Broad-band direct QPSK modulator/demodulator for wireless gigabit communicationQPSK调制器,解调器,正交相移键控,无线,宽带,双平衡混频器,本地振荡器,平衡转换器设计和一条宽带的测量结果指导照阶段移动调音(QPSK ) 调节的人和解调器在这份报纸被描述。电路用 1-m GaAs HBT 技术被制作。压制本地振荡器(LO ) ...
PURPOSE: To provide a QPSK modulating device whose circuit configuration can be simplified, and phase noise characteristic can be satisfactory by constituting a first local oscillator of a frequency synthesizer whose step size is small. ;CONSTITUTION: The synthesizer whose oscillation frequency can be ...
基于FPGA的QPSK调制解调器TheResearchofQPSKModulatorandDemodulatorBasedonFPGAl引言调制解调技术是通信系统的关键技术之一,现代通信系统要求通信距离远、通信容量大、传输质量好。而调制解调技术的好坏直接决定了整个系统的质量和效率。QPSK调制以其频带利用率高,在相同误比特率下所需的信噪比低,电路结构较简单,成为现代通信...
qpskModulator = comm.QPSKModulator('BitInput',true); qpskDemodulator = comm.QPSKDemodulator('BitOutput',true); Create an AWGN channel object and an error rate counter. channel = comm.AWGNChannel('EbNo',4,'BitsPerSymbol',2); errorRate = comm.ErrorRate; ...
Key words:QPSK;Modulator and demodulator; VHDL;Bit error rate1 1.1 数字调制技术,使在有限的带宽内的高速数据传输能够实现,虽然调制技术最开始的发展是起始于模拟信号调制技术的,但随着数字通信的发展,在可靠性方面,和模拟调制相比有了很大的提高。 数字调制信号,也被称为键控调制信号,其载波特征包括三个变量:频...
In this paper we present a system design that incorporates the functionalities of a digital modulator/demodulator along with controlling features such as symbol generation, filtering, modulation, demodulation, phase and timing recovery for QPSK and 16 QAM modulation schemes. It is concluded that for ...
Demonstration of a QPSK modulator / demodulator in the audio range (with the ability to run it through a real speaker / mic) audiopythonmodemfrom-scratchqpskqpsk-modulationqpsk-demodulation UpdatedOct 5, 2023 Python This repository contains the Wireless Networks-related project I've worked on. The...
THE REALIZE OF ALGORITHM AND EMULATION ABOUT MODULATOR AND DEMODULATOR ON QPSK IN SOFTWARE DEFINED READIO 姓专 名业 钟王 颖 浩进 通信工程 指导教员 2006 年 12 月 15 日 中国人民解放军体育学院毕业论文 软件无线电中 软件无线电中 QPSK 调制解调的算法与仿真 摘要:软件无线电是一种全新的无线...
1、学号:3042003116 中国人民解放军体育学院毕 业论 文软件无线电中QPSK调制解调的 算法与仿真THE REALIZE OF ALGORITHM AND EMULATION ABOUT MODULATOR AND DEMODULATOR ON QPSK IN SOFTWARE DEFINED READIO 姓名钟颖浩专业通信工程 指导教员 王进 2006年12 月15 日软件无线电中QPSK调制解调的算法与仿真摘 要:软件...
Generate VHDL, Verilog and SystemVerilog code for FPGA and ASIC designs using HDL Coder™. Version History Introduced before R2006a See Also Blocks QPSK Modulator Baseband | BPSK Demodulator Baseband | M-PSK Demodulator Baseband | DQPSK Demodulator Baseband Topics Digital Baseband ModulationWhy...