Description: 该函数仿真CDMA系统的信道，在输入所需用户序列和其他干扰用户序列后在信号上叠加高斯白噪声，干扰用户多径干扰和所需用户的多径干扰和衰落。并根据输入延时曲线产生信道延时，输出mul_fad_sequence为信道信号输出，max_delay为信道最大延迟，fade_sign为瑞利信道中最大幅度分量的衰落量 mpath_amp为信道多径的幅度因子-the CDMA system simulation function of the channel, required users to import sequences and sequences of other users after the interference signal superimposed on the white Gaussian noise, Users interference and multi-path interference for users of multi-path interference and fading. Enter the delay under the curve Channel delay, mul_fad_sequence output of channel signal output, max_delay to channel the maximum delay, fade_sign Rayleigh Channel for the most significant component of the volume decline mpath_amp to channel more Drive rate factor Platform: |
Size: 2219 |
Author:刘洪 |
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Description: OFDM：正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理，重点研究了理想同步情
况下，保护时隙(cP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上，用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序-OFDM : Orthogonal Frequency Division Multiplexing (OFDM) is the fourth-generation mobile communication core technology. The article briefly introduces the basic principles of OFDM, focus on the ideal synchronous circumstances, Protection slot (counted ac cording) and different channel estimation method in Gaussian channel and multi-path Rayleigh fading channels of OFDM system performance. OFDM system is the model on the basis of MATLAB language of the entire system is computer simulation and reference design process Platform: |
Size: 2291 |
Author:xoaxiao |
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Description: ：正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理，重点研究了理想同步情
况下，保护时隙(cP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上，用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序-: orthogonal frequency division multiplexing (OFDM) is the fourth-generation mobile communication core technology. The article briefly introduces the basic principles of OFDM, focus on the ideal synchronous circumstances, Protection slot (counted ac cording) and different channel estimation method in Gaussian channel and multi-path Rayleigh fading channels of OFDM system performance. OFDM system is the model on the basis of MATLAB language of the entire system is computer simulation and reference design process Platform: |
Size: 4714 |
Author:xoaxiao |
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Description: 在高斯与一径瑞利衰落信道下对DVB-T系统的同步算法进行仿真，计算正确符号同步的概率-in Gaussian with a Rayleigh fading channel for DVB-T system synchronization algorithm simulation, correct calculation of the probability Symbol Synchronization Platform: |
Size: 2574 |
Author:陈栩秋 |
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Description: 在高斯与一径瑞利衰落信道下对OFDM系统（QPSK调制）的功率普的仿真-in Gaussian with a Rayleigh fading channel right OFDM system (QPSK) Pu Power Simulation Platform: |
Size: 2799 |
Author:陈栩秋 |
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Description: 该函数仿真CDMA系统的信道，在输入所需用户序列和其他干扰用户序列后在信号上叠加高斯白噪声，干扰用户多径干扰和所需用户的多径干扰和衰落。并根据输入延时曲线产生信道延时，输出mul_fad_sequence为信道信号输出，max_delay为信道最大延迟，fade_sign为瑞利信道中最大幅度分量的衰落量 mpath_amp为信道多径的幅度因子-the CDMA system simulation function of the channel, required users to import sequences and sequences of other users after the interference signal superimposed on the white Gaussian noise, Users interference and multi-path interference for users of multi-path interference and fading. Enter the delay under the curve Channel delay, mul_fad_sequence output of channel signal output, max_delay to channel the maximum delay, fade_sign Rayleigh Channel for the most significant component of the volume decline mpath_amp to channel more Drive rate factor Platform: |
Size: 2048 |
Author:刘洪 |
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Description: OFDM：正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理，重点研究了理想同步情
况下，保护时隙(cP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上，用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序-OFDM : Orthogonal Frequency Division Multiplexing (OFDM) is the fourth-generation mobile communication core technology. The article briefly introduces the basic principles of OFDM, focus on the ideal synchronous circumstances, Protection slot (counted ac cording) and different channel estimation method in Gaussian channel and multi-path Rayleigh fading channels of OFDM system performance. OFDM system is the model on the basis of MATLAB language of the entire system is computer simulation and reference design process Platform: |
Size: 2048 |
Author:xoaxiao |
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Description: 在高斯与一径瑞利衰落信道下对DVB-T系统的同步算法进行仿真，计算正确符号同步的概率-in Gaussian with a Rayleigh fading channel for DVB-T system synchronization algorithm simulation, correct calculation of the probability Symbol Synchronization Platform: |
Size: 2048 |
Author:陈栩秋 |
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Description: 在高斯与一径瑞利衰落信道下对OFDM系统（QPSK调制）的功率普的仿真-in Gaussian with a Rayleigh fading channel right OFDM system (QPSK) Pu Power Simulation Platform: |
Size: 2048 |
Author:陈栩秋 |
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Description: 不考虑多径干扰时在高斯白噪声和瑞利衰落信道条件下QPSK的调制解调过程，
并采用准分析法完成误码性能的计算。仿真过程包括仿真信号产成，滤波器设置，QPSK调制，加入高斯白噪声，通过锐利信道衰落，QPSK解调，误码率计算等几部分-Not consider multi-path interference at the white Gaussian noise and Rayleigh fading channel under the conditions of the QPSK modulation and demodulation process and the use of quasi-analysis method to complete the calculation of BER. The simulation process includes the middle class into a simulation signal, filter settings, QPSK modulation, by adding Gaussian white noise, through the sharp decline in channel, QPSK demodulation, bit error rate calculation and other parts Platform: |
Size: 41984 |
Author:金鑫 |
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Description: qpsk系统的蒙特卡洛仿真，分别在高斯和瑞丽衰落信道下进行误码率仿真-QPSK system Monte Carlo simulation, respectively, and Ruili in the Gaussian fading channel under BER simulation Platform: |
Size: 3072 |
Author:丁巍 |
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Description: 仿真CDMA系统的信道，在输入所需用户序列和其他干扰用户序列后在信号上叠加高斯白噪声，干扰用户多径干扰和所需用户的多径干扰和衰落。并根据输入延时曲线产生信道延时，输出mul_fad_sequence为信道信号输出，max_delay为信道最大延迟，fade_sign为瑞利信道中最大幅度分量的衰落量，mpath_amp为信道多径的幅度因子-Simulation of CDMA systems channel, the import requirements of the user sequence and other interference in the signal sequence users superimposed Gaussian white noise, multipath interference interference users and required the user s multipath interference and fading. And in accordance with input delay curve generated channel delay, the output for mul_fad_sequence signal output channel, max_delay to channel the maximum delay, fade_sign Rayleigh channel for the decline of the most significant amount of weight, mpath_amp for multipath channel magnitude factor Platform: |
Size: 2048 |
Author:fisher |
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Description: 有关QPSK调制解调的仿真程序，包括基带输入波形及其功率谱、QPSK调制信号及其功率谱、AWGN信道输出及其功率谱、通过瑞利信道之前和之后的信号星座图
6)在高斯白噪声和瑞利衰落信道条件下的误码性能以及高斯白噪声的理论曲线，所有误码性能曲线在同一坐标比例下绘制-Relevant QPSK modulation and demodulation of the simulation program, including the baseband input waveform and its power spectrum, QPSK modulation signal and its power spectrum, AWGN channel output and its power spectrum, through the Rayleigh channel before and after the signal constellation of Figure 6) in high- Adams white noise and Rayleigh fading channel under the conditions of BER, as well as the theory of Gaussian white noise curve, all the BER performance curve in the same proportion of coordinates under the map Platform: |
Size: 41984 |
Author:Navy2008_CHINA |
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Description: 本文对16QAM解调软信息输出(LLR)理论计算方法进行分析，推导
出其简化解调算法。将两者在性能和计算复杂度方面进行了分析比较，并分别在
高斯白噪声信道和瑞利衰落信道环境下进行仿真-In this paper, 16QAM demodulator soft information output (LLR) theoretical calculation method for the analysis derived simplified demodulation algorithm. Both in performance and computational complexity aspects are analyzed and compared, and in white Gaussian noise channel and Rayleigh fading channel simulation environment Platform: |
Size: 195584 |
Author:xzn |
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Description: 文件包含两个m文件，一个是QPSK的主函数文件和单径的瑞利衰落信道fade.m文件，实现的对qpsk的过程进行了仿真（在瑞利和高斯信道的作用下）。绘制出了在各个阶段的波形图-M file contains two files, one file is the main function of QPSK and single path Rayleigh fading channel fade.m file qpsk the process of implementation of a simulation (in the Rayleigh and Gaussian channel under the action.) Drawn out at each stage of the waveform Platform: |
Size: 5120 |
Author: |
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Description: 正交频分复用(OFDM) 是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情
况下,保护时隙(CP) 和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保
护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。-Orthogonal frequency division multiplexing (OFDM) is the fourth generation mobile communications core technology. This article first introduces the basic principles of OFDM, focus on the ideal synchronous case, protection time slot (CP) and different channel estimation in the Gaussian channel and multipath Rayleigh fading channel on the OFDM system performance. In the OFDM system model is given based on the MATLAB language with the computer simulation of the entire system and gives reference to the design process. Finally, in a different channel conditions, the protection time slot, channel estimation method for OFDM system, the comparison of bit error rate curves, obtained better results. Platform: |
Size: 237568 |
Author:zhanpeng |
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Description: 衰落信道幅值仿真编程：对瑞利衰落信道进行仿真，并加上高斯白噪声，通过输入不同的信噪比 比较其误码率变化-Amplitude fading channel simulation programming: on the Rayleigh fading channel simulation, and add white Gaussian noise, by entering a different signal to noise ratio to compare their error rate changes Platform: |
Size: 2048 |
Author:ll |
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Description: 星间精密测距是导航星座实现自主导航的核心技术。针对导航星座中码测量值精度低但无整周模糊度，载
波相位测量值精度高但存在整周模糊度的特点，该文根据贝叶斯递推原理提出了一种衰减记忆高斯和滤波(Fading
Memory Gaussian Sum Filter,FMGSF)的伪距估计方法。该方法用高斯和形式近似表示系统后验概率密度，并根
据卡尔曼滤波原理来更新高斯项的均值和方差，同时引入衰减记忆因子克服由于模型失配导致的滤波结果发散问
题，利用重采样解决由于载波相位测量值不确定导致的算法复杂度增加问题。理论分析和仿真结果表明，该文提出
的方法不仅能够克服周跳对伪距估计的影响，而且可以获得更好的测距精度。
-Precise ranging is the core technology of autonomous navigation.For code measurements yield noisy but
unambiguous pseudorange estimates and the pseudorange obtained with carrier phase measurements are almost
noiseless but are affected by integer ambiguity,a Fading Memory Gaussian Sum Filter(FMGSF)algorithm based
on Bayesian recursive relations is proposed.Posteriori probability density is approximated as a finite Gaussian
mixture,the means and variances of Gaussian terms are updated according to the principle of Kalman filter.
Fading memory factor is imported to avoid the issue of filter divergence due to mismodeling and resampling is
performed to resolve the issue of increasing in computational complexity caused by carrier phase measurement
uncertainty.Theoretical analysis and simulation results show that this algorithm can overcome the effect of cycle
slips to a certain extent and achieve higher range accuracy.
Platform: |
Size: 1083392 |
Author:wangmingxiao |
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Search - fading simulation gaussian