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卫星通信中数字调相信号调制方式识别方法研究
针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK),对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析,提出了一种联合特征参数的信号调制识别方法.(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)
- 2020-06-21 09:20:02下载
- 积分:1
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rsvp-agent
GMPLS中的相关信令协议RSVP仿真代码,网上下载的,希望能适合大家(Related signaling protocols in GMPLS RSVP simulation code, download, and I hope we can fit)
- 2011-06-14 15:38:45下载
- 积分:1
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Butterworth-MITRES_6_007S11_lec24
Butterworth filter design for digital signal processing
- 2012-11-15 03:00:54下载
- 积分:1
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Hetrogenous
Paper on hetrogenous network
- 2018-04-11 20:52:39下载
- 积分:1
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Carrier_Delay_Syn
说明: 给程序给出了功率放大器预失真过程中的时延同步问题。(This codes provides the time delay synchronization in the process of power amplifier predistortion.)
- 2009-07-23 08:11:09下载
- 积分:1
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雷达协同干扰策略及干扰方法研究_付昕莹
说明: 这是一篇讲述多雷达协同干扰策略和方法的论文,可参考进行相关研究。(This is a paper on the strategy and method of multi-radar cooperative jamming, which can be referred to for relevant research.)
- 2020-12-03 21:56:07下载
- 积分:1
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fast-subspace-algorithm
为了对空间辐射源进行精确定位" 建立了基于任意阵列对多目标源进行二维DOA估计的数学模型。将 MUSIC算法推广到三维空间阵列可以对辐射源进行二维高精度测向,但由于其需要估计接收数据的协方差矩阵和进行特征分解, 因而其计算量较大。利用多级维纳滤波器的前向递推获得信号子空间和噪声子空间,不需要估计协方差矩阵和对其进行特征分解,从而降低了MUSIC算法的计算量。将文中的方法应用于任意阵列的二维DOA估计中进行计算机仿真和实际侧向系统性能验证,实验结果均表明该方法达到了MUSIC算法的性能,但与常规MUSIC算法相比降低了计算量.( In order to space radiation source for precise positioning" based on arbitrary array to multiple target source 2D DOA estimation model. The MUSIC algorithm is extended to three-dimensional space to two-dimensional array of radiation source for high precision direction finding, but due to the need to estimate the covariance matrix and eigenvalue decomposition, and the large amount of calculation. Use of multistage Wiener filter forward recursion received signal and noise subspace, does not need to estimate the covariance matrix and the eigenvalue decomposition, which reduces the computation of MUSIC algorithm. This method is applied to an arbitrary array DOA estimation for computer simulation and actual lateral system performance verification, the experimental results show that this method achieves the performance of MUSIC algorithm, but with the conventional MUSIC algorithm reduces the calculation amount.)
- 2012-03-09 16:03:44下载
- 积分:1
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Soundsourcelocalizationforobotauditorysystemusingt
基于互相关函数,采用求和广义互相关函数(summed-GCC)法用于机器人系统平台。由于采用不同的映射函数(mapping functions),GCC法在该平台下,只需三个麦克风即可进行三维定位,突破了基于TDOA法进行三维声源定位最少需4个麦克风的限制(Based on cross-correlation function, using generalized cross-correlation function sum (summed-GCC) method for the robot system platform. Because of using different mapping function (mapping functions), GCC method in the platform, the only three to three-dimensional microphone positioning, a breakthrough TDOA method based on three-dimensional sound localization will take at least four microphone restrictions)
- 2009-03-06 09:30:59下载
- 积分:1
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802.16标准
802.16E的协议文档,完整版本。其中包括3个版本。(802.16E protocol document, full version.)
- 2020-06-19 02:40:01下载
- 积分:1
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Lab05_ATM
Asynchronous Transfer Mode (ATM) is a connection-oriented, packet-switched
technology. The packets that are switched in an ATM network are of a fixed length, 53
bytes, and are called cells. The cell size has a particular effect on carrying voice traffic
effectively. The ATM Adaptation Layer (AAL) sits between ATM and the variable-length
packet protocols that might use ATM, such as IP.
- 2010-01-11 23:01:01下载
- 积分:1