique role and effectiveness of the reservoir cracks prediction.
利用吸收系数并配合速度、振幅和频率等其它地震或非地震信息，进行储层裂缝预测具有其独特作用和效果。
The main strength of wavelet analysis is that it can divide data-changing frequency infinitely and it is then possible to use according prediction method in the different frequency band.
本文中使用小波变换的主要优点是它可无限分频的能力，可以将具有不同变化规律的因素造成的价格波动变化分离出来，从而为针对性的寻找预测方法和规律提供了可能；
A cost function is presented, and by applying Gaussian-Newton type recursive prediction error based method, a stable and efficient online frequency estimation algorithm is derived.
在此基础上，建立了最小方差损失函数，并结合高斯·牛顿预测误差方法，提出了稳定的，高性能的，在线的复频率直接估计算法。
The prediction result was finally acquired by synthesizing the forecast values of the low frequency signal and high frequency signal.
低频信号和高频信号的预测值合成得到预测结果。
By the effect analysis of various special processing methods, a set of seismic prediction techniques of malignant leakage such as coherent analysis and frequency spectrum analysis are summarized.
通过多种特殊处理方法效果的分析，总结了一套较为有效的恶性井漏地震预测技术，如相干体分析、频谱分析等。
A prediction software for FBAR's resonance frequency was accordingly developed using VB interface, which is easily operated, and of significance for FBAR designs.
并在此模型的基础上，用VB编写了FBAR的谐振频率预测软件，该软件对FBAR的设计工作将会有很好的指导意义。
The prediction of fire's frequency is an important part of reducing and controlling fire in high-fire buildings. The key point calculating stochastic demand is to get the value of fire's frequency.
火灾概率预测是减少和控制高层建筑火灾的基本手段，计算非确定性需求的关键是确定火灾发生的概率。
In this thesis, a relatively systematic study of noise prediction from low-frequency tractor cab has been done. It provides a certain theoretical basis for reducing cab noise.
本文对拖拉机驾驶室内低频噪声预测进行了比较系统的研究，对降低驾驶室内噪声具有一定的理论依据和设计参考。
The key technology for prediction of prolific zone in the shallow gas reservoirs is bright spot identification of seismic response with "low frequency but strong amplitude";
针对浅层气藏天然气富集带预测的关键技术是“低频强振幅”地震响应亮点识别技术；
The key technology for prediction of prolific zone in the shallow gas reservoirs is bright spot identification of seismic response with "low frequency but strong amplitude";
针对浅层气藏天然气富集带预测的关键技术是“低频强振幅”地震响应亮点识别技术；
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