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Q_DSSS
直扩码分多址DS-CDMA是利用高速的WALSH正交码序列作为地址码，与多用户信息数据相乘得到信息数据的直接扩频信号，再经过BPSK调制后发送出去，经过AWGN无线信道的传输后，在接收端与本地产生的地址码进行相关检测，从中将地址码与本地码一致的用户数据选出，把不一致的用户数据删除。(DS-CDMA DS-CDMA is the use of high-speed WALSH orthogonal code sequences as address code, with multi-user information data has been multiplied by the direct spread spectrum data information signal, and then after a BPSK modulated sent through AWGN channel after transmission, at the receiving end with the locally generated address code associated Detect, which will address code with local codes consistent user data elected to delete user data inconsistencies.)
- 2009-03-02 14:01:22下载
- 积分：1
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BPSK
用matlab实现简单的bpsk系统，熟悉bpsk系统的特性(Implementing BPSK with MATLAB)
- 2019-01-26 16:56:31下载
- 积分：1
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六种数字调制信号的识别
说明： 决策树分类法识别ASK,PSK,FSK六种数字信号的调制识别(Decision tree classification for modulation recognition of ask, PSK and FSK digital signals)
- 2020-03-18 22:10:48下载
- 积分：1
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OFDM
OFDM调制解调系统的设计，内涵matlab simulink的模型和误码率监测的M文件，改OFDM调制解调系统模型可以适应于matlab较低版本，可执行。(OFDM modulation and demodulation system design, the connotation Matlab Simulink model M-file and bit error rate monitoring, change the OFDM modulation and demodulation system model can be adapted to a lower version of the executable in matlab.
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- 2012-05-10 11:34:52下载
- 积分：1
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仿真各种模型下常用水声信道
说明： 可以直接仿真各种模型下常用水声信道，包含Bellhop,Kraken等源代码(Simulating the basic underwater acoustic channel, including the code and theory of Bellhop, Kraken and so on.)
- 2020-06-09 11:55:50下载
- 积分：1
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BlueTooth4.0
这是蓝牙4.0的规范说明文档，对于了解4.0协议有所帮助。(This is the Bluetooth 4.0 specification document helpful for understanding the 4.0 protocol.)
- 2013-10-14 21:50:52下载
- 积分：1
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卷积编解码
说明： 使用Simulink(或m语言)仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(m语言方式)，不是调用Simulink(或m语言)的已有编码、译码函数。并在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。(Simulink (or M language) is used to simulate convolutional coding, and Viterbi decoding method is used to decode, in which the coding and decoding are all written by themselves (M language mode), rather than calling the existing coding and decoding functions of Simulink (or M language). In the additive white Gaussian noise channel, the relationship curve between bit SNR and BER is drawn.)
- 2021-03-21 11:50:06下载
- 积分：1
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TCM-with-BCJR-(Log-Map)
TCM with BCJR (Log-Map) & channel Encoder Coded_Modulation
- 2015-01-09 22:28:14下载
- 积分：1
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CS100大气压力传感器
CS100大气压力传感器应用与中文手册，大气压力长时间测量(CS100 Application of atmospheric pressure sensor)
- 2017-10-23 21:02:34下载
- 积分：1
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chirpmodsys
说明： 可实现，线性调频信号的产生，波形显示，波形解调和码字解调功能(Realizable, chirp signal generation, waveform display, waveform demodulation and codeword demodulation)
- 2020-06-18 15:20:02下载
- 积分：1
