搜索资源列表
Performance-Analysis-of-Multicarrier-CDMA-with-cf
- This paper studied the carrier-frequency offset effect on the performance of asynchronous multicarrier direct-sequence code-division multiple-access (MC-DS-CDMA) systems with aperiodic random spreading and correlated Rayleigh fading. This paper also
scfde
- 单载波频域均衡的完全编码，包括了调制解调，独特字，传输模拟，信道估计，频域均衡器设计等等完全的理论。-Single-carrier frequency domain equalization, including modulation/demodulation, unique words, transmission simulation, channel estimation, frequency-domain-equalizer design, etc.
pulse-generate
- 本程序是矩形波的产生。第零步定义了要产生的波形的所有特征参数，矩形波的持续时间WIDTH，矩形波的采样点数POINTS,载波频率为F0，这个频率的最终引入是便于使用RF频率发射波形。第一步包括产生矩形波，并将其调制到RF上，注意，产生的信号的持续时间是矩形波宽度的5倍，这样，总的采样点数就是5*POINTS。同时还应注意，如果要产生一个基带信号，必须设置T0=0.第二步是画出所产生矩形波的源代码。- This procedure is rectangle wave production. Ste
OFDMFREQUENCYOFFSET
- plotting Consecutive OFDM Subcarriers in Time domain..This program plots sensitivity of OFDM subcarriers with Carrier frequency offset(CFO)-plotting Consecutive OFDM Subcarriers in Time domain..This program plots sensitivity of OFDM subcarriers with
CSD_Detect_Eval1
- Matlab编写的循环谱计算程序，并对谱参数进行检测和估计，如载频估计，时宽估计，幅度估计等-Matlab computer program written in cyclic spectrum, and spectral parameters for detection and estimation, such as carrier frequency is estimated at wide estimated range estimation
Carrier_Frequency_Nonideality
- It solves carrier frequency shift problem occurs in wireless communications by adjusting sampling clock rate.
OFDM-Carrier-Sync
- OFDM系统中提出一种改进方法对频偏的捕获, 在联合使用9个短前导序列和长前导序列估计算法的基础上,采用鉴频环路的方法来消除算法中的除法和取模运算 -OFDM system in an improved way of deviation of the capture, in the joint use of nine short leader sequence and the long preamble sequence estimation algorithm, based on the fr
1
- 利用costas环实现载波同步的matlab程序，载频10mHz-Costas loop to achieve carrier synchronization using the matlab program, carrier frequency 10mHz
msp430_bianpin38__77hz
- 用msp430单片机产生载波为24k—30k赫兹的频率为38—75赫兹可调的spwm-Msp430 microcontroller is generated using 24k-30k Hz carrier frequency of 38-75 Hz adjustable spwm
Software-receiver
- 软件接收机若干关键技术研究，定时恢复，载波恢复，载波频偏，DDS-Software receiver some key technical research，Timing recovery, the carrier recovery, carrier frequency, partial DDS
sd8psrc
- AVR ATtinyX5播放sd 卡 上的WAV文件。-This is a simple SD audio player biult with only an 8-pin microcontroller. The ATtinyX5 series (25/45/85) 8-pin AVR microcontroller has two fast PWM outputs in 250kHz carrier frequency. This enables to output a wide freque
scheme-in-downlink-synchronization
- 在蜂窝系统中，移动站台必须能够进行初始同步和搜索基站来开始下行接入。这个过程被称为初始小区搜索。在这篇文章中，同步和小区搜索被具体化。一个新颖的主同步信号的算法，包括理论分析和推导展现出来。-In cellular communication systems the mobile station (MS) must be able to perform initial synchronization and search for a base station to set up the do
QPSK
- 基于MATLAB的QPSK传输系统编码译码仿真-Carrier frequency for modulation and demodulation
MIMO-OFDM-Systems-Based-on-Preamble-
- MIMO OFDM 技术将成为第4 代移动通信系统的关键技术, 因MIMO OFDM 对时间和频率偏移非常敏感, 因此MIMO OFDM 同步显得尤为重要。提出了一种新的MIMO OFDM 定时同步和频偏同步技术。以GCL 序列为基础设 计了一个新的符合MIMO OFDM 同步技术的导频序列, 通过对该导频序列进行2 次相关得到频率估计, 并将所得频率 运用到定时同步中, 得到更为准确的时间估计
chu_Generate
- 单载波频域均衡中，信道是一个很关键的问题，信道估计的好坏也直接影响系统的性能，确定一个好的信道估计序列是至关重要的，chu 序列是一种很好的估计序列-Single-carrier frequency domain equalization, the channel is a very critical issue, good or bad channel estimation is also directly affect the performance of the system to det
NRF4432
- 配置了RF4432模块通过SPI方式。 1.配置RF4432主要包括载波频率、调制方式、数据发送速率、CRC校验、数据头、地址等。 2.进行了数据接收模式、发送模式的设置、以及数据包的接收和发送。-The configuration of the RF4432 module by means of SPI. 1 RF4432 configuration including carrier frequency, modulation mode, data transmis
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
mymatlab
- For free space path loss, fc=1.5GHz (Carrier frequency) If we take different antenna gains such as 1.(Gt=1,Gr=1)and 2.(Gt=1,Gr=0.5)and 3.(Gt=0.5,Gr=0.5) When we reduce the antenna gains (i.e. the transmitting gain or the receiving gain) there is
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
golay24_sd
- 绘制雷达信号理论中，单载频脉冲信号的模糊函数图-Draw the radar signal theory, the single carrier frequency pulse signal ambiguity function map