After analyzing the model of high dynamic signals, a quasi-open-loop carrier tracking method based on unscented Kalman filter (UKF) is proposed.
在分析高动态载波信号模型的基础上,提出了一种基于无迹卡尔曼滤波(ukf)的准开环载波跟踪方法。
The effect of thermal noise and vehicle dynamics on carrier tracking loop are also analyzed, and the optimal bandwidth of carrier tracking loop is obtained.
并以相位跟踪环路为例分析了热噪声及载体动态性对环路的影响,得出了环路设计的最佳带宽。
Based on the performance of PN code and carrier tracking loop, an optimal loop bandwidth is presented.
在分析伪码和载波跟踪环性能的基础上,给出了跟踪环路的最优带宽。
We begin our discussion with a description of an imbalance model, then analyse its effect on carrier tracking loop steady-state lock point and its effect on average BEP.
通过对调制器不均衡的模型讨论,深刻分析了调制器不均衡对载波跟踪环路稳态锁定点和平均BEP的影响。
The implementation method of the receiver carrier recovery loop of microsatellite affects the volume, weight and function reconfigurability of the transponder.
针对微小卫星测控应答机的体积、重量及其功能灵活性,研究了接收机载波恢复环的实现方法。
We begin our discussion with a description of an imbalance OQPSK model, then analyze the effect on carrier tracking loop steady-state lock point and the effect on average BEP.
通过对OQPS K调制器不均衡的模型讨论,深刻分析了调制器不均衡对载波跟踪环路稳态锁定点和平均BEP的影响。
This paper proposes a carrier phase tracking loop dedicated for VSB demodulation.
本文提出了一种专门用于数字VSB解调的载波相位跟踪环。
In tracking aspect, use carrier tracking loop based on Kalman filter to improve tracking performance.
在跟踪方面,采用了基于卡尔曼滤波的载波跟踪环来提高跟踪环的性能。
It emphatically analyses carrier synchronization loop and code synchronization loop of HSP50210, and presents its application in software radio system.
文章介绍了HSP50210的主要性能特点和基本工作原理,重点分析了他的载波同步环及码元同步环。
Finally, the paper gives out a scheme of digitized carrier synchronization loop for software defined radio receiver which is based on the hardware platform composed of FPGA and DSP.
最后给出了一种用FPGA与DSP组成的硬件平台实现软件无线电接收机载波同步环路的方案。
It also give an improved method for PLL (phase locked loop) to extract coherent carrier.
本文还对相干载波提取中的锁相环提出了一种改进方法。
Finally, code loop and carrier loop are coupled together to track GPS signal in close loop, and analyze of different performances on track loop under different signal intensity is given.
最后将码跟踪环与载波跟踪环路耦合对采集的GPS信号闭环跟踪,并对不同信号强度下的跟踪结果进行对比分析。
A novel all-digital phase locked loop (PLL), applied to the carrier synchronization of communication systems, is designed.
设计了一种用于通信系统载波同步的新数字锁相环。
Carrier synchronization is implemented by a kind of closed loop with degenerative feedback.
载波同步通常采用一种闭环反馈回路来对载波相位进行跟踪。
Each pocket is lined with the Back-Up Belt System? Loop-sided carrier which allows the attachment of Back-Up Belt System? Pouches.
每个口袋与返回式皮带系统?环衬的片面载体允许后备皮带系统?袋附件。
Aiming at this problem, a new quasi-optimal structure of GPS carrier tracking loop based on extended Kalman filtering is proposed in this dissertation.
针对该问题,本文基于扩展卡尔曼滤波方法提出了一种准最佳的GPS载波跟踪环结构设计方案。
Finally, a theoretically optimal structure of GPS carrier tracking loop based on maximum likelihood estimation and linear Kalman filtering is proposed in this dissertation.
文章最后基于最大似然估计和线性卡尔曼滤波方法提出了一种理论上的最佳GPS载波跟踪环结构设计方案。
Then the influence of carrier frequency error on code loop and influence of code phase error on carrier loop in different noise are discussed in simulation.
利用计算机仿真方法详细分析不同噪声环境下,载波频差对码跟踪环路输出、码相位差对载波跟踪环路等因素的影响;
We begin our discussion with a description of an imbalance model, then analyse its effect on carrier tracking loop steady-state lock point and I...
通过对调制器不均衡的模型讨论,深刻分析了调制器不均衡对载波跟踪环路稳态锁定点和平均BEP的影响。
High precise measuring and tracking of carrier frequency-deviation is necessary to the realization of a high performance phase locked loop in carrier recovery.
载波恢复中高精度的频偏检测与跟踪是高性能锁相位环路实现的必要条件。
The estimation of carrier frequency and design of loop parameters are analyzed in this thesis when the two characteristics are considered.
本文对这两个特征下载波同步的两个方面——载波频率参数估计与环路参数设计进行了分析。
We begin our discussion with a description of an imbalance model, then analyse its effect on carrier tracking loop steady-state lock...
通过对调制器不均衡的模型讨论,深刻分析了调制器不均衡对载波跟踪环路稳态锁定点和平均BEP的影响。
Carrier tracking loop is the Key in satellite navigation receiver baseband processor design, the performance of the tracking loop decide the entire receiver baseband processor chip.
载波跟踪环路的设计是北斗卫星导航接收机基带处理设计中的关键,环路的跟踪性能基本决定了整个接收机中基带处理芯片的性能。
Additionally, the carrier loop noise bandwidth and the correlator spacing are reduced. Then the accuracy of carrier and code tracking loops is improved significantly.
同时,降低载波环噪声带宽,减小码环相关间隔,从而提高了载波环和码环的跟踪精度。
It compares the pilot distance protection with power line carrier (PLC) in the single or double frequency and the differential protection with optical fiber in the loop or chain connection.
比较单频率与双频率载波通道的纵联距离保护和环状与链状连接光纤通道的差动保护方案。
In the process of signal digital intermediate-frequency received, digital down convertion, frequency tracking of carrier and phase locked loop are the keys.
在信号的中频数字接收过程中,数字下变频、载波频率与相位跟踪是设计的关键所在。
Digital phase lock loop base on fuzzy logical control, which is used to recover carrier in communication system.
基于模糊逻辑控制的数字锁相环,用于通信系统中的载波恢复。
Better carrier frequency tracking performance can be gotten by adjusting the loop gain.
通过调整同步环路的环路增益,可以获得更好的频率跟踪性能。
This article presents a study of the carrier tracking loop of the global navigation satellite system (GNSS) receiver in high dynamic conditions.
对高动态环境下的全球卫星导航系统(GNSS)载波信号跟踪方法进行了研究。
Because of the frequency lock loop traction PLL filter can be designed very narrow, with very good noise suppression performance, to meet the precise requirements of carrier phase tracking.
由于有锁频环的频率牵引,锁相环路滤波器可以设计得很窄,具有很好的抑噪性能,满足精确跟踪载波相位的要求。
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