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LDPC码
信息通过LDPC编解码误码率与未编码信息误码率比较(Comparison of BER between uncoded information and LDPC code)
- 2018-07-01 19:41:21下载
- 积分:1
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junhengqi
3抽头迫零均衡器,5抽头迫零均衡器,以及恢复信号波形(3-tap zero forcing equalizer, the 5-tap zero forcing equalizer, and the restoration of the signal waveform)
- 2020-11-28 06:59:30下载
- 积分:1
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题三:超声速静压探针设计程序
超声速静压探针程序,采用有旋特征线法求解旋成体绕流流场,能给出任意马赫数下的壁面沿程压力分布情况,给出壁面静压恢复到自由来流静压的位置;(Supersonic hydrostatic probe program)
- 2020-06-23 11:40:02下载
- 积分:1
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2
说明: 2. 关于无线信道的多普勒谱,请回答以下问题:
(1) 在某些无线信道中,多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因;
(2) 无线信道中的多普勒谱有一种经典谱(classic spectrum),请解释产生这种谱形状的机理;
(3) 请用Simulink工具编写代码(S-Function方式),产生一单径瑞利信道,其多普勒谱为经典谱,其中移动速率为120km/h。并请描述:自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions:
(1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing;
(2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape;
(3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)
- 2019-01-15 10:49:35下载
- 积分:1
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QPSK_CMA of SMF
说明: 单模光纤中相干接收QPSK信号应用了CMA算法的简单DSP示例,自带vpa仿真数据。(A simple DSP example of CMA algorithm is used to receive QPSK signals coherently in single-mode optical fibers, with VPA simulation data.)
- 2020-12-15 22:09:14下载
- 积分:1
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等效电荷法
这是一段模拟电荷法(scm)的matlab源程序,求解了超高压输电线路下方工频电场,仿真出了离地面1.5m处的二维电场模型,该程序经过验证,准确无误,谢谢。(This is a matlab source program of the simulated charge method (scm). It solves the power frequency electric field under the UHV transmission line and simulates the two-dimensional electric field model 1.5m above the ground. The program has been verified and is accurate. Thank you.)
- 2021-05-15 21:30:03下载
- 积分:1
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GPS
在GPS中由日期计算年积日,同时可以由年积日计算出日期的方便快捷小程序(Calculated by the date of an annual day in the GPS calculated by an annual Day date convenient shortcut applet)
- 2013-03-11 23:11:07下载
- 积分:1
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LCMV-only
只采用lcmv算法的特性,运用在gps系统(Lcmv algorithm using only the features, the use of the gps system)
- 2011-05-21 22:10:13下载
- 积分:1
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GPSadjustment
测绘gps数据处理中必须应用的内容,用于gps基线网平差(GPS adjustment)
- 2014-11-07 11:35:08下载
- 积分:1
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Voronoin 3D matlab
说明: matlab生成泰森多边形,并到处到txt文件,可用于晶体塑性有限元建模(generate a voronoi model and export to files)
- 2020-06-25 20:00:02下载
- 积分:1