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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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final gardner
qpsk完整解调，包括载波同步，位同步采用迟早门，载波同步采用判决反馈(qpsk complete demodulation, including the carrier synchronization, bit synchronization using the door sooner or later, the use of decision feedback carrier synchronization)
- 2011-08-06 21:38:36下载
- 积分：1
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OQAM_20130906
OQAM-OFDM发射端和接收端的简单实现,没有加入信道(A simple implementation of the OQAM-OFDM transmitter and receiver without adding channels)
- 2020-07-02 18:00:02下载
- 积分：1
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基于Matlab加噪语音的FIR滤波器设计_申艳
说明： 数字信号处理，设计数字滤波器，利用MATLAB语言仿真实现(Digital Signal Processing, Design of Digital Filter and Realization by MATLAB Simulation)
- 2019-04-12 20:51:10下载
- 积分：1
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ldpc
说明： ldpc编码的matlab实现，供大家参考(Matlab implementation of LDPC coding for your reference)
- 2021-01-25 16:28:43下载
- 积分：1
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CSharp_tif
该代码实现的功能是对.tif格式的图片自动分页，并且可以实现数据的查找切割提取。(To achieve the functions of the code. Tif format images automatically paging, and extract data to find cutting.)
- 2012-07-14 11:40:35下载
- 积分：1
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直流电机
说明： 直流电机功能的实现，功能齐全，使用c语言。更加完整。(Realization of DC motor function)
- 2020-06-22 10:32:19下载
- 积分：1
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on errorFrame
capl错误帧,在CANOE软件中使用，ECU开发测试时验证错误帧功能；(Capl error frame is used in CANOE software, and ECU verifies the function of error frame when developing and testing.)
- 2020-07-09 16:58:55下载
- 积分：1
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sd模型
说明： 完整的Verilog验证模型，包括设备完整的状态。(Complete verilog Verification Model)
- 2020-06-16 09:00:01下载
- 积分：1
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[MATLAB]最小和LDPC译码算法MATLAB实现(285266)
LDPC码的编译码算法，matlab实现，包含常用的生成算法和解码算法。可以直接运行(LDPC code encoding and decoding algorithm, matlab implementation, including the common generation algorithm and decoding algorithm. Can run directly)
- 2017-12-27 14:36:21下载
- 积分：1
