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QPSK仿真程序,包括信道AWGN信道和瑞利波…
QPSk的仿真程序,包括AWGN信道和瑞利信道波形以及星座图-QPSk simulation procedures, including the AWGN channel and Rayleigh channel waveforms as well as the constellation diagram
- 2023-05-28 19:35:03下载
- 积分:1
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LTE 和 4g 无线设计和测量挑战演变
本概述的 3GPP LTE、 SAE 安全方面基于标准化作为2008 年 12 月。在这个时候释放 8 规格尚未完全定义。读者鼓励研究 3GPP 规格,以获得最多的最新版本完整、 最新的网络安全问题的理解。进一步的修改规格预计,包括统一的阶段 2 及标准第三阶段发展的过程。安全体系结构和对 EPS,本概述主题的 3GPP 访问方面33.401 [1] 所述。非 3GPP 访问详列于 3GPP 技术规范33.402 [2],这里不讨论。Packet-Switched (PS) 域中的服务访问需要建立安全用户设备 (UE) 和公共陆地移动网络 (PLMN) 之间的关联。A此外必须 UE 和 IMS 核心之间建立单独的安全关联网络子系统 (IMS CN SS) 之前可以授予访问权限的任何多媒体服务正在主持。
- 2022-05-25 21:35:54下载
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to calculate and get the performance of BER of Synchronous MC
to calculate and get the performance of BER of Synchronous MC-CDMA system-to calculate and get the performance of BER of Synchronous MC-CDMA system...
- 2023-08-05 15:00:04下载
- 积分:1
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p2p穿透源码
网络P2P穿透的源码,简洁实用,里面有详细的注释,简单易懂,方便学习,
- 2022-03-11 06:16:28下载
- 积分:1
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采用C++ Builder开发的GPS接收程序,串口采用SPCOMM控件,能够从接收的数据中读取时间、经纬度。...
采用C++ Builder开发的GPS接收程序,串口采用SPCOMM控件,能够从接收的数据中读取时间、经纬度。-with C Builder development of the GPS receiver procedures used SPCOMM Serial control, to receive data from the reading time, longitude and latitude.
- 2022-01-26 08:05:57下载
- 积分:1
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超宽带(UWB)多频带OFDM物理层与固定
Ultrawideband (UWB) multiband OFDM physical layer with fixed-point transmitterreceiver modeling
- 2022-05-22 18:27:43下载
- 积分:1
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外文现刊目录,提供了多种外文期刊名,供广大爱好者投稿时参考...
外文现刊目录,提供了多种外文期刊名,供广大爱好者投稿时参考-Foreign directory is published, providing a wide variety of foreign periodicals, and writing for the majority of enthusiasts reference
- 2022-04-15 08:44:53下载
- 积分:1
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分vgnhvcbnxcv bn bcvb
分vgnhvcbnxcv bn bcvb-Sub-vgnhvcbnxcv bn bcvb
- 2022-04-28 12:14:48下载
- 积分:1
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- 2022-01-25 23:00:04下载
- 积分:1
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现有数字信号自动调制识别方法大多只适用于无记忆信号,如PSK、ASK、FSK信号等。将有记忆
信号(MSK信号)和无记忆信号一起考虑,提出了一种改进的数字信...
现有数字信号自动调制识别方法大多只适用于无记忆信号,如PSK、ASK、FSK信号等。将有记忆
信号(MSK信号)和无记忆信号一起考虑,提出了一种改进的数字信号自动识别方法。该方法采用信号的瞬时统
计量作为特征参数,采用多层神经网络作为分类器。计算机仿真表明:当噪声采用高斯白噪声,并且信噪比大于
l5 dB时,识别率高于96% ;当信噪比不低于l0 dB时,识别率不低于90%。-Existing digital signal automatic modulation recognition methods are mostly applied only to memoryless signals, such as PSK, ASK, FSK signals. Will have a memory signal (MSK signal) and non-memory signal into consideration, an improved digital signal automatic identification method. This method is the use of the instantaneous signal statistics as a characteristic parameter, the use of multi-layer neural network as classifier. Computer simulation shows that: When the noise using Gaussian white noise, and signal to noise ratio greater than l5 dB, the recognition rate is higher than 96 when the signal to noise ratio not less than l0 dB, the recognition rate of not less than 90.
- 2023-09-07 22:55:03下载
- 积分:1