frequency error的例句大全

Study on Power Frequency Error of SPWM in Active Inverters

有源逆变中SPWM工频误差问题的研究

A new tool that can test the clock base frequency error of energy measuring devices and provide GPS standard time to calibrate real-time clock was introduced in this paper.

介绍了一种用来测量电能计量装置的时钟基频误差，并提供GPS标准时间以校准其实时时钟的新型工具。

Based on the definition of radar tracking target angle velocity maximum and acceleration maximum, relates the feasibility to represent the angle tracking characteristic, and the simulation way of the low frequency error signal is discussed.

基于雷达跟踪目标最大角速度和角加速度的定义，分析了用雷达跟踪目标最大角速度和角加速度表征雷达跟踪性能的可行性，并对角误差信号的模拟方法进行了讨论。

Especially forgetting factor ECAB has excellent performance under large cyclic frequency error.

特别是遗忘因子ECAB算法，在循环频率误差较大的情况下，仍能保持很好的性能。

Their basic frequency error performance and probability of loss-of-lock at various signal-to-noise ratios is compared by tracking a common simulated high-dynamic trajectory.

并以均方根估计误差和失锁概率为性能指标，通过对同一模拟的接收机高动态轨迹的跟踪估计，比较了两种不同估计技术的基本性能。

Moreover the Doppler center frequency error due to instability of antenna pointing is studied. According to the offsets of SAR imaging dependant on the Doppler center frequency error, the required stability of antenna pointing is given.

研究了天线指向不稳定造成的多普勒中心频率误差，根据多普勒中心频率误差与图像位置偏移的关系，给出了图像质量对天线指向稳定度的要求。

Experimental results show that this method can measure the signal frequency error effectively and accurately.

实验证明，该方法能够有效地精确测量信号的频率误差。

Robust Cyclic Adaptive Beamforming under Cycle Frequency Error

针对循环频率误差的稳健CAB算法

Analysis of Distortion Resulting from Frequency Error and Phase Error in Synchronous Demodulation

频率误差和相位误差在同步解调中的失真分析

To achieve fine symbol timing, a loop controlled by numerical controlled oscillator ( NCO) was used to track the residual timing error and the sampling frequency error after coarse timing acquisition based on a preamble.

基于前导字进行粗同步估计，并采用数字控制振荡器（NCO）控制的环路对残留符号定时误差和采样频率偏差进行跟踪补偿，以获得精确符号同步。

The frequency-domain MOR approaches have been fully developed, but we are more interested in the time domain response of the circuits for the frequency domain approximation error can be magnified greatly by the frequency-time conversion.

频域模型降阶方法的研究已较为成熟，但对电路而言，更关注的是其时域行为。频域逼近的误差转换到时域会放大，时域逼近精度无法保证。

The measuring method based on multiplier and beat frequency, it's device is cheep, provided against error from dynamic character of the filter.

本文利用乘法器差频法对频谱进行简易测试的方案有设备价格低廉、避免滤波器动态特征引入的误差的优点。

Analysis of Frequency Synchronization Error in Spaceborne Parasitic SAR System

星载寄生式SAR系统频率同步分析

The new spaceflight TT& C system aims at digital system, the intermediate frequency digital transmitter which base on software radio theory has the characteristics of universal, flexible and low bit-error rate, and it is an important part of modern radio communication system.

新一代航天测控系统正朝着数字化的方向发展，而基于软件无线电理论的中频数字化发射机及接收机具有通用性、灵活性、误码率低的特点，已经成为现代无线通信系统的重要组成部分。

This paper analyses reasons of reading error during counter sampling of separated frequency and CTC, propose the solutions and nonlinearity correction with computer software.

分析了分频和CTC计数采样中误读数的原因和解决方法，并利用微机软件实现非线性校正。

Using this method, the time error, frequency deviation and aging is simulated. Mean while, the Allan variance after controlling is compared with Allan variance before controlling.

采用这种方法对钟差，频率偏差和老化系数进行了计算仿真，同时对滤波前后的阿伦方差进行了比较。

A New Method for On-machine measurement of Roundness& Error Separation Technique of Parallel Three-probe Method in Frequency Domain

三平行传感器式频域法误差分离技术&在线测量圆度误差的新方法

when local carrier absolute frequency offset equals half of consecutive subcarrier frequency spacing at the transmitter, that is to say, when relative frequency offset reaches 50%, the probability of symbol error deteriorates to fifty percent.

当本地载波的绝对频偏达到发送相邻子载波频率间隔的一半，即相对频偏达到50%时，系统的误符号率恶化为50%。

Most of the conventional data fitting methods use orthogonal polynomials, which have shortcomings such as lowering the dominant frequency, distorting the breakpoint and the enormous error, etc.

在传统的地震数据拟合技术中大都采用正交多项式拟合方法，这种拟合方法的拟合结果存在拟合不够准确的缺点，导致处理后地震数据的主频降低、断点变形。

An method for the compensation of the frequency dependent systematic error of time-division multipliers

时分割乘法器与频率有关的系统误差校准方法