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- The OFDM inner receiver design should take account of synchronization issue, such as symbol boundary, carrier frequency offset and sampling frequency offset. 内接收机所要考虑的问题有符码边界偏移、载波频率偏移和取样时脉偏移等同步问题。
- The sensitivity of sampling frequency offset in orghogonal frequency division multiplexing (OFDM) systems was analyzed and a pilots based estimation of sampling frequency offset was proposed. 通过建立数学模型,推导出存在采样频率偏移时系统信噪比的近似计算公式,定量地估计采样频率误差对系统性能的影响。
- The study show that symbol timing offset and sampling frequency offset would introduce inter-symbol interference, frequency offset of carriers would result in intercarrier interference. 分析表明:定时偏差和采样频率偏差会引入码间干扰,载波频率偏差会导致载波间干扰。
- Effects of sampling frequency offset on satellite navigation receivers 采样频率偏移对卫星导航接收机的影响
- sampling frequency offset 采样频率偏差
- Based on the fixed sampling interval technique, an improved phasor computing algorithm is proposed to correct the errors caused by DFT in the presence of frequency offset. 推导出一种在定间隔采样基础上能够有效消除非额定频率下离散傅里叶变换(DFT)算法产生的频率泄漏影响的相量校正算法。
- The mismatch of crystal oscillators between the transmitter and the receiver circuitry causes the sampling clock frequency offset and will introduce ICI and ISI. 由于传送端与接收端振荡器的不完全相同,因此会有取样频率偏移的现象,进而导致ICI与ISI的问题。
- 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。
- The results indicate that frequency offset can be obtained robustly. 海量实验数据证明,对应的数据是鲁棒的。
- sample frequency offset 采样钟频率偏移
- Cascade connection of two same systems is used to obtain 2 Ms/s sampling frequency. 介绍了如何利用两个相同系统级联的方法获得2Ms/s的采样频率.
- The simulation for QPSK shows that the algorithm can estimate the carrier phase and frequency offset accurately and reduce the system BER effectively. 结果表明,用该算法可以精确估计载波相位和频差,有效地降低系统的误码率。
- Sampling frequency and time constant of phase-locked amplifier were increased by using microcomputer. 采用计算机采样,提高了采样频率和锁相放大器的时间常数。
- The ways of estimating the frequency offset and Doppler spread width in WCDMA system are studied in this paper. 本文主要研究了WCDMA(宽带码分多址)系统中频偏和最大多普勒频偏的估计方法。
- A false signal in telecommunication links from beats between signal frequency and sampling frequency. 假信号信号频率和取样频率之间的拍子在无线电通信线路产生的假信号。
- 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 data would therefore import to FREQ software estimate the best sampling frequency for monitoring wells. 前述资料取得后,引入FREQ程式中分析,并拟定最佳之监测频率。
- A novel scheme of estimating the carrier frequency offset in CDMA system with the continuous pilot channel is proposed. 摘要本文针对存在载频频偏的CDMA系统,提出了一种新的估计该固有频偏的方法。
- A new frequency offset and channel estimation joint algorithm for OFDM system is proposed. 摘要针对正交频分复用系统提出一种新的频偏与信道联合估计的算法。
- If the sampling frequency is less than this, we can expect a serious distortion of output frequency which is generally referred to as aliasing. 如果取样频率小于此数,那么输出频率就要产生严重畸变,通常假频指的就是这种情况。