信号(residual water signal)作相位校正(phase correction),可以使频谱的SNR提高一些并且减 少因为受试者移动造成的频谱线宽增加。
基于382个网页-相关网页
phase-correction filter 相位校正滤波器
phase-correction filtering 相位校正滤波
SPC-Syncr Phase Correction 偿纠正 ; 改正
optical phase correction 光相位校正
Phase correction coating 相位改正镀膜 ; 颠末相位批改镀膜 ; 新一代直筒棱镜经过相位修正镀膜
Automatic phase correction 自动相位校正
phase correction procedure 相位调整过程
differential phase correction 微分相位校正
phase correction unit 相位校正器 ; 相位补偿器
Since WCDMA up-link adopt the RAKE receiver using coherent detection system, the exact and Real-time channel fading estimation of the transmitted signal is needed to realize the phase correction and coherent reception.
由于WCDMA系统上行链路采用的是基于相干解调的RAKE接收方案,故要求对信号在多径衰落信道中所经历的衰落作出准确实时的估计,以便在RAKE接收机中实现相位纠偏和相干接收。
参考来源 - 第三代移动通信系统中信道估计技术的研究Finally, a new algorithm based on phase correction for frequency tracking is proposed after studying maximum likelihood criteria for frequency tracking. Then, two improved algorithms are proposed after summarizing several estimation algorithms based on pilot symbols.
最后,在介绍了基于最大似然准则的频偏跟踪算法的基础上,提出了一种基于相位纠正的频偏跟踪算法;在总结了几种基于导频的最大似然估计频率跟踪算法的基础上,提出了两种改进算法。
参考来源 - 正交频分复用系统频率同步技术研究·2,447,543篇论文数据,部分数据来源于NoteExpress
The constant phase correction is performed in time domain.
常相位校正是在时间域进行的。
This paper proposed a phase correction method for hybrid baseline SAR-ATI of distributed satellites.
本文提出了一种分布式卫星混合基线SAR-ATI相位校正方法。
The sample pulse DRFM principle phase correction advantages and disadvantages are introduced either.
介绍了示样脉冲DRFM原理、相位校正和优缺点;
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