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320338633PEG
LDPC的矩阵生成，准循环码矩阵的生成，采用PEG算法生成，使用块矩阵方法(produce QC-LDPC matrix)
- 2020-07-08 11:48:57下载
- 积分：1
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程序
说明： 当今世界电子对抗日益激烈，对于雷达低截获和抗干扰能力的研究越来越受到关注。OFDM (Orthorgonal Frequency Division Multiplexing，正交频分复用)雷达具有大时宽带宽积、波形设计方法灵活、频谱利用率较高以及低截获性能好的特性，因此逐渐成为雷达领域的重点研究方向。除此之外，OFDM信号时域和频域波形都比较复杂，当雷达信号采用OFDM技术时，敌方很难精确估计发射信号波形和瞬时频率，使得截获机不容易分析出检测到的雷达信号。当面对敌方的欺骗式干扰时，对于同样具有大时宽带宽积的线性调频信号，OFDM信号具有更好的抗欺骗式干扰的性能，因此OFDM技术在雷达上的运用愈来愈得到关注。(As electronic warfare becomes increasingly fierce, low intercept probability radar has become an important research filed in electronic countermeasures. OFDM (Orthorgonal Frequency Division Multiplexing) radars have gradually emerged due to their high spectrum efficiency, large time-bandwidth product, flexible waveform design methods, and low intercept probability.In addition, because of the complex time-frequency characteristics of the transmitted signal in OFDM radar, the enemy is difficult to estimate the transmitted signal waveform and instantaneous frequency.When faced with enemy deception interference, OFDM signals have better anti-spoofing performance for LFM signals that also have a large time-bandwidth bandwidth product. Therefore, the use of OFDM technology in radar is attracting more and more attention. .)
- 2020-11-19 21:49:39下载
- 积分：1
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高斯信道
说明： 高斯信道下的误码率与瑞利衰落与高斯信道下的误码率的比较分析(Comparison of Bit Error Rate in Gaussian Channel and Rayleigh Fading and Bit Error Rate in Gaussian Channel)
- 2019-06-15 19:30:24下载
- 积分：1
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wnn_forcast1.4
小波神经网络预测系统源代码包，小波神经网络预测系统源代码包(Wavelet neural network prediction system for the source code package, wavelet neural network prediction system source code package)
- 2010-02-21 19:57:31下载
- 积分：1
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15883848radarechoSimulation
各种雷达的回波信号模拟，有很好的参考价值，可以用来做雷达信号处理算法的研究
- 2021-04-28 02:58:44下载
- 积分：1
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chapter3
知道完美信道状态信息与不知道信道状态信息的信道容量的对比(Know the perfect channel state information and does not know the channel state information of the channel capacity of the contrast)
- 2013-03-30 10:09:54下载
- 积分：1
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fractal-geometryMATLAB
利用制作分形几何图形,给出了几个典型曲线！(Making use of fractal geometry)
- 2014-04-19 11:02:36下载
- 积分：1
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AGPS-position
AGPS定位基本原理浅析，AGPS（Assisted GPS，A-GPS，网络辅助GPS）定位技术结合了GPS定位和蜂窝基站定位的优势，借助蜂窝网络的数据传输功能，可以达到很高的定位精度和很快的定位速度，在移动设备尤其是手机中被越来越广泛的使用。(AGPS positioning the basic principles of analysis, AGPS (Assisted GPS, A-GPS, network-assisted GPS) positioning technology combines GPS positioning and cellular base station location advantage, with data transmission function of the cellular network, can achieve high positioning accuracy and very fast positioning speed, especially in the mobile phone devices are more widely used.)
- 2014-04-13 03:43:34下载
- 积分：1
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Optisystem中MatlabComponent模块的扩展应用
通过一个光相位调制器的实例，介绍利用Optisystem 中Matlab Component组件联合M atlab实现用户自定义光学组件的方法。对相位调制基本原理、相位调制器理论模型和实现模型的Matlab代码进行分析，介绍如何将用户自定义器件功能代码关联Matlab Component组件进行仿真，并利用自定义的相位调制器对理论分析进行验证。(Through an example of an optical phase modulator, this paper introduces the method of implementing user-defined optical components by using Matlab Component component in Optisystem combined with M atlab. The basic principle of phase modulation of the phase modulator, theoretical model and implementation model of Matlab code analysis, describes how to simulate the user device function code associated Matlab Component components, and the theoretical analysis was verified by using custom phase modulator.)
- 2020-11-28 11:49:28下载
- 积分：1
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bpsk-qpsk-qam
bpsk qpsk 16qam 64qam频带上的调制解调信号包括误码率曲线，眼图和星座图(bpsk qpsk 16qam 64qam modulation and demodulation)
- 2021-01-26 19:58:37下载
- 积分：1
