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demodulation-of-MFSK-signals
提出了一种多迸制频移键控(M娲K)信号调制分类及解调方法，选取截获接收机输出的MFSK信
号的时频脊线作为分类特征，利用无监督聚类算法求取最佳聚类数M．利用时频脊线的Ham：小波变换
估计码元宽度，并且利用对应最佳聚类数的聚类中心确定抽判门限，通过对时频脊线抽样判决，实现了
MFSK信号的解调．理论分析和对实际信号的处理结果证明了此算法的可行性．(new algorithm is proposed for elassillcation and demodulation of MFSK signals．The ridge of time—
frequency representation of MFSK signals is analyzed．Modulation elassi_fieation is realized by using the unsupervised
clustering algorithm to determine the optimal nulnllt2r of clusters．In order to demodulate MFSK signals，the Haar
wavelet transform is used to estimate the code—width and the centers of optimal clusters are used to determine
thresholds．Theoretical analysis and practical signal processing results justify the robusticity and the efficiency of the
new classification and demodulation Mgorithm．)
- 2015-05-30 19:10:23下载
- 积分：1
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AIRCRAFT
建立了四旋翼飞行器悬停姿态动力学模型，并进行了仿真分析，在开环控制的前提下分析了结构增稳和橡筋阻尼方法对飞行器平台姿态定性的影响，并提出了一种开环控制下实现稳定悬停的策略。(The establishment of a four-rotor aircraft hovering attitude dynamics model and simulation analysis, under the premise of open-loop control analyzes the impact of structural and elastic damping augmentation method for aircraft platform attitude qualitative and presents an open loop realization of stable hover control strategy.)
- 2021-04-13 13:28:56下载
- 积分：1
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1001-5965(2013)04-0564-05
基于FFT 和专家系统的BLDCM 系统故障检测与识别.pdf(Fault detection and identification for dual-redundant BLDCM system using
FFT algorithm and expert system approach)
- 2014-02-02 08:03:47下载
- 积分：1
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Wavelengthcorrectionforfiberspectrometer
说明： 随着人们对光谱测量仪器灵活性、 微型化的要求 ,便携式光纤光谱仪在实际生产测量中的需求也越来越大 ,对其测量性能的要求也越来越高。根据光纤光谱仪的测量原理 ,利用波长与CCD探测器单元格一一对应的关系 ,提出了一种波长校正的方案 ,波长校准精度可以达到0.5nm ,重复性达0.1nm。(Wit h people′ s requirement for spect rometer are agility and micromation , portable
fiber spect rometer is needed more and more widely in practical measurement , and t he
requirement for it s measurement capability get s more and more higher . According to t he
measurement principle of t he fiber optic spect rometer and the cor responding relationship
between t he wavelengt h and the CCD detector′ s cell , a wavelengt h correction met hod is p ut
forward in t his paper , t he wavelengt h p recision can reach 0. 5nm and t he repeatability can reach
0. 1 nm.)
- 2010-04-11 11:02:17下载
- 积分：1
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KIVA 3V的入门介绍
KIVA 3V的入门介绍、求解控制方程、边界条件、计算网格、控制方程的离散与求解、程序流程。(Getting KIVA 3V introduction, solving equations, boundary conditions, grid computing, control discrete and solving equations, the program flow.)
- 2014-02-04 05:45:54下载
- 积分：1
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LIDAR
一篇关于利用lidar数据强度信息进行滤波的文献(Strength of an information on the use of lidar data in the literature filtering)
- 2011-02-16 10:07:28下载
- 积分：1
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Optimal-power-allocation-for-AF
。研究了瑞利衰落信道下两跳放大前传协作中继系统的最优化功率分配问题。推导了高信噪比条件下的协作中继系统的中断概率的理论公式.
协作中继 放大前传 最优化功率分配 误符号率 中断概率(Optimal power allocation for two hops amplify- and- forward cooperative relaying communication systems in Rayleigh fading channel was studied.
cooperative relaying amplify-and-forward optimal power allocation symbol error rate outage probability)
- 2011-11-29 17:31:36下载
- 积分：1
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dc-ac-10-kW-inverter
详细设计10KW逆变器的英文资料，内有原理图，有较大参考价值(10KW inverter detailed design information in English, there are schematic, a larger reference value)
- 2011-09-15 09:40:57下载
- 积分：1
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基于小波变换模极大值的电能质量扰动检测与定位
基于小波变换模极大值的电能质量扰动检测与定位.rar(based on wavelet transform modulus maxima of the power quality disturbance detection and location. Rar)
- 2005-07-13 22:42:24下载
- 积分：1
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GeoCorrect
几何纠正的国内重要论文，供同行们参考研究之用(Geometric correction of the major domestic paper reference for colleagues)
- 2011-11-01 16:49:11下载
- 积分：1
