但实际运用时，其精度都会受到采样定时误差和信号频率偏移的影响。
The frequency shift is obtained and compared with the effect of air damping.
考虑到短波信道频率偏移的不确定性提出了相关搜索、FFT捕获的信号捕获方案。
Considering the uncertainty of frequency excursion, the scheme of signal capturing of correlate searching, FFT capturing is bring forward.
方案利用时频联合估计来得到可靠的信号检测，并从导频符号估计时间和频率偏移。
Based on joint time and frequency offset estimation, a reliable signal detection scheme is obtained by modulated pilot symbols using an m-sequence.
当信号从原中心频率偏移，信号越来越从设定的发射通道偏移，功率分析仪的功率电平会越来越低。
As the signal is shifted from the original center frequency, the RF power analyzer reads lower and lower power levels as more and more of the signal shifts out of the intended transmission channel.
多普勒不仅造成宽带水声通信信号的载波频率偏移，而且引起码元符号的展宽或压缩。
Doppler effect causes not only carrier frequency offset, but also symbol expansion or compression for wideband acoustic communication signal.
雷达测速仪是利用多普勒测速原理，获得运动目标的频率偏移信号。
Police traffic radar USES the theory of Doppler speed detection to measure the offset of the frequency.
通过对地面卫星信号覆盖区内的多普勒频率偏移及不确定性范围的计算，给出了卫星导航系统信号的多普勒频率偏移与接收机位置之间的关系。
By calculating the Doppler shift and its uncertainty in the signal covering area, the relation between Doppler shift and the position of the receiver is obtained.
随着电压VCTR改变，VCO 104改变VCO输出信号的频率，使得当pll 100处于锁定模式时引起脉冲偏移和增大的输出抖动，如图中虚线202所示。
As the voltage VCTR varies, VCO 104 varies the frequency of the VCO output signal, causing phase offsets and increased output jitter when PLL 100 is in lock mode, as shown by dotted line 202.
它可以通过改变信号的类型、频率、幅值、偏移量等参数值求取对应的周期信号和随机信号的幅值特征值。
Through changing some parameters such as type, frequency, amplitude, offset, and so on, it can get the amplitude eigenvalue that corresponding with the cycle signal and the stochastic signal.
从相关函数的基本原理出发，分析了频率偏移对信号测量准确度的影响。
According to the fundamental principle of correlation function, the effect of measuring accuracy resulting from frequency deviation is analyzed in this paper.
如果有人通过，由运动人体返回的超声信号会因为多普勒效应而产生频率偏移。
Once someone passes, based on the Doppler effect, the frequency of the signals reflected by the moving body is different from the signals transmitted.
本文分析了采样钟频率偏移对MIMO-OFDM系统接收信号的影响，提出了一种适用于MIMO-OFDM系统的采样钟频率偏移估计算法，即幅度加权最小平方估计法。
The effect of sample frequency offset on MIMO-OFDM signals is exploited. An amplitude weighted least squares estimation of sample frequency offset in MIMO-OFDM systems is presented.
频率估计装置57、定时估计装置58分别将频率偏移量和定时偏移量通过控制信道从移动台接收的信号中检测出来。
Frequency and timing estimating units (57, 58) measure frequency and timing offsets, respectively, from a signal received from a mobile station via a control channel.
梯形小波函数具有平坦的频率特性，因而梯形小波变换较容易捕捉到信号的频率偏移。
By comparison with other wavelet functions, trapezoid complex wavelet function has even frequency characteristic, and so trapezoid complex wavelet transform easily catch frequency deviation.
梯形小波函数具有平坦的频率特性，因而梯形小波变换较容易捕捉到信号的频率偏移。
By comparison with other wavelet functions, trapezoid complex wavelet function has even frequency characteristic, and so trapezoid complex wavelet transform easily catch frequency deviation.
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