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- This paper concerns relative technologies about carrier frequency synchronization and estimation in downlink signal in large doppler frequency shift condition. 本文对大多普勒频移情况中，下行信号载波频率同步估计的相关技术进行了研究。
- If the carrier frequency by changing the method to send binary symbols, is the frequency shift keying (FSK) method, when the "1" when there is low frequency, "0" when there is a high frequency. 如果用改变载波频率的方法来传送二进制符号，就是频移键控（FSK）的方法，当"1"出现时是低频，"0"出现时是高频。
- pilot carrier frequency shift 导频频移
- carrier frequency shift 载波频率偏移
- Frequency-modulation Phase Noise: -90 dBc/Hz (When shift 100 KHz from Carrier frequency) The performances are satisfactory to the user. 在偏离载频100kHz处的调频相位噪声<-90dBc/Hz;该振荡器性能已满足使用单位的要求。
- Carrier frequency offset is one of the key problems in OFDM system. 摘要载波频率偏移是OFDM系统实现的关键问题之一。
- An oscillator for generating the carrier frequency of a transmitter. 主控振荡器产生载波频率的振荡器
- sub carrier monitoring instrument 副载波监测仪表
- There are numerous patented technologies which can be piggybacked individually or collectively onto a carrier frequency to elicit all kinds of effects. 在一个载波频率上有着众多的专利技术，它能个别偷偷的或集体的引起所有种类的影响。
- The earth's rotation and its motion around the sun add an appreciable frequency shift. 地球自转与地球绕日公转产生附加的频移。
- And then we introduce server interpolate algorithm to calculate channel information of the other sub carriers. 通过导频子载波估计得到的信道信息，我们介绍了几种插值算法来得到其它子载波上的信道信息。
- The modulating signal is a slowly varying signal - as opposed to the rapidly varying carrier frequency. 调制信号是一个缓慢变化的信号作为反对以快变载波频率。
- According to the laser gain change is linear related to the frequency shift, the Doppler frequency is extracted by the signal processing. 根据激光的增益变化和频率变化成线性关系，可以对信号进行处理求出多普勒频移。
- This paper proposes a heter-cycle abutted CP structure and a two-step OFDM carrier frequency calibration algorithm. 摘要设计了一种具有异周期毗邻结构的新型循环前缓，提出了相应的OFDM频偏估计算法。
- The Brillouin frequency shift can be precisely measured by changing the local frequency and adopting narrow filter. 通过改变本地电信号的频率对信号进行扫描和窄带滤波，从而实现了布里渊频移的精确测量。
- It has previously been shown that PCC substantially reduces the sensitivity of OFDM to carrier frequency offset. PCC能够显著地降低OFDM对载波频偏的敏感性。
- The scheme of measuring Brillouin frequency shift in fiber sensor based on edge optical filter is proposed. 提出了采用边缘光滤波器来测量光纤传感中布里渊频域的方案。
- Current GPS receiver search strategies are based on the sequential search of the C/A code phase and carrier frequency. 摘要当前GPS接收机的搜索策略是基于C/A码相位和载波频率的串行搜索。
- The results show,the light frequency shift can be effectively r educed in the sharp angle laser light pumping scheme. 结果表明斜光抽运方案可以有效降低铯原子束频标中的光频移。
- Carrier frequency and modulation scheme are two key issues in the system design of automotive anticollision radar. 工作频段和工作体制是防撞雷达系统设计的两个主要问题。
