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QDPSK通信系统
说明: QPSK调制仿真与分析,使用matlab仿真实现QPSK相干调制与解调,通过AWGN信道,画出误比特率曲线(Generate digital baseband signal, add AWGN Gaussian white noise to transmit in the channel, detect the original baseband signal, draw theoretical and simulation error rate curve, QPSK modulation simulation and analysis, use matlab simulation to realize QPSK coherent modulation and demodulation, draw error rate curve through AWGN channel)
- 2021-01-09 21:55:49下载
- 积分:1
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847659
java源码,主页制作百宝箱,收集了几十多种主页制作常用的JAVA和javascript特效(Java source code, homepage making kit, collected dozens of various homepage making commonly used Java and javascript effects)
- 2017-04-17 01:17:59下载
- 积分:1
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bandpassfilter
HFSS 带通滤波器 微带结构 (HFSS microstrip structure band-pass filter)
- 2009-12-19 09:41:35下载
- 积分:1
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MIMOOFDMPrecoding
TD-LTE下行传输采用了MIMO-OFDM的物理层构架,通过最多4个发射天线并行传输多个(最多4个)数据流,能够有效地提高峰值传输速率。LTE的物理层处理过程中,预编码是其核心功能模块,物理下行共享信道的几种主要传输模式都是通过预编码实现的。(The td-scdma LTE downlink transmission adopted MIMO - OFDM frame, the physical transmission antennas parallel transmission by up to four more (up to 4) data flow, can effectively improve the peak transmission rate.LTE) in the process of the physical layer of precoding is its core function module, several kinds of main physical downlink Shared channel transmission model is achieved by precoding.)
- 2018-02-03 16:36:53下载
- 积分:1
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ch03
杨建国老师的通讯原理课件,第三章模拟信号的调制与解调,主要讲述信号产生与调制,射频特性,解调,MSK、GMSK、PSK、QPSK、BPSK、QAM等原理(Yang Jianguo teacher communication principles of courseware, the third chapter of the analog signal modulation and demodulation, and focuses on the signal generation and modulation, the RF characteristics, demodulation, MSK, GMSK, PSK, QPSK, as BPSK, QAM and other principles of)
- 2012-06-12 10:45:39下载
- 积分:1
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mod_demod
三种模拟调制与解调的算法,三种模拟调制为:AM,FM,SSB(Three types of analog modulation and demodulation algorithms, three types of analog modulation for: AM, FM, SSB)
- 2003-01-12 14:07:01下载
- 积分:1
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GFSK
GFSK调制通信系统误码率统计,非常有借鉴价值(GFSK modulation communication system bit error rate statistics, the very reference value)
- 2011-05-04 17:22:30下载
- 积分:1
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RIL_whitepaper_MS_Intrinsyc_June2004
微软RIL白皮书。介绍了微软RIL(Radio Interface Layer)的架构和开发所必须具备的知识,包括简介、RIL Modem接口、开发环境、平台实现、测试,以及相关信息(Microsoft White Paper RIL. It introduced Microsoft RIL (Radio Interface Layer) architecture and the necessary knowledge for developer, including the Introduction, RIL Modem interface, development environment, platform, testing, and related information)
- 2009-07-12 12:09:38下载
- 积分:1
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NVP6134B AHD RX 芯片支持300MP摄像机 NVP6134B_Product_Brief
NVP6134B AHD RX 芯片支持300MP摄像机(The NVP6134B AHD RX chip supports 300MP cameras)
- 2020-12-18 10:39:10下载
- 积分:1
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6
说明: 6. 在三条径的瑞利信道中,对于OFDM:
(1) 请设计一种具体的导引辅助的信道估计方法,用Simulink进行仿真。画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。
(2) 设频率已同步,请设计OFDM一种具体的采用循环前缀进行时间同步方法,用Simulink进行仿真,画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已同步,请设计OFDM一种具体的采用循环前缀进行频率同步方法,用Simulink进行仿真,画出比特信噪比与频率同步误差的关系曲线。(6. In the three-path Rayleigh channel, for OFDM:
(1) please design a specific navigation-assisted channel estimation method and use Simulink for simulation.The relation curves of bit signal-noise ratio and channel estimation mean square error and the relation curves of bit signal-noise ratio and bit error rate are drawn.
(2) if the frequency has been synchronized, please design a specific method of time synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit-snr and acquisition probability.
(3) if time has been synchronized, please design a specific method of frequency synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit signal-to-noise ratio and frequency synchronization error.)
- 2021-01-23 11:58:44下载
- 积分:1