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bpsk-qpsk-qam
bpsk qpsk 16qam 64qam频带上的调制解调信号包括误码率曲线，眼图和星座图(bpsk qpsk 16qam 64qam modulation and demodulation)
- 2021-01-26 19:58:37下载
- 积分：1
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Threads-and-chat-program-example
有客户端的聊天软件，可实现网络通讯，对于了解网络编程有帮助(A client chat software, network communications, network programming help for understanding)
- 2013-10-28 09:33:58下载
- 积分：1
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通信编码
说明： lbc_example：未编码的BPSK调制的性能（理论计算与仿真）、重复码硬判决的性能
lbc_example_SD： 未编码的BPSK调制的性能（理论计算）、重复码硬判决的性能、重复码软判决的性能
lbc_example_SD_EbNo：lbc_example_SD中的性能，并且进一步考虑了码率不同时，对于信道的SNR值进行归一化，以Eb/No = SNR/(2*R)为横坐标时的比较结果
lbc_example_Hamming_EbNo：汉明码，硬判决译码的性能(Lbc_example: Performance of uncoded BPSK modulation (theoretical calculation and simulation), performance of duplicate code hard decision
Lbc_example_SD: Performance of uncoded BPSK modulation (theoretical calculation), performance of hard decision of duplicate code, performance of soft decision of duplicate code
The performance of lbc_example_SD_EbNo: lbc_example_SD is considered, and the SNR value of channel is normalized when the bit rate is different. The comparison results are obtained when Eb/No = SNR/(2*R) is the abscissa coordinate.
Lbc_example_Hamming_EbNo: Hamming Code, Performance of Hard Decision Decoding)
- 2019-04-24 14:02:35下载
- 积分：1
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46268456OFDMChanTstEuql
OFDM系统经典均衡MATLAB程序,
包括ZF均衡，MMSE均衡，RLS均衡(ZFE ,mmse, rls,for OFDMsystem )
- 2012-05-07 00:29:37下载
- 积分：1
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mod_demod
在matlab环境下实现通信系统中的BPSK，QPSK，16QAM，调制。成型滤波和匹配滤波都采用根升余弦函数。(In the matlab environment to achieve communication system BPSK, QPSK, 16QAM, modulation. Shaping filter and matched filter are used root raised cosine function.
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- 2010-12-01 23:28:12下载
- 积分：1
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project
说明： 信号样本自相关分析，IQ两路绘制波形，频偏估计(Signal sample autocorrelation analysis, IQ two-way waveform drawing, frequency offset estimation)
- 2020-11-04 17:58:38下载
- 积分：1
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ModifiedLMMSETurboEqualization
turbo均衡的一种算法修改的MMSE算法对深刻理解TE很与帮助。(turbo balanced an algorithm modified MMSE algorithm is with a deep understanding of TE help.)
- 2009-01-07 10:39:25下载
- 积分：1
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2dpsk
设计了差分编码移相键控(2DPSK)调制解调系统的工作流程图,并利用 Matlab 软件对该系统的动态进行了模拟仿真。利用仿真的结果,从基带信号的波形图可以衡量数字信号的传输质量 由系统的输入和输出波形图可以看出,仿真实验良好 。(Design of a differential phase shift keying encoding (2DPSK) modulation and demodulation system working flow chart of the system using Matlab software to simulate the dynamics simulation. Using simulation results, from the baseband signal waveform can be measured digital signal transmission quality by the system' s input and output waveforms can be seen that simulation is good.)
- 2011-05-01 09:56:08下载
- 积分：1
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2
说明： 2. 关于无线信道的多普勒谱，请回答以下问题：
(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因；
(2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理；
(3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。
(On the wireless channel of the Doppler spectrum, please answer the following questions: (1) In some radio channels, the Doppler frequency shift will cause the output signal of the wireless channel aliasing. Please describe the aliasing produced a variety of reasons (2) wireless channel in the Doppler spectrum has a classical spectrum (classic spectrum), please explain the mechanism of produce such spectral shape (3), please use the Simulink tool to write code ( S-Function mode), resulting in a single-path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h. And requested the answer: that they used computer-generated classical spectrum is the right possible way.)
- 2009-11-08 15:50:50下载
- 积分：1
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random_num_gen
通过随机数产生原理进行verilog编程，从而实现FPGA的随机数产生(Through random number generation principle for Verilog programming, so as to achieve the FPGA random number generation)
- 2017-07-08 11:55:41下载
- 积分：1
