Description: 利用Matlab编程模擬phase noise對OFDM signal的影響,希望供大家参考,Error vector magnitude (EVM) -simulation using Matlab programming phase noise of the impact of the OFDM signal hope that for your reference, Error vector magnitude (EVM) Platform: |
Size: 1063 |
Author:蔡宗軒 |
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Description: 利用Matlab编程模擬phase noise對OFDM signal的影響,希望供大家参考,Error vector magnitude (EVM) -simulation using Matlab programming phase noise of the impact of the OFDM signal hope that for your reference, Error vector magnitude (EVM) Platform: |
Size: 1024 |
Author:蔡宗軒 |
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Description: 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 coupling,reflection of the environment,
AWGN noise,DC offset,I/Q mismatch,etc.Performance of the whole system can be evaluated by
changing the coding method,parameters of building blocks,and operation distance.Finally,some
simulation results are presented in this paper.
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Size: 2099200 |
Author:liulang |
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Description: 研究了利用混沌相变进行弱信号检测的理论及仿真试验( 对基于)振子初值敏感性检测弱信号的方法分
析后指出，过渡过程会影响检测性能，提出一个猜数游戏，一种改进的弱信号检测方法( 对仿真输入噪声生成和仿真步长选择进行
研究后建立了仿真模型，在典型噪声背景下检测弱正弦信号( 实验结-Studied the use of chaotic phase transitions for weak signal detection theory and simulation test (based on) the sensitivity of oscillator initial value method of weak signal detection analysis pointed out that the transition process will affect the detection performance, make a guess the number of games, an improved weak signal detection methods (for simulation input noise generation and simulation step size selection study established a simulation model, in a typical background noise detection of weak sinusoidal signal (experimental colorectal Platform: |
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Author: |
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Description: Phase Based Template Matching: Phase information is used for matching the input imagery with the template. Both the images are filtered with canny edge detector. The timing efficiency is introduced by implementing skipping steps while doing correlation. The advantage of Phase based correlation technique is that it shows good response against shift/brightness variation and noise addition i.e. salt & pepper/Gaussian noise [1,2]. Templates includes small portion of cropped from input imagery with gaussian noise introduced in them. Platform: |
Size: 71680 |
Author:zhangxq |
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Description: MATLAB是一个非常好的用于测量，分析和可视化的数据，控制仪器，并建立测试系统。安捷伦信号和频谱分析仪可让您分析失真，虚假的，相位噪声，用于2G到4G无线通信测量。这种Matlab下开发的高级数据可视化（ADV）的应用软件，扩展了安捷伦信号和频谱分析仪的可视化功能，提供了四个不同的显示格式：Analog Advanced, Analog Plus, Waterfall,和Spectrogram。这些显示使得更加容易捕获间歇性信号。-MATLAB is a very good for the measurement, analysis and visualization of data, control apparatus, and to establish test systems. Agilent signal and spectrum analyzers lets you analyze distortion, false, phase noise, for 2G to 4G wireless communication measurements. This developed under Matlab Advanced Data Visualization (ADV) of the application software, the expansion of the Agilent signal and spectrum analyzer visualization capabilities, providing four different display formats: Analog Advanced, Analog Plus, Waterfall, and Spectrogram. These shows make it easier to capture intermittent signals. Platform: |
Size: 391168 |
Author:小单 |
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Description: 小数分频技术解决了锁相环频率合成器中的频率分辨率和转换时间的矛盾, 但是却引入了严重的相位噪声,
传统的相位补偿方法由于对Aö D 等数字器件的要求很高并具有滞后性实现难度较大。$2 调制器对噪声具有整形的功
能, 因而将多阶的$2 调制器用于小数分频合成器中可以很好地解决他的相位噪声的问题, 大大促进了小数分频技术的
发展和应用。文章最后给出了在GHz 量级上实现的这种新型小数分频合成器的应用电路, 并测得良好的相噪性能。-Fractional-N technology to solve the PLL frequency synthesizer in the frequency resolution and conversion time of contradictions, but the introduction of a serious phase noise, the traditional method of phase compensation A? D because of the number of devices, such as demanding and have the lag is more difficult to achieve. $ 2 modulator with noise shaping function, and thus will be more than the $ 2-order modulator for fractional-N synthesizer can be a good solution to his problem of phase noise, contributed significantly to the fractional-N technology development and applications. Finally, the article in the GHz order to achieve this new fractional-N synthesizer of the application circuit, and measured a good phase noise performance. Platform: |
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Author:朱成发 |
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Description: 该算法是经典的信噪比估计算法——误差矢量幅值法，通过计算接收信号中同相分量和正交分量的二、四阶矩，该算法能够很好的估计信号的信噪比-The algorithm is a classic signal to noise ratio estimation algorithm- the error vector magnitude method, by calculating the received signal with the phase component and quadrature component of the second, fourth-order moment, the algorithm can estimate a very good signal to noise ratio Platform: |
Size: 1024 |
Author:贾小勇 |
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Description: 图像增强处理方法，这M文件是对加入高期噪声后应用了中值滤波，均值滤波，低通滤波等方会分别来处理的程序。-Image enhancement method, this document is to join M phase noise after the application of the high value of the filter, mean filter, low pass filtering and so on will be to deal with the procedures, respectively. Platform: |
Size: 1024 |
Author:azute |
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Description: 增加相噪的程序，可以把测量结果转化为相为噪声，使用非常方便。-The program to add phase noise, the measurement results can be translated into phase noise, very convenient to use. Platform: |
Size: 3072 |
Author:shan |
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Description: 分析了相位噪声对正交频分复用(OFDM)系统的影响,发现相位噪声不仅产生
通用相角错误(CPE),而且还会产生载波间干扰(ICI),这都使OFDM系统的性能急剧恶
化,因此必须对CPE和ICI进行校正.文中给出了基于MSE准则的CPE校正方法,考虑到
ICI干扰主要来源于相邻信道,进而提出了基于LMS法则的自适应相邻信道干扰消除方
法.整个算法简单高效.仿真结果表明,所提出的算法大大改善了OFDM系统的性能-Analysis of phase noise on the orthogonal frequency division multiplexing (OFDM) system, the impact of phase noise was found not only from the general phase angle error (CPE), but also generate inter-carrier interference (ICI), which are so dramatically the performance of OFDM system worse, it is necessary CPE and ICI correction. This paper gives guidelines for CPE-based MSE correction methods, taking into account ICI mainly come from the adjacent channel interference, then presents a rule-based LMS adaptive adjacent channel interference cancellation method. the algorithm is simple and efficient. The simulation results show that the proposed algorithm greatly improved the performance of OFDM systems Platform: |
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Author:sunkai |
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Description: 1/f噪声生成程序，由matlab语言实现，1/f噪声又成为pink噪声- This function creates noise with a 1/f spectrum. The noise is then
phase modulated so that it can be mixed with a signal to simulate
pink noise in the original signal. The noise is specified in power
per hertz at frequency f0, relative to the power in the carrier. Platform: |
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Author:张强 |
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Description: 通过信号星座图来比较PSK和PAM对相位噪声的敏感程度-By PSK signal constellation diagram to compare and PAM on the sensitivity of phase noise Platform: |
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Author:王晓东 |
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Description: In statistics, the Kalman filter is a mathematical method named after Rudolf E. Kalman. Its purpose is to use measurements that are observed over time that contain noise (random variations) and other inaccuracies, and produce values that tend to be closer to the true values of the measurements and their associated calculated values. The Kalman filter has many applications in technology, and is an essential part of the development of space and military technology. Perhaps the most commonly used type of very simple Kalman filter is the phase-locked loop, which is now ubiquitous in FM radios and most electronic communications equipment. Extensions and generalizations to the method have also been developed.-In statistics, the Kalman filter is a mathematical method named after Rudolf E. Kalman. Its purpose is to use measurements that are observed over time that contain noise (random variations) and other inaccuracies, and produce values that tend to be closer to the true values of the measurements and their associated calculated values. The Kalman filter has many applications in technology, and is an essential part of the development of space and military technology. Perhaps the most commonly used type of very simple Kalman filter is the phase-locked loop, which is now ubiquitous in FM radios and most electronic communications equipment. Extensions and generalizations to the method have also been developed.
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Size: 14336 |
Author:yu |
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Description: 该资料是一个matlab仿真程序。实现对噪声中正弦信号相位的估计。利用matlab仿真得到的PDF估计 对不同的信噪比（SNR）情况进行Monte Carlo仿真-This information is a matlab simulation program. Realize sine signal phase noise estimation. Obtained by simulation using matlab PDF estimates different signal to noise ratio (SNR) conducted Monte Carlo simulation. Platform: |
Size: 29696 |
Author:ljf514348404 |
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Description: 利用MATLAB集成环境下的M文件，编写程序来实现MSK的调制解调，并绘制出解调前后的时域和频域波形及叠加噪声时解调前后的时频波形，根据运行结果和波形来分析该解调过程的正确性及信道对信号传输的影响。通过这次课程设计进一步加深了我对最小二进制相移键控（MSK）调制解调性能的理解与掌握，同时将课堂上学到的理论知识用于实践。增强了我在模拟仿真方面的能力，为以后系统开发和通信系统仿真打下了良好的基础。(The use of MATLAB in the integrated environment of M file, write a program to achieve MSK modulation and demodulation, and draw out the time-frequency waveform before and after demodulation in time domain and frequency domain waveform and the superimposed noise before and after demodulation, to analyze the correct and the channel of the demodulation process of signal transmission according to the operation results and waveform. Through this course design, I further deepen the understanding and mastery of the minimum binary phase shift keying (MSK) modulation and demodulation performance, at the same time, the theoretical knowledge learned in the classroom is used in practice. It enhances my ability in analog simulation, and lays a good foundation for future system development and communication system simulation.) Platform: |
Size: 595968 |
Author:史宾
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