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qpsk
- 为了使数字信号在有限带宽的高频信道中传输，必须对数字信号进行载波调制。就频带利用率和抗噪声性能（或功率利用率）两个方面来看， QPSK系统最佳。QPSK是利用载波的四种不同相位差来表征输入的数字信息，是四进制移相键控（QPSK）。本项目用MATLAB软件对四进制移相键控信号在AWQN信道中传输进行了建模和仿真，通过对仿真得到的误码率和理论误码率进行比较和分析，从而证明了MATLAB软件仿真QPSK调制解调的可行性。-In order to make the digital signal in t
BOC_PSD_ACF
- 程序给出了BOC信号的生成过程及其频谱、自相关函数图形。子程序包含GPS伪码、子载波的生成方法。对理解通过移位寄存器产生伪码的方法及BOC调制方式很有帮助。-The program gives the BOC signal generation process and its spectrum, the autocorrelation function graphics. Subroutine contains the GPS pseudo-code, sub-carrier generatio
LAMBDA
- GPS载波相位测量中LAMBDA算法整周模糊度求解程序；是GPS姿态动态测量入门级算法。-ambiguity solution for gps in carrier measurement,is the basic algrithom for gps attitude measurement on the fly.
Lambda
- GPS整周模糊度降相关调整算法，是动态载波相位测量的经典算法，内附PDF文档详细介绍了MATLAB子程序功能。-solution for GPS integer ambiguity ,is classic algrithom for carrier mearsurement RTK,including the instruction for matlab program
saquare-transform
- 平方变换提取的载波同步系统仿真,输入的是一个四电平的随机序列-squuare transform to extract the carrier synchronization system simulation
All-DigitalQPSK-Demodulator
- Altem公司quartus II 8．1开发环境下，完成了中频全数字解调器的FPGA实现，并对数 字下变频、载波同步、位同步等解调器的核心模块设计进行了详细的分析和说明，给出 了实现框图和仿真波形。同时在本设计中应用了Altera公司的NiosII软核处理器技术， 用于载波的大频偏校正和解调器各个部分的监测和控制。最后给出了QPSK中频全数字 解调器关键性能指标的测试方法和测试结果，测试结果表明本设计达到了预期的性能指 标要求。-The Algorithm is con
cd4ef1.ZIP
- 多电平逆变器多载波调制策略的谐波分析Multi level inverter multi carrier modulation strategy for harmonic analysis-Multi level inverter multi carrier modulation strategy for harmonic analysis
Demodulation-Method-for-SSB
- ssb解调方法，不是相干解调，不需要载波恢复，比较实用。- A single sideband (SSB) demodulation method is described, in which frequency mixing is not required. The proposed method is based on the phase shift method, but no local oscillator is employed.
lmn4op.ZIP
- 采用垂直多载波调制技术的并网逆变器The vertical multi carrier modulation technology of grid-connected inverter-The vertical multi carrier modulation technology of grid-connected inverter
LTE-advanced-Carrier-aggregation
- LTE-Advanced 载波聚合经典论文-Carrier aggregation framework in 3GPP LTE-advanced
OFDMA_syn_intfreq_sim
- OFDMA的整数频偏算法仿真,采用1024个子载波.-a arithmetic for the integer freq offset in OFDMA system.the parameter is 1024
OFDMA_syn_fraction_freq_offset
- OFDMA中小数频偏算法仿真,系统参数采用1024个子载波.-a arthimetic for the ofdma frac freq offset.the parameter is 1024.
BASEFILE_11_06
- 解算接收机伪距，载波相位等观测量，从而定位，精度较高，因为没有加载波-compute the carrier s postion
ofdm
- MIMO．OFDM系统的子载波、功率和比特分配 MIMO技术能不增加系统带宽却提高系统容量和频谱利用率-The MIMO.OFDM system subcarrier, bit and power allocation MIMO technology can not increase the bandwidth of the system can improve the system capacity and spectrum efficiency
OFDM3
- 摘 要: 该文从OF DM信号的特性出发， 采用单一训练帧， 将OF DM 系统的载波频率捕获等效为单 载波频差估计.该文提出的算法仅使用一帧辅助数据 具有较高的精度，较少的计算量和较大的捕获范围、 且不受多径信道，时偏及帧同步误差的影响.- Orthogonal Frequency Division Mul tipl e x i n g ( O F D M) , Mu l t i c a r r i e r , C a r r i e r f r e q u e n
GMSK_Hop.mdl
- 该模块主要完成GMSK跳频通信，在simulink中实现，包含跳频载波实现模块。-The module is mainly to complete the GMSK frequency hopping communication, including frequency hopping carrier to implement the module in simulink....
System-Simulation-0f-CDMA2000
- 本程序仿真CDMA2000的复扩频过程,只考虑导频信道和一个业务信道,假设同步已建立，接收端能产生同频同相相干载波,整个仿真过程在基带中进行.-The simulation program CDMA2000 complex spread spectrum, considering only the pilot channel and a business channel, and assume that synchronization has been established, the rece
CMA_MMA_16QAM
- 改进的CMA，便于载波恢复。这是一个非常好的算法，精心编码-a modified CMA used for phaes recovery
The-SA4828--software-design
- 利用大规模专用集成电路SA4828 设计变频器，可以大大降低CPU 的资源占用，简化硬件电路和软件编程。通过对SA4828 进行初始化编程，可以方便地设定变频器的基本参数包括：载波频率、调制波频 率范围、死区时间、最小删除脉宽、看门狗时间常数、输出波形、频率、幅值、正反转控制等。实验表明，由SA4828 组成的变频器，电路简单，操作方便，运行稳定可靠。-Large-scale ASIC the SA4828 design inverter can greatly reduce the CPU
ti-sfsk
- ti s-fsk电力载波通信模块，供各位参考一下-Spread_Frequency shift Keying Power Line Monem Software Architecture