同原有的模拟处理方式相比，具有更准确跟踪频率和可控带宽等优点。
Comparing with the former analog ones, it has good performance in accurate frequency trace and band control.
采用递推傅氏算法测频，动态跟踪频率变化，实时调整采样率进行定点采样；
The recursive Fourier algorithm is used in frequency measuring to dynamically track the frequency change and real-timely adjust the sampling rate for fixed sampling points.
只要信噪比不甚低，频点自跟踪频率估计是无偏的且估计方差接近理论下限。
FATAFE realizes unbiased estimation and its estimated variance approaches to theoretical lower bound if only signal-to-noise ratio is not very low.
低阶锁相环跟踪频率斜升信号时产生的稳态相差致使环路失锁，接收机无法锁定载波信号。
Due to steady phase error, low-order PLL has a trouble in tracking frequency ramp signals, so that the receiver cannot lock carrier signals.
但由于截断信号会产生频谱泄漏，使得相位和频率计算结果有一定误差，采用该方法跟踪频率，实时计算电网变化的频率速度较慢。
The spectral leakage caused by the truncated signals results in frequency calculation error and slows frequency tracking. A Hanning windowed recursive DFT method is introduced.
这些机构还跟踪一个人申请信贷的频率。
The agencies also track the frequency with which a person applies for credit.
由相同的研究人员所作的一项跟踪调查则发现，志怪小说是Leeville市每个公共图书馆外借频率最高的一类图书。
A follow-up study by the same researchers found that mystery novels were the most frequently checked out books from each of the public libraries in Leeville.
一些用户可能想分析跟踪信息，可能对调用每个模板的频率进行计数。
Some users may want to analyze the trace information, perhaps counting how often each template was invoked.
该过程总结收集到的跟踪，并列出调用给定存储过程的频率，以及所有调用总共花费的时间。
This procedure sums up the collected trace and lists how often a given stored procedure was called and how much time passed for all calls.
全面分析了一种保护用软件频率跟踪算法的性能，论证了在无噪声干扰的情况下该算法的有效性。
A software based frequency tracking algorithm for protective relaying is analyzed thoroughly. in this paper, the availability of this algorithm under the non-noise condition is proved.
这种方法采用频率搜索和跟踪相结合，软件和硬件相结合，以适应发射频率的快速变化。
This kind of method, combining search with track, combining hardware with software, can adapt the quick change of transmission frequency.
本文从旋转变频磁控管式频率捷变雷达的本振频率跟踪原理出发，分析了产生本振频率跟踪误差的主要因素。
The' main factors resulting in local frequency tracking error are analyzed based on the principles of the tracking local oscillator for frequency agile radars of rotary tuning magnetron type.
系统高精度、低成本，适用于任何状态的导航以及高频率的输出，可以用于诸如载体跟踪、航空、自动采矿以及精细农业等广泛的应用领域。
Due to its high accuracy, low-cost, full navigation states, and high output rate, the system has wide applications, such as vehicle tracking, aviation, automatic mining, and precise farming.
最后用这些变量调节本地振荡频率，以跟踪载波频率。
Finally, these judged variables adjust the local oscillating frequency to track the carrier frequency by NCO.
功率放大器可以实现交流信号的准确跟踪和放大，输出频率范围可达1000赫兹。
And the power amplifier can realize accurately tracking and amplification for ac signals with frequency range up to 1000hz.
频率跟踪是超声波电源的一个重要特性。
Frequency tracking is an important characteristic of ultrasonic power.
由于现有瞬时测频技术精度的限制，无法直接对其频率跟踪精度进行检定。
For the limitation of the accuracy of IFM technology, the frequency tracking accuracy can't be examined directly.
频率跟踪电路是超声波发生器中的一种特殊电路。
Frequency tracking circuit is one of the special circuits used in the ultrasonic generator.
介绍了一种用频率跟踪法测量木工机床切削功率的新方法。
Introduced a kind of new method by means of frequency track method to measure cutting power of woodworking machines.
流体密度的检测是采用自激振荡原理和频率跟踪法得到的。
Fluid density is measured by self push resonant principle and frequency tracking method.
它具有很高的时频分辨率、能量集中性和跟踪瞬时频率等特性。
It has the properties of high time-frequency resolution and energy concentration as well as tracking instantaneous frequency etc.
通过调整同步环路的环路增益，可以获得更好的频率跟踪性能。
Better carrier frequency tracking performance can be gotten by adjusting the loop gain.
研究了谐振子频率的温度特性并设计了频率跟踪带通滤波器。
Studies the resonator frequency temperature characteristic, then designs the middle-frequency tracking band pass filter.
锁相系统是一个能够跟踪输入信号频率和相位的闭环自动控制系统。
The phase-locked system is a closed loop automatic control system that can follow the frequency and phase of the input signals.
系统的分析了频率跟踪移相PWM控制全桥供电的串联谐振负载式DBD型臭氧发生器电源系统的工作过程。
The working processes of the frequency-tracking phase-shift PWM controlled full bridge power supply load series resonant type DBD ozone generation power system are analyzed.
流体密度的检测是采用自激振荡原理和频率跟踪方法得到的。
Fluid density is measured by self-push resonant principle and frequency tracking method.
采用具有频率自动跟踪系统的超声清洗设备对滤布进行强化清洗试验。
The experiment of filter fabric ultrasonic cleaning is fulfilled by the ultrasonic cleaning device with frequency auto-tracking system.
本文对具有自动频率跟踪和反馈稳幅功能的电磁振动机械进行了研究。
The electromagnetic vibrational machine which has function of automatic frequency follow-up and stable amplitude was studied.
文中着重讨论了本振频率冷跟踪误差问题。
There are two kinds of errors, cold tracking error and post-hot-tracking error.
基于正交变换，提出了一种新的电网频率跟踪方法。
Based on orthogonal transform, a new method of tracking power grids frequency has been provided.
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