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qpsk
摘 要:根据HFC网络上行信道的特性,建立了信道模型 分析了上行信道中存在的各种噪声对QPSK
调制技术的影响。结果表明在C /N (传输信道载噪比)较低的情况下,采用QPSK调制方式,可以提高系
统的抗干扰能力。
关键词: QPSK 光纤同轴电缆混合网 上行信道 噪声(Abstract: HFC network in accordance with the characteristics of the uplink channel, the establishment of a channel model an analysis of the various uplink channel noise on the impact of QPSK modulation. The results show that the C/N (transmission channel carrier-to-noise ratio) lower, the use of QPSK modulation, can improve the system of anti-interference ability. Keywords: QPSK hybrid fiber coaxial cable network uplink channel noise)
- 2009-04-12 15:45:03下载
- 积分：1
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wujiaoxing
调用line（）函数与plot（）函数，运用for循环命令。
线宽5，线条颜色为黑色，填充颜色与线条颜色不同。
坐标轴取等长刻度，标题：正五角星，x轴、y轴加上标注。(Calling line () function with the plot () function, use a for loop command. 5 width, line color is black, filled with color and line color is different. Take the long axis scale, etc., Title: Positive pentagram, x-axis, y-axis plus mark.)
- 2015-01-09 12:51:45下载
- 积分：1
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ver_0.83
matlab code for CNN - Convolutional neural network class
- 2015-02-03 13:32:10下载
- 积分：1
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Matlab
涉及粒子速度计算、圆心和半径拟合、去穷区间的积分、简单滤波器的设计、BP神经网络训练(Involves particle velocity calculation, center and radius of fitting, to poor interval integral, simple filter design, the BP neural network training)
- 2015-04-20 11:26:23下载
- 积分：1
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Codes_MandarKulkarni_DynamicTDDSelfbackhaul
5G network with NOMA performance analysis
- 2019-03-22 04:17:08下载
- 积分：1
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NNC
分数阶仿真优化，可以解决许多分数阶问题。(Fractional simulation optimization can solve many fractional problems.)
- 2019-04-30 16:21:51下载
- 积分：1
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MOMRWGrectangle2238Gright
矩形导电平板，长为1厘米，宽为1.5厘米。22G－38G的宽带RCS矩量法求解(Rectangular conductive plate, 1 cm long, 1.5 cm wide. 22G-38G broadband RCS method of moments)
- 2010-11-05 15:41:33下载
- 积分：1
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p
说明： 是处理噪声的一个小程序很有用，希望对大家有所帮助(To deal with noise, a small program useful and want to help everyone)
- 2009-11-22 09:21:01下载
- 积分：1
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AF-and-DF-protocol
协作通信中放大转发（AF）和译码转发（DF）协议理论和仿真曲线对比(The comparison of theoretical and simulation curves for AF and DF protocol in cooperative communication)
- 2015-01-08 20:58:14下载
- 积分：1
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Torque-calculate
DC motor selection via torque calculation
- 2015-02-12 19:37:04下载
- 积分：1
