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TCPsever
基于TCP的利用线程实现的服务器端的接收消息功能。(This is a program based on TCP ，and realize the server receives function by
multi-thread functions.)
- 2011-05-19 11:01:46下载
- 积分：1
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ofdm系统模型
ofdm系统模型，包含信道估计 FFT变换 QPSK 16QAM调制 插入导频等，非常全面。(OFDM system model, including channel estimation FFT transform QPSK 16QAM modulation insert Pilot and so on, very comprehensive.)
- 2020-07-10 14:29:05下载
- 积分：1
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PCM
说明： 在实际的调谐解调电路中，采用的是非相干载波解调，本振信号与发射端的载波信号存在频率偏差和相位抖动，因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决，得到的数字信号也不是原来发射端的调制信号，误差的积累将导致抽样判决后的误码率增大，因此数字QPSK解调电路要对载波误差进行补偿，减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)
- 2019-01-30 20:16:08下载
- 积分：1
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Matlab
AM、DSB调制，TDMA、CDMA、FDMA接入方式仿真，以及自己写的画出频谱的函数spectrum2(AM, DSB modulation, TDMA, CDMA, FDMA access method simulation, and my own spectrum way-spectrum2)
- 2021-04-22 18:48:48下载
- 积分：1
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Low-Complexity-PAPR-Reduction-Technique-for-STBC-
Selective mapping algorithm is proposed to reduce the peak-to-average power ration (PAPR) in MIMO-OFDM system.
It is proved that the conjugate symbols on two antennas have the same PAPR property with orthogonal space-time block coded (STBC). By using the characteristic, the computational
complexity cost and the side information (SI) is significantly
reduced compared with the concurrent SLM algorithm.
Simulation results demonstrate that the performance of the proposed algorithm outperforms the conventional concurrent
SLM algorithm.
- 2014-01-01 06:04:45下载
- 积分：1
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stf
这是一篇基于循环延迟分集的分组预编码和空时频编码技术方面的典型文章(This is a cyclic delay diversity based on the group pre-coding and space-time-frequency coding technology, a typical article)
- 2008-04-16 16:12:02下载
- 积分：1
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junhengqi
3抽头迫零均衡器，5抽头迫零均衡器，以及恢复信号波形(3-tap zero forcing equalizer, the 5-tap zero forcing equalizer, and the restoration of the signal waveform)
- 2020-11-28 06:59:30下载
- 积分：1
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网络层源代码
说明： 汽车诊断协议 基于UDS的网络层源代码(Network Layer Source Code Based on UDS for Automobile Diagnosis Protocol)
- 2019-02-19 20:05:39下载
- 积分：1
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GSD-CPV
说明： 西门子STEP7，费斯托阀岛的GSD文件，硬件组态使用(SIEMENS STEP7, GSD File of Fisto Valve Island, Hardware Configuration Use)
- 2020-06-20 07:20:01下载
- 积分：1
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QPSK_AWGN_GRAy_ErrorCalculate
信息经格雷码映射，进行QPSK调制并通过AWGN信道发射，在接收端进行QPSK解调，并统计误符号率和误码率。(Information on the Gray code mapping, QPSK modulation and emission through the AWGN channel, QPSK demodulator at the receiving end, and the statistical symbol error rate and bit error rate.)
- 2012-05-11 10:27:46下载
- 积分：1
