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GPRS
针对GPS干扰特性，对GPS系统进行猛特卡落干扰仿真(GPS interference characteristics for the GPS system Meng tecka charged interference simulation)
- 2008-05-26 09:59:10下载
- 积分：1
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一种基于高阶累积量的数字调相信号识别方法
说明： 对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)
- 2020-06-21 09:40:02下载
- 积分：1
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ADIBEAM
ADIBEAM
Abstract—the increase in navigation accuracy demanded by
EGNOS and Galileo and their future evolution encourages the
study and design of advance receiver architectures. In that
direction, the ADIBEAM project focuses on the design of high
accuracy ground stations, specifically GNSS Reference Stations, in
order to improve its robustness in front of multipath and
interference errors with the goal of achieving centimeter level
tracking accuracy. The adoption of antenna arrays and digital
beamforming at the ground reference station receivers is one of
the most promising approaches to cope with errors induced by
multipath and interference.
- 2012-01-23 23:20:55下载
- 积分：1
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Meng-mdp
Two different types of measurement matrices: predefined and random measurement matrices were studied and tested using MATLAB. The speech signal was reconstructed without losing important information in order to achieve an increase in the data rates. After multiple simulations
- 2012-12-18 12:52:19下载
- 积分：1
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Soft_ware-CRC
基于51单片机的CRC算法的C语言实现(文档内含源代码)(Based on 51 MCU CRC algorithm C language implementation (document containing the source code))
- 2009-10-31 11:15:24下载
- 积分：1
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colea444
This includes how to protect the speaker using matlab functions.
- 2010-03-03 09:21:36下载
- 积分：1
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(ebook-pdf)-Hacking-Cisco-Routers
(ebook pdf) Hacking Cisco Routers
- 2012-08-10 07:24:40下载
- 积分：1
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m序列发生器
说明： m序列发生器(简单型码序列发生器-----simple shift register generator)(m sequence generator (a simple code sequence generator----- simple shift Regi ster generator))
- 2020-12-03 22:29:25下载
- 积分：1
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DPSK_PCM_TDM
利用matlab simulink产生两路模拟语音信号，经过pcm编码、时分复用、DPSK调制经过同一个信道单向传输到对应的接收端。常用的三个模块 simulink、通信模块、信号处理模块。包括课程设计报告。(Using matlab simulink produce two analog voice signals through the pcm encoding, time division multiplexing, DPSK modulation over the same one-way transmission channel to a corresponding receiver. The three modules used simulink, communication module, a signal processing module. Including curriculum design report.)
- 2021-03-22 20:39:16下载
- 积分：1
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TD_XY2-100_R0703
数字化激光扫描振镜的接口定义及通信协议
XY2-100格式描述(XY2-100 format description of the interface definition and communication protocols digitized laser scanning galvanometer)
- 2013-03-28 13:06:29下载
- 积分：1
