Description: This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
20,000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz –
16,000Hz). The test files used as information files were text files.
This goal was attained both in an incoherent scheme and in a coherent scheme.
Build under Matlab code, our modem uses OFDM (orthogonal frequency division
multiplexing) modulation, synchronization by LMS sequence, channel estimation (no
equalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of
2 or 4. To optimize the probability of error, these symbols were mapped using Gray
mapping.
Report Platform: |
Size: 559541 |
Author:buyop |
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Description: This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
20,000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz –
16,000Hz). The test files used as information files were text files.
This goal was attained both in an incoherent scheme and in a coherent scheme.
Build under Matlab code, our modem uses OFDM (orthogonal frequency division
multiplexing) modulation, synchronization by LMS sequence, channel estimation (no
equalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of
2 or 4. To optimize the probability of error, these symbols were mapped using Gray
mapping.
Report-This project aim was to build wireless software modem for data communicationbetween two computers using an acoustic interface in the voice frequency range (20Hz-20000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz-20000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz-16000Hz). The test files used as information files were text files.This goal was attained both in an incoherent scheme and in a coherent scheme.Build under Matlab code, our modem uses OFDM ( orthogonal frequency divisionmultiplexing) modulation, synchronization by LMS sequence, channel estimation (noequalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of2 or 4. To optimize the probability of error, these symbols were mapped using Graymapping.Report Platform: |
Size: 559104 |
Author: |
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Description: 扩展频谱技术有多种基本实现方式，本文主要介绍的是直接序列
扩频技术，特别针对二进制的PSK 调制解调技术，直接序列扩频系统的抗干
扰能力分析与直接序列扩频系统的同步方法，并进行了相关仿真分析-Spread spectrum technology has a wide range of basic ways, the introduction of this paper is a direct sequence spread spectrum technology, particularly for binary PSK modulation and demodulation techniques, direct sequence spread spectrum system, anti-jamming capability analysis and direct sequence spread spectrum system synchronization method and simulation analysis of the relevant Platform: |
Size: 236544 |
Author:luoluo |
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Description: 实现PSK调制和解调.包括载波同步 -PSK modulation and demodulation to achieve. Including the carrier synchronization Platform: |
Size: 66560 |
Author:lyd |
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Description: PSK信号的同步技术和方法，供信号解调用-PSK signal synchronization techniques and methods for the output signal called Platform: |
Size: 52224 |
Author:ning zhuang |
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Description: 西电毕业论文，文章详细的阐述了直扩原理并且进行了仿真。扩展频谱技术有多种基本实现方式，本文主要介绍的是直接序列
扩频技术，特别针对二进制的 PSK调制解调技术，直接序列扩频系统的抗干
扰能力分析与直接序列扩频系统的同步方法，并进行了相关仿真分析。-Spread spectrum communications has many basic
manners of implementation, this paper main introduces the direct
sequence spread spectrum technology. The technology of digital
signals’ modulation and demodulation, aiming at phase shift keying
analyzing the capacity of resistance to anti-jamming of direct
sequence spread spectrum system(DSSS) and the method of
synchronization in direct sequence spread spectrum system base on
the DSSS of the matlab’s simulation. Platform: |
Size: 235520 |
Author:caiyh |
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Description: In a series of papers in recent years new
structures for coherent M-PSK (M-ary Phase Shift Keying)
receivers were suggested. These include structures for carrier
phase detectors for the carrier PLL (Phase Lock Loop),
carrier PLL lock detectors, symbol timing error detectors,
symbol synchronization PLL lock detectors, carrier and
symbol PLL loop filters, and SNR (Signal to Noise Ratio)
estimators Platform: |
Size: 451584 |
Author:lala |
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Description: 本代码在OFDM系统中，用matlab实现8-PSK的调制、载波同步及其误码率计算-This code completes The modulation，carrier synchronization and the bit error rate test of 8-psk in an OFDM system . Platform: |
Size: 1024 |
Author:王远路 |
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Description: 本程序利用交替优化的方法实现了8-PSK信号在多普勒频移条件下的相位和定时双参数同步，不仅程序注释清晰，而且附上该程序实验报告，力求便于读者理解。(By optimizing alternately, this program realizes two parameters synchronization of phase and timing for 8-psk signal under Doppler frequency shifting channel. For better understanding of readers, I not only note the program clearly, but also provide the experimental report in the rar.) Platform: |
Size: 598016 |
Author:sima大侠 |
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Search - PSK synchronization