QPSK modulator and QPSK demodulatorPURPOSE: 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.松田 克弥...
Create a QPSK modulator and demodulator pair that operate on bits. qpskModulator = comm.QPSKModulator('BitInput',true); qpskDemodulator = comm.QPSKDemodulator('BitOutput',true); Create an AWGN channel object and an error rate counter.
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; ...
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...
In a QPSK (360° in 90° steps) modulator (such as Mini-Circuits QMC-100), mixers behave as bi-phase modulators and operate in a saturated mode. Q. What are the most important specs of an I&Q modulator/demodulator and why? A: The most important specs of an I&Q modulator are the...
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...
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...
THE REALIZE OF ALGORITHM AND EMULATION ABOUT MODULATOR AND DEMODULATOR ON QPSK IN SOFTWARE DEFINED READIO Abstract:Software defined radio is a kind of new wireless communication system structure,the main principle was using the hardware as a basic platform of wireless communication,implement function of...
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 THEREALIZEOFALGORITHMANDEMULATIONABOUTMODULATORANDDEMODULATORONQPSKINSOFTWAREDEFINEDREADIO 姓名**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:软件无线电是一种全新的无线电通信体系结构,其...
TheResearchofQPSKModulatorandDemodulatorBasedonFPGA l 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 ...