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Synchronize
- 由于使用了大量数目的子载波，这就使得多载波系统对多种同步误差都很敏 感。同步误差可分为两大类:载波相位 -due to the use of the large number of subcarriers, which makes multi-carrier systems for a variety of synchronization errors are very sensitive. Synchronization error can be divided into two c
经典载波跟踪环costas环simulink建模仿真
- 经典载波跟踪环costas环simulink建模仿真，采用QPSK调制，包含上下变频以及三种不同鉴相方式。,Classic costas loop carrier tracking loop simulink modeling and simulation, using QPSK modulation, including the upper and lower frequency, as well as phase three different ways.
Carrier_Trace
- 包括载波跟踪和伪码相位跟踪，用Matlab实现直接序列扩频信号的跟踪程序。-Including pseudo-code tracking and carrier phase tracking using Matlab implementation of direct sequence spread spectrum signal tracking procedures.
triple_difference
- 载波相位三差处理，用fortran语言编写的，对研究GPS载波相位差分的人有所帮助。-Three difference carrier phase processing, using the fortran language, the study of GPS carrier phase difference be helpful to people.
pink_noise
- 1/f噪声生成程序，由matlab语言实现，1/f噪声又成为pink噪声- This function creates noise with a 1/f spectrum. The noise is then phase modulated so that it can be mixed with a signal to simulate pink noise in the original signal. The noise is specified in power per
GPS
- 《载波相位相对定位双差方程原理》验证 《载波相位相对定位单差方程原理》验证 《载波相位相对定位双差方程原理》验证 《载波相位相对定位双差方程原理》验证当基站离流动站很近，并假设流动站概略坐标等于基站坐标，那么双差方程中距离向量就为0-" Double difference carrier phase relative positioning equation theory" test " single-difference carrier phase rel
8PSK_carrier_timing_est
- 8PSK信号载波相位符号定时联合估计程序-8PSK symbol timing signal joint estimation of carrier phase process
AM_costas_loop
- 在matlab中利用Costas环对AM通信系统进行载波相位跟踪，代码中带有详细注释。-Costas loop in matlab using communication systems on the AM carrier phase tracking, the code with detailed comments.
chengxu7
- 有关载波调制的数字传输的MATLAB程序---载波幅度、相位、频率调制。-Related to modulation of the digital transmission of the MATLAB program--- carrier amplitude, phase, frequency modulation.
AttDet_23_Oct_2008
- 利用gps多天线载波相位技术，确定姿态软件。-The use of multi-antenna gps carrier phase technology, attitude determination software.
code3
- 加入载波相位偏差，用最大似然估计和错误估计估计相位误差，并进行比较。-Add carrier phase deviation, using maximum likelihood estimation and errors estimated phase error is estimated and compared.
qpsk
- 定义锁相环的工作模式：单载波为“1”、BPSK调制为“2”、QPSK调制为“3”-The definition of phase-locked loop mode of operation: single-carrier for the " 1" , BPSK modulation for the " 2" , QPSK modulation for the " 3"
BlindEstimation
- This file contains a matlab file for blind carrier estimation which compute the phase and frequency offset of carrier due to Doppler shift.
thelambdaimplementation
- 经典的全球定位系统载波相位整周模糊度固定算法详细描述-Classic Global Positioning System carrier phase ambiguity resolution algorithm for a detailed descr iption of the fixed
PLLpostprocesser
- this the phase locked loops post processer.PLLs are widely used in frequency synthesis, for frequency multipliers and dividers, for carrier and symbol synchronization, and in the implementation of coherent receivers-this is the phase locked loops pos
yan
- 载波相位观测值的周跳探测与修复与程序设计，通过多项式拟合法进行探测与修复的工作。-Carrier phase observations of cycle slip detection and repair and programming, through the polynomial fitting, detection and repair work.
DesignoftrackingloopofGPSsoftwarereceiver
- 本文在分析GPS 软件接收机跟踪原理的基础上，首先比较码环与载波环不同鉴相器的性能，然后对二阶锁相环中不同环路参数设下的跟踪效果进行仿真分析，最后设计 了合适的码环与载波环路，并用实际采集的GPS 数据论证了所设计环路的有效性，为GPS 软件接收机跟踪环路的设计提供了参考。-Based on the analysis of GPS receiver tracking software on the basis of the principle, first compare the diffe
StudyofGPScarrirphaseestimatioethodinhighdynamicci
- 鉴于载波相位观测量可提供高精度定位信息的特点,分析了在高动态环境获得载波相位观测量的三种可 能方法,对三种方法的估计精度和动态跟踪能力进行了比较. 提出了一种适合GPS 系统的高动态环境载波相位 测量方案.-View of the carrier phase measurements can provide accurate location information, analyzes the dynamic environment in the high carrier phase m
Phase-estimation
- 一种基于软信息的编码辅助的迭代相位估计算法。该法采用载波相位同步、解调和译码联合处理的思想，将译码器输出的码比特的可靠量度直接反馈回估计单元以提高同步的准确度-Based on soft information encoded auxiliary iterative phase estimation algorithm. The method uses carrier phase synchronization, demodulation and decoding process of join
GPS-carrier-phase-and-multipath
- GPS 利用载波相位定位的时候如果存在多经情况的分析和处理-if exist multipath how to use carrier phase to poistion in GPS