Software realized the GPS carrier and the code tracking algorithm.
软件部分实现了GPS载波和码的跟踪环路算法。
The design of code tracking loop is a key sector of the realization of noncoherent spectrum spread receiver.
伪码跟踪环的设计是实现非相干扩频接收机的关键环节。
Based on the adaptive Kalman filtering algorithm, an estimator for the GPS PN code tracking error with model bias is proposed.
在自适应卡尔曼滤波算法的基础上提出了一种带模型偏差的GPS伪码跟踪误差估计器。
Following, code tracking confirm the PN code phase precisely and track every multipath component's delay drifting due to Doppler effect.
同步跟踪则由多径跟踪的结果精确估计PN序列码相位，并实时跟踪信道各径成分由于多普勒效应产生的时延漂移。
In this paper, the effects of a follower jamming on the performance of a delay-lock code tracking loop in a frequency hopping system are analysed.
本文分析了跟踪干扰对跳频系统中码跟踪环性能的影响。
Comparing with the traditional code tracking method, it is made for fast synchronization and maintenance. It also avoids the error of the JPL approximation algorithm.
与传统的码跟踪方法相比，更有利于迅速同步和稳定保持，避免了JPL近似算法带来的误差。
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。
This paper discusses the theory and the realization approach of BOC modulation and demodulation in satellite navigation system, and focuses on the BOC code tracking technology.
讨论了卫星导航中BOC调制解调的原理和实现方法，并着重研究了接收机的码跟踪技术。
The characteristics of PN code tracking-loop is discussed. The impact of parameters, e. g. correlation slot, integration time, loop width and SNR on code tracking performance is analyzed.
讨论了一种伪随机码跟踪环的特性，分析了码相关间隔、预检积分时间、环路带宽及信噪比等参数对码跟踪性能的影响。
Finally the simulation results show that the nonlinear performance and compatibility of MSK modulated navigation signals are better than QPSK modulated signals, ensuring the code tracking performance.
仿真结果表明，在保证信号跟踪性能的前提下，卫星导航信号采用MSK调制时的非线性和兼容性优于同参数下的QPSK调制。
It consists of three main parts: in the first part, we analyse the effect of multipath on code-tracking loops of receivers in Spread-Spectrum Ranging Systems.
本文分为三个主要部分：第一部分分析了多径对扩频测距系统接收机码跟踪的影响机理。
It consists of three main parts: in the first part, we analyse the effect of multipath on code-tracking loops of receivers in Spread-Spectrum Ranging Systems.
本文分为三个主要部分：第一部分分析了多径对扩频测距系统接收机码跟踪的影响机理。
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