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Chepstow-keying-orthogonality
对不同调频周期数 不同时间带宽积和不同调 频 极 性 等 多 种 组 合 情况下的 信号正交性进行了分析 发现通过不同调制参数的灵活组合可以实现 信号正交调制 (Analysis found that is orthogonal to the signal in the case of the variety of combinations of different FM number of cycles of the different time-bandwidth product and different FM polarity signal quadrature modulation can be achieved by the flexible combination of different modulation parameters)
- 2013-03-02 21:28:53下载
- 积分：1
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conv_viterbi
convolutional coding and viterbi decoding
- 2021-05-13 16:30:02下载
- 积分：1
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gobackn
北邮计算机网络实验一，滑动窗口的回退n协议，实测信道利用率很高。(Computer network experiment 1, sliding window backoff n protocol, the measured channel utilization is very high.)
- 2019-07-05 01:59:06下载
- 积分：1
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IEEE802.15.4a
ieee802.15.4a信道模型.是2-10G部分，是SV模型(ieee802.15.4a channel model )
- 2011-05-16 21:40:58下载
- 积分：1
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Genetic-Algorithm-in-OFDM-system
OFDM自适应资源分配时，我们知道遗传算法很常见，这里我们给大家编了一下遗传算法的代码，供大家参考(OFDM adaptive resource allocation, we know the genetic algorithm is very common here, we compiled a genetic algorithm code for your reference)
- 2012-03-06 09:55:52下载
- 积分：1
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51单片机rc522 射频的程序和与电路图
完整的射频门禁程序源码包含rc522的驱动程序以及相应的显示程序(There had been many cases about RFID-based access control systems. In this paper, long-distance radio frequency technology was used and image-recognition technology was joined, these technologies were used to realize the automation of access management.)
- 2017-12-20 21:40:17下载
- 积分：1
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QAM16
使用Matlab仿真QAM_DSSS通信系统误码率，并和理论误码率进行比较。(Matlab QAM_DSSS BER
)
- 2013-06-26 19:40:46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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san3
通信中利用匹配滤波，产生斜坡信号，并进行相应滤波(Communication using matched filtering, resulting in ramp, and the corresponding filter)
- 2020-12-06 14:59:22下载
- 积分：1
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16QAM
使用矩形信号16qam通信系统蒙特卡洛仿真 (16qam communication system Monte Carlo simulation)
- 2021-03-11 15:39:26下载
- 积分：1
