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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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LBM3D
模拟空间多孔介质,用matlab三维曲面重构。(The porous media in the space is simulated, and the three-dimensional surface is reconstructed.)
- 2018-03-05 23:29:33下载
- 积分:1
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Snakes
说明: Snake模型,也就是常说得Active Contour模型的MATLAB实现,其中还包含了原文献。(Snake model, which is often put Active Contour MATLAB model, it also includes the original literature.)
- 2006-03-29 15:35:12下载
- 积分:1
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阈值分割
说明: 迭代法阈值分割图像,可以实现精确地像素级分割。(Iterative threshold segmentation of images)
- 2019-02-25 08:28:09下载
- 积分:1
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Noma-master
说明: 提供了一个研究NOMA,如何NOMA解决了5G需求、NOMA正在进行的标准化工作以及NOMA与其他应用程序的比较研究像OFDMA这样的OMA方案。我们还展示了NOMA中用户吞吐量的改进在MATLAB仿真的帮助下实现OFDMA。(This paper provides a study of NOMA, how NOMA addresses the 5G requirements, ongoing standardization efforts for NOMA and a comparative study of NOMA with other OMA schemes like OFDMA. We have also demonstrated improvements in the throughput of the users in NOMA as compared to OFDMA with the help of MATLAB simulations.)
- 2021-01-13 16:08:43下载
- 积分:1
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16QAM
产生16QAM基带信号,成型滤波通过AWG信道,接收端得到误码率和星座图。(The 16QAM baseband signal is generated, the shaping filtering is passed through the AWG channel, and the receiving end obtains the BER and constellation diagram.)
- 2018-06-07 18:55:06下载
- 积分:1
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Realization_of_QPSK
说明: QPSK的MATLAB实现包括发送数据、QPSK比特映射、成型滤波、载波调制、载波解调、收成型匹配、IQ抽样判决、接收比特数据恢复8个模块(The MATLAB implementation of QPSK includes eight modules: sending data, QPSK bit mapping, shaping filtering, carrier modulation, carrier demodulation, shaping matching, IQ sampling decision and receiving bit data recovery.)
- 2019-04-23 10:10:31下载
- 积分:1
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AIS
將經緯度資料轉換為AIS之AIVDM的NMEA語句,並輸出至串列埠。(Arduino program for translate Latitude and Longitude data into AIVDM NMEA phrase.)
- 2014-02-12 20:19:47下载
- 积分:1
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SVM-KM
svm详细例子(包括分类,回归)等。需要的人,下载试试。多交流.我需要svm-smo的matlab源码。谁有?(SVM detailed examples (including classification, regression) and so on. Those who need it, download a try. More exchanges. Svm-smo I need the matlab source code. Who?)
- 2008-12-13 15:04:08下载
- 积分:1
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Fischer_algo
OFDM系统的自适应功率和比特分配算法,实现系统资源的自适应分配(3)-原创(adaptive allocation for OFDM system)
- 2009-10-10 20:38:10下载
- 积分:1