查询词典 audio frequency

Fourier transformation in time domain and frequency domain is one of the main methods for modern railway signal detection.

时域分析和傅氏变换的频域分析方法是现代铁路信号检测的主要方法之一。

The interval of frequency sweep in FRA is recommended to be 5 kHz.

提出频率响应法对扫描频率的间隔要求可选择为5kHz。

Fractional fourier transform ; hermite function ; time frequency analysis

分数阶傅立叶变换； Hermite函数；时频分析

Indices, including average line loading, average line flow limit per MW served, line investment ratio are proposed to quantify the stress level of the system, while the probability distribution function of fractional load shed and total failure components, cascading failure frequency, and risk are used for the risk analysis of cascading blakcouts.

论文提出了网络利用率、单位平均投资和线路投资比等指标，对系统的临界水平进行量化；并采用连锁故障灾难度的概率分布函数、连锁停电事故频度和风险等指标分析电力系统的连锁故障风险。

An adaptive notch filter is presented to analyze integral and fractional harmonics of variable fundamental frequency.

摘要采用自适应陷波滤波器实现基波频率可变的多谐波(包含整数次谐波和非整数次间谐波)分析。

Lottery numbers from the previous term: the number of areas continue to be the focus of a number, fractional area code is only a single frequency is relatively high, the largest single missing code disk 7 has exceeded history.

从前期开奖号码来看：中数区继续成为出号的重点，小数区仅单码1出现频率相对较高，盘中遗漏最大的单码7已突破历史记录。

The method has been successfully employed in computer simulation for the fractional frequency transmission system.

该方法已成功地应用于分频输电系统的模拟仿真计算。

By using time and frequency information at the same time, the fractional Fourier method could lower transmission power.

该方法同时融合了信号在时域和频域的信息，并可以进一步降低发射功率。

It may be possible to further fractionate total respiratory resistance into central and peripheral components by using the frequency dependence of forced oscillatory effective resistance.

利用强迫振荡有效阻力的频率依赖性可以进一步分离中心和外周呼吸阻力。

More than 30 million products have already shipped using FRAM, including metering, radio frequency identification and smart-card devices.

已经有3000多万台使用FRAM的设备交付使用，包括测量仪器、RFID和智能卡设备等。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。