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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.
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
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.
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"
2MW_wind_grid_inverter
- 针对兆瓦级风电并网逆变器主电路研制中存在的并联扩容、开关频率较低和LCL滤波器难以优化设计等问题，提出了采用交流侧串接电感再进行并联的均流方案，采用载波移相技术提高变流器的等效开关频率，提出了LCL滤波器的设计原则，并给出了上述设计的理论依据和实现方法。通过对2兆瓦风电变流器主电路的仿真验证了上述技术方案。-MW-class wind power for grid-inverter main circuit of the parallel development of existing capa
qpsksystem_SJSU_mdl
- QPSK modulation system with recover loops-This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. Th
BlindEstimation
- This file contains a matlab file for blind carrier estimation which compute the phase and frequency offset of carrier due to Doppler shift.
cpsspwm
- 用matlab编写的载波相移SPWM的五电平仿真，效果比较好-Prepared using matlab carrier phase shift SPWM five-level simulation results were quite good
QPSK
- Quadrature Phase Shift Keying is a form of Phase Shift Keying in which two bits are modulated at once, selecting one of four possible carrier phase shifts in 0, 90, 180, or 270 degrees-Quadrature Phase Shift Keying is a form of Phase Shift Keying in
PSKmatlab
- 载波调制的数字传输：载波相位调制和代码实现 -Modulation of the Digital Transmission: Carrier-phase modulation and code implementation
QAMXIANGP
- 本程序仿真了16QAM信号的载波相偏估计的HOS算法，整个算法实现分为（1）模拟发送端发送16QAM信号；（2）加入相偏来模拟通过信道后有相偏的测试信号；（3）利用HOS算法进行相偏估计与纠正；（4）输出星座图。-This procedure simulated a 16QAM signal carrier phase offset estimate of the HOS algorithm, the algorithm is divided into (1) analog transmitte
PSK_carrier_timing_est
- PSK信号载波相位符号定时联合估计程序-PSK symbol timing signal joint estimation of carrier phase process
AnAdaptiveFourDimensionalKalmnFilteforDopplerFrequ
- 用泰勒级数展开的形式表示高动态的载波相位参数, 给出了对高动态载体和各阶频率参数 估计的四阶加权扩展卡尔漫滤波器(EKF) , 以及实现高动态跟踪滤波器必须的状态转移矩阵和动 态噪声协方差矩阵. 计算机模拟实验分析了对载波相位和各阶频率的跟踪结果.-Taylor series expansion with the form that the carrier phase high-dynamic parameters, given the high-order dynamic freq
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
MILES
- 一种去相关最小二乘的载波相位整周模糊度解算-carrier phase
chengxu
- 载波相位调制解调4相PSK的比特误码率与理论差错概率原程序系统的性能分析与模拟 -Carrier phase 4 phase PSK modulation and demodulation bit error rate of the original program with the theoretical error probability analysis and simulation of system performance
48
- OFDM系统的PAPR性能与分割方式有关，但除此之外还与输入数据的子分组数V、相位集合中的相位数P以及子载波数量N有关。下面，对各种条件下PTS-OFDM系统的性能进行了仿真。-PAPR performance of OFDM systems and partitions the way, but in addition to the input data, the number of sub-group V, number of phases in the collection phase P
costas_ClosedLoop
- A Costas loop is a phase-locked loop used for carrier phase recovery from suppressed-carrier modulation signals, such as from double-sideband suppressed carrier signals. It was invented by John P. Costas at General Electric in the 1950s. Its inventio
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