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750-914_XH-canopeneds
WAGO的标准EDS文件,可以用于WAGO的远程IO跟第三方的PLC进行通讯(This is WAGO eds files)
- 2017-03-21 00:29:54下载
- 积分：1
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IEEEwavelet.ps
research papers on wavelet transform
- 2012-09-21 11:48:41下载
- 积分：1
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ultrasonic
ultrasonic curcit
amjadmftah@hotmail.com
- 2010-11-12 10:21:08下载
- 积分：1
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opticalcommunication1
optical cummunication examples
- 2012-01-12 22:10:44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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pro-report
SIGNAL DETECTION FOR SPECTRUM SENSING
Spectrum sensing is a critical functionality in cognitive radio communications as it must be performed before allowing unlicensed users to access a vacant licensed band. Energy detector is also known as radiometer and it is most common method of spectrum sensing because of its low computational and implementation complexities. The coherent detector, also referred to as a matched filter, can improve detection performance if the primary transmitted signal, s, is deterministic and known a priori.
- 2013-04-08 13:53:19下载
- 积分：1
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adaptive modulation and coding
adaptive modulation and coding
- 2020-06-27 04:00:01下载
- 积分：1
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3G
说明： 3G方面的论文，TD-CDMA WCDMA(Papers on 3G, TD-CDMA WCDMA)
- 2011-05-05 10:55:12下载
- 积分：1
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nfc2
NFC协议第二部分，描述了NFC tag 2 通讯协议(NFC protocol second part describes the communication protocol NFC tag 2)
- 2016-06-26 11:21:28下载
- 积分：1
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translate
数字通信技术的收集与介绍 希望对大家有用( Communicate)
- 2011-07-20 10:25:06下载
- 积分：1
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