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rfid_model
- A system simulation environment in Matlab/Simulink of RFID is constructed in this paper. Special attention is emphasized on the analog/RF circuit.Negative effects are concerned in the system model,such as phase noise of the local oscillator,TX-RX
A.spur-free.fractional-N.pll
- A new PLL topology and a new simplified linear model are presented. The new fractional-N synthesizer presents no reference spurs and lowers the overall phase noise, thanks to the presence of a SampleJHold block. With a new simulation methodology it i
PREDICTION.FRACTIONALN.SPURS
- Fast settling-time added to the already conflicting requirements of narrow channel spacing and low phase noise lead to Fractional4 divider techniques for PLL synthesizers. We analyze discrete \"beat-note spurious levels from arbitrary modulus di
DDS.rar
- 本设计基于数字频率合成技术,采用正弦查找表实现波形产生.直接数字频率合成技术（DDS）是一种先进的电路结构，能在全数字下对输出信号频率进行精确而快速的控制，DDS技术还在解决输出信号频率增量选择方面具有很好的应用，DDS所产生的信号具有频率分辨率高、频率切换速度快、频率切换时相位连续、输出相位噪声低和可以产生任意波形等诸多优点。 文中介绍了DDS的基本原理，对DDS的质谱及其散杂抑制进行了分析。程序设计采用超高速硬件描述语言VHDL描述DDS,在此基础上设计了正弦波、三角波、方波等信号
dxz
- 低相噪、低杂波数字锁相环路滤波器的设计,caj格式，下载前请安装相应阅读器-Low phase noise, low-noise digital phase-locked loop filter design, caj format, download the pre-install the corresponding reader
pipeilvboqi
- 通过采用神经网络中的Clipping方法和MonteCarlo修改学习算法，对用于光学模式识别的纯相位二值化匹配滤波器进行了优化设计。计算机模拟结果表明，和传统的纯相位匹配滤波器的相关输出结果相比，其识别输出的信噪比和信号相关峰值得到了明显的提高，从而为今后的光学实现奠定了良好的基础。-Through the use of neural network methods and MonteCarlo modify Clipping learning algorithm for optical pa
ofdmwaiwen
- 三篇经典的关于ofdm相位噪声抑制的外文资料，是大师的作品，很有参考价值，我考过好几次，受益匪浅。-Three classical phase noise suppression on ofdm foreign materials, is the master work, a good reference, I test several times and benefit.
PhaseNoiseUEReceiver
- 相噪对EVM等指标的影响研究，用于设计系统指标和射频参数。-Phase noise on the EVM and other indicators of impact studies, indicators and radio frequency used to design the system parameters.
lowSNRFreES
- 本文利用软输入软输出信道译码器输出对数似然比随相位偏差变化的规律得到低信噪比MPSK信号的 相位偏差代价函数，并提出一种求解该代价函数的迭代相位搜索方法，以相对较小的运算量实现较高精度的相 位估计。仿真表明，该算法在低信噪比下具有稳定的性能，并且能够克服大多相位估计算法都存在的相位模糊 问题。-In this paper, the soft input soft output channel decoder output log-likelihood ratio with the v
Amplifier_mixer_-oscillator
- 放大器、混频器和振荡器的常用参数说明，包括增益、变频增益、相位噪声、三阶截取点、P1dB、插入损耗、输出功率、调谐增益和调谐范围-Amplifier, mixer and oscillator descr iption of the common parameters, including gain, conversion gain, phase noise, third-order intercept point, P1dB, insertion loss, output power, gai
Blind-frequency-offset
- This is a file for Blind frequency offset estimation for overlap PCC-OFDM systems in presence of phase noise
Phase-and-Frequency-Detector
- 针对锁频锁相器( Phase and Frequency Detector, PFD) 应用于低信噪比、大频偏的条件, 通过理论分析和仿真验证阐述了窗口类型对系统频偏捕获速度、范围、噪声门限及相位噪声抖动的影响机理. 推导出等效相位噪声功率谱密度的表达式. 证明了大窗口具有更低的噪声门限和更小的稳态相位抖动, 但捕获速度较慢. 为了提高捕获速度, 对鉴相器输出值取极性运算得到改进的PFD 算法. 新算法不仅能增加鉴相增益提高捕获速度 还可以减少等效噪声功率谱密度降低相位抖动 同时新算法不需要乘法
MT-008
- 本文的目的就是提出一种简单的方法来将振荡器相位噪声转换为时间抖动。-The purpose of this paper is to propose a simple method to convert the oscillator phase noise for the time jitter.
234443222
- 带有相位噪声的MPSK和MDPSK性能统一分析-Containing phase noise MPSK and MDPSK-performance unified analysis
CalculateLoopParameters
- 环路滤波器参数计算与噪声研究（How to Calculate Loop Parameters and Phase Noise Contribution）-Loop filter parameter calculation and noise (How to Calculate Loop Parameters and Phase Noise Contribution)
Matlab-simulation-noise-signal
- 噪声干扰信号的Matlab仿真 噪声调幅、调频、调相信号的Matlab仿真-Matlab simulation noise signal noise AM, FM, phase modulation signal Matlab simulation
Analysis-of-Frequency-Offsets-and-Phase-Noise-Eff
- Analysis of Frequency Offsets and Phase Noise Effects on an OFDM 802.11 g Transceiver
paper2
- Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems
paper4
- Analysis of Oscillator Phase-Noise Effects on Self-Interference Cancellation in Full-Duplex OFDM Radio Transceivers
QPSK
- An all-optical regeneration scheme for DQPSK and QPSK signals using phase-sensitive amplifiers (PSAs) is studied and its effectiveness is investigated through numerical simulations. By leveraging the ability of PSAs to provide phase and amplitude r