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2下载:
该程序是同步中的相位估计方法,该方法可以估计不同参数下的相位大小。-synchronization is the process of phase estimation method, which can be estimated under different parameters of phase size.
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此为通信matlab仿真平台 simulink仿真模型,包括中频传输 基带解调 载波同步 多相滤波 和NCO的大系统-This is the communication matlab simulation model simulink simulation platform, including the transmission base-band demodulator IF carrier synchronization of multi-phase filtering and large-
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锁相环是一种反馈电路,其作用是使得电路上的时钟和某一外部时钟的相位同步。PLL通过比较外部信号的相位和由压控晶振(VCXO)的相位来实现同步的,在比较的过程中,锁相环电路会不断根据外部信号的相位来调整本地晶振的时钟相位,直到两个信号的相位同步。-PLL is a feedback circuit, and its role is to make the clock circuit and a phase of external clock synchronization. PLL signal
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数字锁相环实现位同步信号的提取,含电路图,和源代码-Digital phase-locked loop to achieve bit synchronization signal extraction, including schematics, and source code
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一种短波高速QAM信号快速无抖动码元同步方案的设计,文章基于Gardner定时误差检测算法、预滤波和一阶过零检测锁相环理论,结合卡尔曼
滤波算法,设计了一种快速无抖动的短波高速QAM信号全数字解调码元同步方案,从理论上
推导了方案中各个参数的设置方法,并在不同的信道环境下测试算法的性能,仿真结果显示
该方案具有优良的性能。
-A short high-speed QAM signal symbol timing quickly without jitter in the desi
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64QAM解调文章,在符号同步方面,采用插
值滤波器的设计,在盲均衡方面,提出了改进算法--MMA+HCMA双模式算法,利用MMA算法对信号的实部和虚部都进行均衡的原理解决了CMA+HCMA算法盲相位的问题-64QAM demodulation article, the symbol synchronization, using the interpolation filter design, blind equalization, the proposed improved algorit
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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
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本程序是锁相环的仿真程序,具有接收端载波同步的功能。注释详尽,程序规范。发端的调制方式有单载波调制,BPSK调制,QPSK调制可供选择。程序中有星座图,锁相环的频差、相差图,以及解调后的基带波形。-This program is a phase-locked loop simulation program, the with carrier synchronization receiving end function. Notes detailed program specifications.
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MPSK解调的关键在于载波同步和码元同步.这里采用 数字锁相环实现载波同步和码元同步.pdf-MPSK demodulation key symbol synchronization and carrier synchronization. Here digital phase-locked loop carrier synchronization and symbol synchronization. Pdf
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使用matlab对无线通信中重要的调制技术QPSK进行了仿真设计,包括调制,信道环境模拟,解调,最重要的是解决了无线通信中的载波同步问题,对频偏和相偏进行了估计,也实现了码元同步。-Use matlab important wireless communication QPSK modulation technique simulation design, including modulation, channel environment simulation, demodulation, th
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Gardner位同步算法与锁相环的联合仿真程序.加入了时偏和频偏,能很好地锁定时偏和频偏,得到最佳采样输出。(Gardner bit synchronization algorithm and phase-locked loop joint simulation program, adding time offset and frequency offset, can well lock the bias and frequency offset, get the best sampling o
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该工程是有关CPFSK(连续相位调制)的完整工程。帧结构包含训练序列、前导码、同步码、数据长度等信息,使用正交调制方式产生CPFSK的信号,生成基带IQ数据。接收端包含帧同步、滤波、解算长度等算法。可实现任意长度字符串的无线发送与接收。工程十分完整喝强大,可直接用于各大SDR平台的验证。(The project is a complete project of CPFSK (continuous phase modulation). The frame structure contains tr
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本程序利用交替优化的方法实现了8-PSK信号在多普勒频移条件下的相位和定时双参数同步,不仅程序注释清晰,而且附上该程序实验报告,力求便于读者理解。(By optimizing alternately, this program realizes two parameters synchronization of phase and timing for 8-psk signal under Doppler frequency shifting channel. For better unders
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