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考虑到高动态环境下码多普勒频率的影响，文中利用载波环辅助技术使码跟踪环可以在较窄的环路带宽下跟踪高动态的扩频信号，从而能更好的抑制噪声，提高跟踪精度。

Considering the impact of code Doppler frequency in high dynamic environment , the technology of carrier auxiliary code tracking loop is used in this paper to track high dynamic spread spectrum signal in narrow loop bandwidth . This loop can suppress noise and improve tracking precision .

低信噪比高动态条件下P码直接捕获技术研究

Research of P-code Direct Acquisition Technology at Low Signal-to-Noise Rate in High Dynamic Condition

低载噪比下P码接收精频测量新算法及性能分析

A New Algorithm and Performance Analysis for Frequency Refinement of P Code under Low C / N0

分组相关快衰落信道下Turbo码译码算法研究

New Algorithm for Turbo Decoding over Correlated Block Fast Fading Channel

极低误码率下Turbo码的性能估计

Performance Estimation of Turbo Codes at Extremely Low Error Probability Level

无线信道下Turbo码的信噪比估值新算法

A New SNR Estimator Applied to Turbo Codes in Wireless Channel

高动态条件下PN码扩谱接收机的频率跟踪策略

Frequency Tracking Algorithms for PN Spread Spectrum Receiver in High Dynamic Circumstance

一种低信噪比下PN码的快速捕获技术

A fast acquisition technique of long PN code with low signal-to-noise ratio

弱对偶基下RS码译码方法的研究

Decoding method for RS codes in weakly-dual-basis

AWGN信道下RA码译码算法研究

On the Iterative Decoding of RA Codes on the AWGN Channel

研究了莱斯衰落信道下Turbo码的译码算法。

The decoding algorithm of Turbo codes on Rice fading channels are researched in this article .

在卫星移动信道中不同条件下Turbo码的纠错性能研究

Study on error - correction performance of Turbo codes in mobile satellite channel under different fading conditions

基于AWGN信道下Turbo码在JPEG图像传输系统中的应用研究

Application Study of Turbo Codes to JPEG Image Transmission Systems over AWGN Channels

AWGN信道下Turbo码误比特率模型

A BER Model for Turbo Code on AWGN Channel

研究了慢变频率非选择性瑞利衰落信道下Turbo码的性能。

The performance of turbo codes on frequency non-selective slow Rayleigh fading channels is investigated in this paper .

在此基础上提出一种在高动态环境下的码捕获新方法，该方法采用分段匹配滤波相关、最大选择检测算法和二次内插的FFT校频技术。

The method presented adopts segmented matched filter detector , maximum-selection detection algorithm and FFT frequency correction with quadratic interpolation .

未知相位信道下Turbo码编码DPSK信号的联合迭代解调解码

Iterative Joint Demodulation and Decoding of Turbo Coded DPSK Signals over Unknown Phase Channels

任意概率分布下Golomb码和扩展Gamma码的性能分析

Performance Analysis of Golomb Codes and Extended Gamma Codes for Arbitrary Probability Distributions

提出AOS建议下伪码传输的一种新方案，对该方案的可行性进行详细论证，并设计实现框图。

A new scheme of pseudo code ranging is proposed .

最后以低轨卫星通信为应用背景，给出两种适用于大频偏条件下PN码快速捕获方法。

Finally , two methods for fast code acquisition in condition of large frequency-offset are given under the application background of LEO satellite communication .

本文在深入研究GPS的系统组成、工作原理以及信号格式的基础上，对高动态条件下C/A码GPS接收机设计中遇到的几个关键问题进行了理论分析，并对实现方法进行了研究。

Based on analysis of the system architecture , principles and signal format of GPS , this thesis makes researches on the problems existing in designing high dynamic GPS receiver , and the corresponding implementation is also discussed .

分析了分组相关快衰落信道（CBFF）的特性，推导出该信道下Turbo码译码算法；

With the knowledge of correlated block fast fading channel , a new Turbo decoding algorithm is proposed .

最后对无线移动信道的主要特点进行了介绍，重点描述了最接近实际信道环境的时变多径信道及其模型，将Turbo码应用到时变多径信道中，分析了在这种信道环境下Turbo码的性能。

Finally , the main character of wireless mobile environment was introduced , the emphasis is put on time-variant multi-path channel , introduction includes the principle and module of the channel . Then Paper discussed the performance of Turbo codes in the time-variant multi-path channel .

最后我们分析了多中继下带码合并的协作ARQ系统性能，在DF中继下多一个中继参与传输的系统性能约等价于在单中继时系统多传输一次的性能。

At last , the performance of cooperative ARQ system with code combining in multi-relay cooperative communication is analyzed . In DF relay communications , system performance with one more relay is equivalent to system performance with one more retransmission in single-relay .

以信源的平均值给出了任意概率分布下Golomb码的平均码长的上下界和最优的参数选择准则。

The upper and lower bounds of the average codeword length of Golomb codes for arbitrary probability distributions as well as an optimal rule for choosing parameters are given in terms of the mean of sources .

本文主要对NAVTEX无线电导航系统中与定位精度有关的部分进行了研究，并利用通信仿真软件建立导航信号的跟踪捕获仿真模型，研究了多径干扰下的码跟踪误差和载波跟踪误差。

It 's investigated that the problem related with positioning precision of NAVTEX wireless navigation system , the acquisition and tracking of spreading signal are modeled and realized with simulation tools , the effects of multi-path signals are investigated in great detail .

提出了一种改进滑动窗的盲同步方法，该方法利用求主特征向量的过程，对扩频信号进行平滑降噪预处理，实现了较低信噪比下的码同步。

A modified synchronization approach by using sliding windows is proposed .

动态和噪声环境下伪码和载波联合测距算法研究

Research on PN code and carrier tracking algorithm in dynamic and noise environment

量好剪下两码这种丝绸。

Measure off two yards of this silk .

稀疏信道下的码片均衡算法

A Novel Chip Equalization Algorithm for Sparse Channels