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MiMO
MIMO system......
it employs almouti code using STBC to achive diversity
- 2009-10-21 20:52:22下载
- 积分：1
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三种随机构造法
三种随机构造法：Gallager_getH、Mackay_getH、PEG_getH(Three random construction methods: Gallager_getH, Mackay_getH, PEG_getH)
- 2020-12-22 22:39:06下载
- 积分：1
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auto_filter
说明： 自适应滤波器作为一种现代滤波器，在通信领域有着广泛的应用. 阐述了LMS以及RLS自适应滤波器的相关原理及其在通信系统去噪中的应用，并用MATLAB对自适应滤波器的去噪结果进行了相应的仿真，仿真结果直观地体现了自适应滤波器的去噪性能。
本文对自适应滤波器系统进行剖析，基于QPSK调制后的信号，并对该信号加工成为不同信噪比如SNR=0Db、SNR=5dB、SNR=10dB的信号，进行了两种分别基于LMS自适应滤波和RLS自适应滤波的操作。并对添加了有色高频噪声等加噪处理来模拟通信过程中的实际应用环境，测试所设计的低通滤波器对于噪声信号的滤波性能，并对结果进行分析总结。(As a modern filter, adaptive filter has a wide range of applications in the field of communication. This paper expounds the relevant principles of LMS and RLS adaptive filter and their applications in the de-noising of communication system, and simulates the de-noising results of adaptive filter with MATLAB. The simulation results directly reflect the de-noising performance of adaptive filter.
In this paper, the adaptive filter system is analyzed, based on the QPSK modulated signal, and the signal is processed into different signal-to-noise, such as SNR = 0dB, SNR = 5dB, SNR = 10dB signal. Two kinds of operation are carried out based on LMS adaptive filtering and RLS adaptive filtering respectively. In order to simulate the practical application environment in the communication process, we add colored high-frequency noise to test the filtering performance of the designed low-pass filter for noise signal, and analyze and summarize the results.)
- 2021-02-01 21:28:05下载
- 积分：1
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Massive MIMO
说明： 实现Massive MIMO容量分析的代码，相关文献为
Emil Bj?rnson Jakob Hoydis Luca Sanguinetti Massive MIMO has Unlimited Capacity IEEE Transactions on Wireless Communications(This is a code package is related to the follow scientific article
Massive MIMO has Unlimited Capacity)
- 2020-08-10 16:00:04下载
- 积分：1
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ldpc-simplify
LDPC 译码算法 spa bp置信传播(LDPC spa bp LDPC LDPC)
- 2021-05-07 08:28:36下载
- 积分：1
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HYBRID
HYBRID VIDEO CODING MODEL OF
FINITE RIDGELET TRANSFORM AND H.264/AVC
Tomokazu Murakami and Masashi Takahashi
Embedded System Platform Research Laboratory, Hitachi, Ltd.
292, Yoshida-cho, Totsuka-ku, Yokohama, 244-0817, Japan
- 2009-11-11 03:06:23下载
- 积分：1
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DSSS_CDMA_1
基于simulink的码分多址扩频通信系统的仿真平台(DSSS-CDMA simulink)
- 2016-10-11 20:54:45下载
- 积分：1
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gmonopulse
高斯一阶导数生成的UWB单脉冲信号，脉冲宽度为0.5ns(Gaussian first derivative monopulse generated UWB signal, pulse width of 0.5ns)
- 2008-12-14 22:22:22下载
- 积分：1
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KeytechnologyinHighspeedOFDM
高速移动环境下（高铁）OFDM关键技术的研究，包括ICI消除，多普勒分集，CDMA-多普勒分集联合等关键技术(High-speed mobile environment (High Speed Rail) OFDM key technology research, including the elimination ICI, Doppler diversity, CDMA-Doppler sub-set of key technologies such as the Joint)
- 2010-01-16 10:23:41下载
- 积分：1
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该工程实现对单载波系统QPSK的频偏估计算法 freq_estimate
该工程实现对单载波系统QPSK的频偏估计算法。调相信号在接收机相干解调时需要同频同相的参考载波，而发射机和接收机之间往往存在频率偏差，为了消除这种误差，必须在软件层面实现。使用了QPSK四相调制的信号特点进行载波频偏估计，经验证，效果较好。(This project implements frequency offset estimation algorithm for single carrier system QPSK. The phase modulation signal needs the same frequency reference carrier in the coherent demodulation of the receiver, and the frequency deviation often exists between the transmitter and the receiver. In order to eliminate this error, it must be implemented on the software level. The carrier frequency offset estimation is carried out by using the signal characteristics of QPSK four phase modulation.)
- 2020-06-27 04:40:01下载
- 积分：1
