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ViterbialgorithmGMSKdemodulation
利用维特比算法解调GMSK信号
维特比算法的一个用处(Viterbi algorithm using GMSK signal demodulation Viterbi algorithm is a useful)
- 2009-02-06 15:30:48下载
- 积分：1
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Multi-Channel-model
多个信道模型仿真模型MATLAB源码，包括自由空间路径损耗函数、Okumura-Hata模型、COST231-WI视距模型、COST231-WI非视距模型、Rayleigh信道及COST-231 Hata模型等。(Multiple chanel model simulation with MATLAB code, include wireless_free_space_attenuation model, Okumura-Hata model, COST231-WI LOS model, COST231-WI NLOS model, Rayleigh model, etc al.)
- 2012-07-09 09:18:41下载
- 积分：1
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Desktop
简单地绘制BOC（1, 1）调制信号的功率谱密度及其自相关函数曲线，仅供参考。(Simple drawing BOC (1, 1) density and autocorrelation function curve of power spectrum of the signal modulation, for reference only.)
- 2020-10-28 16:19:58下载
- 积分：1
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Chan_TDOA_3D
可以实现利用chan算法完成三维空间目标定位(Chan algorithm can be used to complete the three-dimensional space target location.)
- 2020-07-30 11:28:37下载
- 积分：1
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massivemimobook-master
针对Massive MIMO的详尽全面的仿真。(A detailed and comprehensive simulation for massive MIMO system.)
- 2021-04-18 22:28:51下载
- 积分：1
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HT16C22程序
HT16C22显示驱动程序，使用I2C功能(HT16C22 display driver, using the I2C function)
- 2020-10-02 23:27:43下载
- 积分：1
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cognitive-radio-spectrum-allocation
认知无线电 频谱分配。 颜色敏感分配方法 (Cognitive radio spectrum allocation. The sensitive allocation method based on the color of user fairness)
- 2020-06-26 22:00:02下载
- 积分：1
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on-the-modulation-technology-in-OFDM
在 OFDM 数学原理和收发模型的基础上，本文对帧同步、定时同步、频率同
步和采样同步给 OFDM 系统所产生的影响进行了理论分析，同时讨论了基于循环
前缀或训练符号的典型 OFDM 同步算法。参考 802.11a 突发数据帧结构和系统参
数，分析几种 OFDM 同步算法用于突发分组传输的性能；在分析了几种经典的信
道估计算法基础上,通过对复杂度和性能的折衷，选择一种适合本文系统的估计
算法。最后作者提出一种改进型 LS 信道估计算法，该算法考虑了 LS 算法中噪声
的影响，从而提高了低信噪比下信道估计的精度。仿真结果表明，改进算法在低
信噪比下具有良好的性能。
(OFDM mathematical principles and transceiver model based on frame synchronization, timing synchronization, frequency synchronization and sampling synchronization to the OFDM system, the impact of the theoretical analysis are also discussed based on the cyclic prefix or training symbols typical OFDM synchronization algorithm . Reference 802.11a burst data frame structure and system parameters, analyze several OFDM synchronization algorithm for burst packet transmission performance several classic channel estimation algorithm based on a compromise between complexity and performance, select a suitable estimation algorithm in this article. Finally, the author proposed a modified LS channel estimation algorithm that takes into account the effects of noise in the LS algorithm, thus improving the low SNR channel estimation accuracy. Simulation results show that the improved algorithm has good performance in low signal-to-noise ratio.)
- 2013-05-10 15:18:30下载
- 积分：1
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OFDM-simulation
OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。(OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to multipath fading and high bandwidth efficiency.In this paper,channel estimation,which is one of the key technologies in OFDM systems,were introduced.
Then we discuss the significance of the channel estimation and the classification of channel estimation.Finally,we study the algorithms of channel estimation such as MMSE,LS and LMMSE,and further get the simulation results.
)
- 2012-07-06 16:11:38下载
- 积分：1
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test_sam
实现了polar在BEC信道下的编译码，画出了误码率图像(The encoding and decoding of polar in BEC channel is realized, and the bit error rate image is drawn.)
- 2019-04-09 15:37:28下载
- 积分：1
