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PCM
说明: 在实际的调谐解调电路中,采用的是非相干载波解调,本振信号与发射端的载波信号存在频率偏差和相位抖动,因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决,得到的数字信号也不是原来发射端的调制信号,误差的积累将导致抽样判决后的误码率增大,因此数字QPSK解调电路要对载波误差进行补偿,减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)
- 2019-01-30 20:16:08下载
- 积分:1
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综合波束形成
说明: 该文件包含对宽带波束形成与窄带波束形成的一些实现方法(This file contains some implementation methods of wideband beamforming and narrowband beamforming)
- 2020-07-26 17:48:40下载
- 积分:1
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Polar Codes in MATLAB - v2
极化码编译码在matlab下的仿真 误码性能分析(Analysis of Error Performance of Polarization Coding and Decoding under Matlab)
- 2019-05-10 18:43:07下载
- 积分:1
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4ASK
说明: 此代码为4ASK发送调制与接收解调的通信系统,为主要代码(Communication system of 4ask transmitting modulation and receiving demodulation)
- 2021-01-09 21:02:09下载
- 积分:1
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IR-UWB
超宽带无线通信仿真平台,基于IEEE标准制定,IR-UWB(Ultra-wideband wireless communications simulation platform, based on IEEE standards, IR-UWB)
- 2010-11-10 14:59:29下载
- 积分:1
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feng_uj11
音频信号通过LM386放大,包括四元数的各种计算,D-S证据理论数据融合。( LM386 audio signal amplification, Including quaternion various calculations, D-S evidence theory data fusion.)
- 2017-04-25 17:47:26下载
- 积分:1
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1
说明: very important dtmf project
- 2011-07-06 14:42:13下载
- 积分:1
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8921318BER_MRC_STBC
说明: 用于MRC的matlab编程仿真,自己觉得好的资料(MISO-NOMA using TAS and MRC)
- 2021-03-06 20:15:48下载
- 积分:1
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instructions
Photovoltaic systems, solar thermal systems based on knowledge training(PVSystem)
- 2010-10-21 09:24:46下载
- 积分:1
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Interview-Collection
收集了华为五轮面试的经验,还有中兴通信的面试宝典,非常不错的资料 (Huawei five interviews to collect experience, and ZTE interview book, very good information)
- 2011-06-18 14:30:48下载
- 积分:1