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Description: 此為qpsk的範例，將一訊號分解成I及Q part，再將訊號I及Q部分相加得到輸出
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Size: 1973 |
Author: v9469 |
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Description: QPSK Transmitter and I/Q Correlator Receiver is based on the technique of queing the information in a bit stream and on the receving end using FFT and some additive filters, as the addition of noise is made to infuse the need of a filter. Necessarily a Baseband filter is used. Modulation acheived at the receiving end.
-QPSK Transmitter and I / Q Correlator Recei ver is based on the technique of the infor queing mation in a bit stream and on the receving end usi ng FFT and some additive filters, as the addition of noise is made to infuse the nee d of a filter. Necessarily a Baseband filter is u sed. Modulation achieved at the receiving end.
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Size: 4783 |
Author: xiaoying |
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Description: 此為qpsk的範例，將一訊號分解成I及Q part，再將訊號I及Q部分相加得到輸出-This is an example of QPSK, a signal is decomposed into I and Q part, then I and Q signals to be part of the sum output
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Size: 2048 |
Author: v9469 |
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Description: M-file for simulating a QPSK transmitter by modulating with a pseudo random bit stream. A serial to parallel conversion of the pseudo random bit stream is performed with mapping of two bits per symbol. A cosine and sine carrier is configured and the I and Q symbols modulate these carriers. The I and Q carriers are combined and time and frequency domain plots are provided showing key waveforms at various positions in the QPSK transmitter.
-M-file for simulating a QPSK transmitter b y modulating with a pseudo random bit stream. A s erial to parallel conversion of the pseudo rand om bit stream is performed with mapping of two bi ts per symbol. A cosine and sine carrier is CBMs gured and the I and Q symbols Modulate these CARR IERS. The I and Q carriers are combined and a time nd frequency domain plots are provided showing key waveforms at various positions in the QPSK t ransmitter.
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Size: 2048 |
Author: xiaoying |
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Description: M-file for simulating a QPSK transmitter by modulating with a pseudo random bit stream. A serial to parallel conversion of the pseudo random bit stream is performed with mapping of two bits per symbol. A cosine and sine carrier is configured and the I and Q symbols modulate these carriers. The I and Q carriers are combined and time and frequency domain plots are provided showing key waveforms at various positions in the QPSK transmitter.
-M-file for simulating a QPSK transmitter b y modulating with a pseudo random bit stream. A s erial to parallel conversion of the pseudo rand om bit stream is performed with mapping of two bi ts per symbol. A cosine and sine carrier is CBMs gured and the I and Q symbols Modulate these CARR IERS. The I and Q carriers are combined and a time nd frequency domain plots are provided showing key waveforms at various positions in the QPSK t ransmitter.
Platform: |
Size: 28672 |
Author: xiaoying |
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Description: QPSK Transmitter and I/Q Correlator Receiver is based on the technique of queing the information in a bit stream and on the receving end using FFT and some additive filters, as the addition of noise is made to infuse the need of a filter. Necessarily a Baseband filter is used. Modulation acheived at the receiving end.
-QPSK Transmitter and I/Q Correlator Recei ver is based on the technique of the infor queing mation in a bit stream and on the receving end usi ng FFT and some additive filters, as the addition of noise is made to infuse the nee d of a filter. Necessarily a Baseband filter is u sed. Modulation achieved at the receiving end.
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Size: 4096 |
Author: xiaoying |
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Description: BPSK.QPSK.16QAM.64QAM调制解调-BPSK.QPSK.16QAM.64QAM modem
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Size: 4096 |
Author: 周郭楠 |
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Description: QPSK调制仿真程序，使用I和Q两路产生调制信号，适用于初学者。-QPSK modulation simulation program, the use of I and Q modulated signals generated two for beginners.
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Size: 1024 |
Author: wwei |
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Description: matlab仿真程序，产生QPSK调制的信号，严格按照QPSK的调制步骤分I路Q路产生信号，最后两路相加，产生已调信号，调制信号随机产生，载波信号是余弦信号。-matlab simulation program to produce the QPSK modulation signal, in strict accordance with the QPSK modulation of the sub-step road Q road I have a signal, the sum of the last two, have been transferred signal, randomly generated modulated signal, carrier signal is a cosine signal.
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Size: 3072 |
Author: duanaobest |
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Description: 模拟QPSK发射和接受的一个程序，带I-Q修正，对于理解QPSK有很好的作用-QPSK Transmitter and I-Q Correlation Receiver
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Size: 4096 |
Author: hh |
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Description: soft Demapping QPSK : LLR computation using Euclidian distance approach, Parallel-to-Serial converter : needs I and Q components of QPSK symbols at the input
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Size: 1024 |
Author: IMM |
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Description: corrected version of Demapping QPSK : LLR computation using Euclidian distance approach, Parallel-to-Serial converter, needs I and Q componets of QPSK symbols at the input
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Size: 1024 |
Author: IMM |
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Description: 转载leiqui的内容，QPSK仿真内容，附件模型是根据书上的原理图进行组织，每一模块都呈现。例如I/Q分路，调制，解调，判决等。 -Reproduced leiqui content, QPSK simulation content, attachment model is based on the book is organized on the diagram, each module are presented. Such as I/Q splitter, modulation, demodulation, judgments.
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Size: 13312 |
Author: 李四 |
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Description: the OFDM PHY is adaptive therefore it supports
multiple schemes BPSK, QPSK, 16-QAM and 64-QAM for
data carriers’ modulation. The constellation diagrams are
gray mapped and shows the magnitudes I and Q (In-phase
and Quadrature) components of each incoming bit(s)
combination along with their normalization factor C to
calculate magnitude of each model
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Size: 1497088 |
Author: san |
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Description: This paper considers frequency-domain receiver
design for OQPSK signals (Offset Quaternary Phase
Shift Keying). It is shown that conventional QPSK receivers
are not suitable to OQPSK schemes since they
lead to significant interference between in-phase (I) and
quadrature (Q) components. To overcome this problem
we propose several linear receivers where there is no
I-Q interference. Our receivers are suitable to OQPSK
schemes, significantly outperforming frequency-domain receivers
designed for QPSK modulations.
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Size: 113664 |
Author: 吕立圣 |
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Description: 本程序，包含QPSK，OQPSK的产生过程，I、Q领路信号抽取，他们的频谱，包络情况，经过带通滤波器后的变化，经过非线性放大器后的频谱变化等。是一个很好的学习例程！-This procedure, including QPSK, OQPSK production process, I, Q signal extraction lead the way, their spectrum envelope case, after band-pass filter after the change, through non-linear changes in the spectrum after the amplifier. Is a good learning routines!
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Size: 2048 |
Author: 苏润川 |
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Description: （1） 分析QPSK调制、解调原理，并画出其系统框图；
（2） 产生等概率且相互独立的二进制序列，作为待传输的信号，并画出其波形；
（3） 进行8PSK调制，分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形；
（4） 产生均值为0，方差为1的加性高斯随机噪声，画出其时域波形及频谱；
（5） 将加性高斯随机噪声作为传输信道的干扰，画出接收端信号的时域图；
（6） 进行8PSK解调，输出解码序列，画出解调后信号波形；
（7） 计算系统信噪比、传输误码率。-(1) analysis of QPSK modulation, demodulation, and draw the system block diagram (2) have equal probability and independent binary sequence as a signal to be transmitted, and draw the waveform and (3) 8PSK modulation, Draw the I, Q two way signal multiplier waveform and 8PSK modulation waveform (4) to produce zero mean and variance of an additive Gaussian random noise, to draw the time-domain waveform and spectrum ( 5) the additive Gaussian random noise interference as a transmission channel, to draw the time-domain diagram of the receiver signal (6) 8PSK demodulator output decoding sequence, draw the demodulation of the signal waveform computing system (7) signal-to-noise ratio, the transmission bit error rate.
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Size: 2048 |
Author: 张涛 |
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Description: 实现QPSK调制，采用两种方法相位选择法和I/Q两路相加法-QPSK modulation using two phase selection method and I/Q two-way additive method
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Size: 1024 |
Author: hepanfeng |
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Description: 基于EDA软件平台上，用硬件描述语言verilog设计完成分频器、计数器、串行移位输出器、伪码发生器、QPSK I/Q调制器、QPSK I/Q解调器，基于选项法中频调制器，再将各个模块综合起来组成一个完整系统；并用quartusII软件对其进行仿真验证。-EDA software platform based on the hardware description language verilog design complete shift of the frequency divider, timer, serial output, pseudo-code generator, the QPSK the I/Q modulator, QPSK I/Q demodulator based option law IF modulator, and then the individual modules together to form a complete system simulation and its quartusII software.
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Size: 1905664 |
Author: 赵旋 |
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Description: QPSK信号生成 matlab编写的程序 并且分为i路 与q路进行-QPSK signal
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Size: 4096 |
Author: 贝贝 |
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