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BCJR
BCJR 算法的matlab实现，经测试无误(matlab code of BCJR, tested without errors)
- 2021-01-07 16:18:53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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明泰读卡器
对铭泰读卡器不同扇区进行读写操作，初始化扇区，扇区信息加密。(Reading and Writing Mingtai Card Reader)
- 2020-06-17 19:40:01下载
- 积分：1
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ECE 4634
Zero forcing - with interference cancellation
- 2019-04-27 21:44:17下载
- 积分：1
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BPSK调制仿真
bpsk调制仿真，可直接用
1、数字调制方法
数字调制就是把数字基带信号的频谱搬移到高频处，形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控（ASK）、频移键控（FSK）、绝对相移键控（PSK）、相对（差分）相移键控（DPSK）。在接收端可以采用想干解调或非相干解调还原数字基带信号。
数字信号的传输方式分为基带传输和带通传输。然而，实际中的大多数信道（如）无线信道具有丰富的低频分量。为了使数字信号在带通信道中传输，必须用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。(1, digital modulation method
Digital modulation is the transfer of the spectrum of a digital baseband signal to a high frequency to form a bandpass signal suitable for transmission in the channel. The basic digital modulation methods are amplitude keying (ASK), frequency shift keying (FSK), absolute phase shift keying (PSK), and relative (differential) phase shift keying (DPSK). At the receiving end, the digital baseband signal can be restored by using dry demodulation or non-coherent demodulation.
Digital signal transmission methods are divided into baseband transmission and bandpass transmission. However, most channels in practice, such as wireless channels, have rich low frequency components. In order for a digital signal to be transmitted in a band channel, the carrier must be modulated with a digital baseband signal to match the signal to the characteristics of the channel.)
- 2019-05-28 10:46:01下载
- 积分：1
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MSAFadapt
多子带自适应算法，能够有较好的鲁棒性以及稳态特性。(The multi-subband adaptive algorithm has better robustness and steady-state characteristics.)
- 2019-04-24 10:11:02下载
- 积分：1
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aodv
opnet中aodv协议的模型，大家自己看好了(opnet in aodv protocol model, we own a good)
- 2021-04-21 23:08:49下载
- 积分：1
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W-M
无几何距离组合联合MW组合探测周跳的改进算法(No combination of geometric distance detection of the Joint MW combined cycle slip Algorithm)
- 2011-06-09 15:51:37下载
- 积分：1
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margin_Budget
说明： 根据卫星EIRP值、接收系统G/T值等参数仿真了卫星通信的上下行及总链路预算的matlab程序 及论文《卫星传输链路的计算与应用》(uplink and downlink margin budget)
- 2020-07-07 09:57:15下载
- 积分：1
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pracsim1
通信基本仿真,适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器（巴特沃斯Butterworth,切比雪夫Chebyshev）,Bartlett周期图谱，加窗Bartlett周期图谱，基带波形仿真，IIR的贝塞尔滤波器Bessel Filter，二进制对称信道Binary Symmetric Channel仿真，比特序列，Remez滤波，BPSK复合基带信号仿真，载波生成器，椭圆滤波器Elliptical Filter，FFT,FSK调制及解调，高斯噪声Gaussian仿真，直方图，理想AM，线性PLL，BP混淆器，理想MPSK，正交振幅调变（QAM，Quadrature Amplitude Modulation），正交相移键控(QPSK)，Rayleigh Noise瑞利噪声，Yule-Walker Psd功率谱密度函数。(Butterworth Chebyshev)
- 2009-12-26 23:04:47下载
- 积分：1
