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Aeronautical-channel-modeling
主要讲解了航空信道模型的仿真实现和参数选择，给出了各信道场景下的接收信号星座图以及概率密度曲线。(Mainly on the aviation simulation channel model implementation and parameter selection are given scenarios each channel received signal constellation and the probability density curve.)
- 2011-06-08 14:39:12下载
- 积分：1
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adhoc-network
对学习AD HOC网络很有帮助的一些电子文档，可以了解此网络的基本原理和一些协议之间的比较，以及改进。大家看看肯定会有所帮助哦(The study of electronic document helpful AD HOC network)
- 2012-03-10 20:31:57下载
- 积分：1
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IESS-207E
iEEE 207 标准 信道编码相关 卫星通信(iEEE 207 standard channel coding satellite communications)
- 2021-04-29 16:18:42下载
- 积分：1
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4
说明： ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2
种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本
思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列
的算法有较高的估计精度，但降纸了系统传输效率。(Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundational methods
。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency
ofset are analyzed．Then it discusses their basic thoughts。implementing methods and simulation resuits．
Finally。merits and demerits of every algorithm are supposed．It concludes that the cycling prefix—
based algorithm has less complexity and less precision。and that the training sequence—based algorithm
has better estimation performance at the cost of transmission efficiency．)
- 2010-05-18 18:34:44下载
- 积分：1
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target-tracking-in-three-dimensional
介绍了三点垂直线阵被动定位的原理. 结合矢量水听器测得的方位角和高低角及到达
阵元间的时延差, 建立了三维坐标下的状态方程和观测方程.运用扩展卡尔曼滤波算法, 研究了该系统的目标运动分析问题. 通过蒙特卡洛模拟仿真试验, 结果表明上述方法具有较高的定位性能,有较强的使用价值.
(Introduced three vertical linear array passive location principle of vector hydrophone. Combining the measured azimuth angle and pitch angle and arrival time delay difference between array elements, establish the three-dimensional coordinates of the state equation and observation equation. Using the extended Calman filter algorithm, on the target motion analysis by Monte Carlo simulation. Test, results show that the method has high positioning performance, has the strong use value.)
- 2012-03-09 15:34:30下载
- 积分：1
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mm
说明： 此文档中主要说明了基于Matlab的时间抽取基2FFT算法的一些注意事项以及程序是可行的。(In this document mainly describes the time taken based on the Matlab-based algorithm 2FFT some attention as well as the procedure is feasible.)
- 2008-03-16 22:18:55下载
- 积分：1
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A-Novel-Variable-Step-Size-NLMS-Algorithm-and-Its
By building the generalized Sigmoid function relationship between normalized step-size and the power of error signal,
a novel variable step-size NLMS algorithm is proposed. It is proved that the step-size of NPVSS-NLMS changes as
the new algorithm does when A=σv
-m and B=2. The physical meanings of the parameters in this algorithm are
explored. The theoretical analysis illustrate that this algorithm combine the virtues of NPVSS-NLMS and Sigmoid
function, and it leads to faster convergence rate and lower final misalignment. The computer simulation results
support the theoretical analysis.
- 2013-07-06 22:59:51下载
- 积分：1
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indirect-addressing-method-
详细介绍了西门子PLC的间接寻址方法，对于应用西门子PLC很有用处。(Detailed the the Siemens PLC indirect addressing method is useful for the application of the Siemens PLC.)
- 2013-02-01 11:42:13下载
- 积分：1
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Estimation-Theory
Solution Manual to Fundamentals of Statistical Signal Processing - Estimation Theory
By Steven M.Kay
- 2020-10-12 23:57:32下载
- 积分：1
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实验指导书第一部分
说明： 通过几个图文示例，详细说明了如何在matlab上通过虚拟串口发送和接受数据(Through a few graphic examples, detailed description of how to send and receive data through virtual serial port on matlab)
- 2020-04-20 17:02:25下载
- 积分：1
