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Description: 一个多径信道仿真程序。其主程序为：
Jakes_filter.m 产生信道多普勒功率谱形状
linear_fft.m作fft变换，并作相应平移。
linear_psd.m分析信号的psd
qpsk_berest.m产生qpsk信号
random_binary产生随机信号源-a multi-path channel simulation program. Its main program : Jakes_filter.m have access Doppler power spectral shape linear_fft.m for f ft transform, and for the corresponding translation. Linear_psd.m analysis of the signals generated psd qpsk_berest.m letter qpsk No. random_binary generated random signal source
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Size: 5547 |
Author: 周智 |
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Description: 基于多径传输和多普勒频移的
瑞利（Rayleigh）信道的仿真
主要考虑不同条件下的仿真-Based on Multi-Drive transmission and Doppler frequency shift of the Rayleigh (Rayleigh) channel simulation main consideration different The simulation conditions
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Size: 119303 |
Author: 那锋 |
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Description: 生成一个 Rayleigh flat-fading channel with Doppler shift
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Size: 808 |
Author: 李理 |
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Description: Carrier-phase synchronization can be approached in a
general manner by estimating the multiplicative distortion (MD) to which
a baseband received signal in an RF or coherent optical transmission
system is subjected. This paper presents a unified modeling and
estimation of the MD in finite-alphabet digital communication systems. A
simple form of MD is the camer phase exp GO) which has to be estimated
and compensated for in a coherent receiver. A more general case with
fading must, however, allow for amplitude as well as phase variations of
the MD.
We assume a state-variable model for the MD and generally obtain a
nonlinear estimation problem with additional randomly-varying system
parameters such as received signal power, frequency offset, and Doppler
spread. An extended Kalman filter is then applied as a near-optimal
solution to the adaptive MD and channel parameter estimation problem.
Examples are given to show the use and some advantages of this scheme.
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Size: 827601 |
Author: 吴大亨 |
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Description: Impulse Response in Rayleigh Fading channel, and Doppler Shift is in it.
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Size: 1205 |
Author: Hui |
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Description: 一个多径信道仿真程序。其主程序为：
Jakes_filter.m 产生信道多普勒功率谱形状
linear_fft.m作fft变换，并作相应平移。
linear_psd.m分析信号的psd
qpsk_berest.m产生qpsk信号
random_binary产生随机信号源-a multi-path channel simulation program. Its main program : Jakes_filter.m have access Doppler power spectral shape linear_fft.m for f ft transform, and for the corresponding translation. Linear_psd.m analysis of the signals generated psd qpsk_berest.m letter qpsk No. random_binary generated random signal source
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Size: 5120 |
Author: 周智 |
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Description: 台湾一本通信书籍中讲述无线信道的一章，对多径，多普勒等讲得比较清楚明白-Taiwan a communication channel on the books of the First Chapter of multipath, Doppler, etc. stood out clearly understand
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Size: 899072 |
Author: 李林思 |
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Description: 用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。-Simulink tools used to write code (S-Function mode), resulting in a single Path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h.
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Size: 6144 |
Author: 不是王子1984 |
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Description: 信道模型为带多普勒频移的瑞利衰落信道，关于线性插值的MATLAB仿真程序，并解调。-Channel model with Doppler frequency shift for the Rayleigh fading channel, on the linear interpolation of the MATLAB simulation procedures, and demodulator.
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Size: 3072 |
Author: 王家 |
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Description: 考虑由于多普勒原因引起的衰落对在离散多径信道上传输的QPSK信号的影响-Consider the causes of the decline due to Doppler discrete multipath channel in the transmission of QPSK signals
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Size: 4096 |
Author: ggg |
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Description: In this thesis a signal level simulator in uplink is implemented according to the physical layer specification of the IMT-2000 WCDMA system. The analytical WCDMA system through the use of linear algebra techniques is shown. Channel model is built on the classical understanding of fading, Doppler spread, delay spread, and incorporate additional concepts such as direction of arrival and antenna array geometry. PN sequence properties and generation are studied. Spreading and scrambling techniques are present. RAKE receiver and multiuser detection are described, and spatial processing in smart antenna are reviewed. A simulation tool in Matlab is developed in this work.
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Size: 562176 |
Author: mansoor |
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Description: 信道建模，包括多径信道，考虑了多普勒频移以及瑞利信道！-Channel modeling, including multi-path channel, taking into account the Doppler shift and the Rayleigh channel!
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Size: 10240 |
Author: 王军 |
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Description: 在移动数据通信系统信号经传播媒介到达接收端会发生畸变，现行的通信系统普遍采用
自适应均衡技术来克服ISI和多普勒扩展。自适应均衡技术需要重复发送已知的训练序列直至
有效均衡为止I。“盲均衡(Blind Equalization，BE)111”技术仅利用接收序列本身的相关性便可
均衡信道特性。-Signal in the mobile data communication systems to reach the receiver via the mass media distortion occurs, the existing communication systems are generally adaptive equalization to overcome ISI and Doppler spread. Adaptive equalization techniques need to send a known training sequence repeated until an effective balance date I. " Blind equalization (Blind Equalization, BE) 111" technology is only used to receive serial correlation in itself can be balanced channel characteristics.
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Size: 1062912 |
Author: qiaohui |
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Description: 利用在box-muller 和在时域上通过低通滤波器的方法产生多普勒频移的瑞利信道-Using the box-muller, and in the time domain through a low pass filter method produces Doppler frequency shift of the Rayleigh channel
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Size: 1024 |
Author: 陈凯 |
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Description: 统一设定带宽、脉宽、采样率、脉冲重复频率，用Matab产生16个脉冲的LFM，每个脉冲有4个目标（低速，静止，高速，低速），第3个目标的距离、速度与学号有关。前3个目标的幅度相同，第四个目标幅度是前三个的一半。且距离与第2个静止目标相同。
依次做如下处理：
1 脉压
2 脉压后，相邻2脉冲做MTI（即相邻2个脉冲对应相减），产生15个脉冲
3 脉压后，16个脉冲到齐后，做MTD，输出16个多普勒通道
4 对MTD结果做CFAR（恒虚警）
-Unified set bandwidth, pulse width, sampling rate, pulse repetition frequency, and produces 16 pulses Matab LFM, with four goals each pulse (low-speed, static, high-speed, low speed), the first three goals of distance, speed and Student ID related. The first three goals of the same magnitude, and the fourth target range is half of the first three. And from the stationary target with the first two the same.
Followed by treatment as follows:
1 pulse
2 pulse pressure, the adjacent two pulses do MTI (that is adjacent to two pulses corresponding to the subtraction), resulting in 15 pulse
3 pulse pressure, 16 pulses in attendance after doing MTD, 16 Doppler channel output
4 MTD results do CFAR (CFAR)
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Size: 2048 |
Author: 木偶然 |
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Description: 基于jakes模型 分析多普勒信道衰落 频域仿真-jakes_model doppler channel
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Size: 1024 |
Author: zhongjb |
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Description: 信道估计中的参考信道程序，瑞丽信道有多普勒频移，初学者可以作为添加信道的参考，可以运行-Channel estimation in the reference channel program, Rui Lixin Road, Doppler shift, beginners can add the reference channel, you can run
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Size: 1024 |
Author: 赵宇 |
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Description: 无线通信中的多径效应与多普勒效应，本程序用于说明无线信道的基本特征（多径效应和多普勒效应）及其分类。-Wireless communications in the multipath effect and the Doppler effect, the procedure used to describe the basic characteristics of the wireless channel (multipath effect and the Doppler effect) and their classification.
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Size: 3072 |
Author: 樱 |
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Description: 多普勒频移单径瑞利衰落信道功率时间变化曲线的matlab仿真-Doppler shift a single Rayleigh fading channel power-time curve matlab simulation
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Size: 1024 |
Author: alex |
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Description: QPSK信号通过瑞利衰落信道后的误比特率和误符号率，并与AWGN信道下的误比特率和误符号率进行对比。其中，多普勒频移为
100Hz，经过矩形脉冲成形后的抽样时间间隔为1/800000s。-The QPSK signal harms the bit rate after the Rayleigh fading channel and harms the mark rate, and harms the bit rate with the AWGN channel under and harms the mark rate to carry on the contrast. And, the Doppler shift is 100Hz, after undergoing the square pulse forming the sampling time gap is 1/800000s.
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Size: 1024 |
Author: yanye |
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