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通过串口采集下位机信息 smart
本程序是基于LABWINDOWS/CVI 的，主要是通过串口采集下位机信息，然后显示状态信息并通过串口发送命令字节。(The program is based on LABWINDOWS/CVI.It get message from RS232and display status,then send command by RS232.)
- 2011-11-28 21:08:44下载
- 积分：1
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gray_counter_vhd
ldpc verilog code has been descripted in this program
- 2017-12-06 01:05:36下载
- 积分：1
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4FSK
说明： 产生随机信号，采用4fsk调制方式通过一个水声信道，再采用非相干解调(Generate random signal, use 4FSK modulation to pass through an underwater acoustic channel, and then use incoherent demodulation)
- 2020-11-17 10:09:41下载
- 积分：1
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user_two
Ds_CDMA EASI 算法使用两个用户的分离实现PN序列以及用户信息的分离(To solve the problem of the direct sequence code division multiple access (DS-CDMA) system multiuser detection, this paper proposes a variable step-size based on performance index (PI) EASI algorithm for information code and chip sequence blind estimation)
- 2013-08-26 10:17:02下载
- 积分：1
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mangfenli
本程序主要使用matlab语言描述了信号调制方式是别的过程，当信噪比大于10时可以实现对所选信号调制方式的识别(signal processing matlab large than 10dB)
- 2011-12-11 15:43:07下载
- 积分：1
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TDMA接入方式的性能研究
研究TDMA接入方式的性能研究,包含吞吐量与传输时延、传输速率(TDMA suhdiuah shduah9hiisahid)
- 2018-05-09 09:05:26下载
- 积分：1
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LDPC仿真高斯信道
matlab下的LDPC仿真,高斯信道，调制方式为QPSK(A simulation of LDPC on matlab)
- 2018-11-11 16:53:22下载
- 积分：1
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5
说明： 5. 在三条径的瑞利信道中，对于直接序列扩频：
(1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。
(2) 设频率已经同步，请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已经同步，请设计DS-CDMA一种具体的频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(5. In three-path Rayleigh channel, for direct sequence spread spectrum:
(1) please design a specific code division navigation aided channel estimation method for ds-cdma, and adopt equal-beneficial combination and maximum ratio combination for receivers respectively.Simulink is used to simulate and draw the relationship curve between bit SNR and channel estimation mean square error and the relationship curve between bit SNR and bit error rate.
(2) assuming that the frequency has been synchronized, please design a specific single-stop sliding correlation time synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and the acquisition probability curve.
(3) if the time has been synchronized, please design a specific frequency synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and frequency synchronization error curve.)
- 2019-01-15 10:58:23下载
- 积分：1
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bpsk
bpsk调制matlab代码,仿真验证正确(bpsk modulation)
- 2013-10-10 20:14:15下载
- 积分：1
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DS-CDMA-with-PASTd-MUD-with-m-DS
DS-CDMA链路中加入基于子空间的PASTd多用户检测方法。系统中采用m序列阔频，可以通过高斯信道或瑞利信道。可以直接运行得到不同信噪比下的误码率曲线。(DS-CDMA link added Subspace-based multiuser detector PASTd. M sequence used in the system wide-band, Gaussian channel, or by Rayleigh channel. Get different signal to noise ratio can be run directly under the BER curves.)
- 2021-04-04 12:39:04下载
- 积分：1
