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: 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. Platform: |
Size: 4096 |
Author:xiaoying |
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Description: QPSK发送机，信号源为随机二进制序列，经串并变换后，转换成双极性信号发送-QPSK transmitter, the signal source for random binary sequence, series and transform, change the polarity signal sent in pairs Platform: |
Size: 10240 |
Author:lk |
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Description: Simulation of a transmitter implementingthe OFDM transmission chain with QPSK modulation
on each sub-carrier-Simulation of a transmitter implementing the OFDM transmission chain with QPSK modulati on on each sub-carrier Platform: |
Size: 2048 |
Author:于冰 |
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Description: 这是一个QPSK的程序，用matlab编程，软件无线电发射机仿真时可以作为参考-This is a QPSK procedures, using matlab programming, software simulation of a radio transmitter can be used as reference Platform: |
Size: 1024 |
Author:叶丽芳 |
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Description: Simulation of a transmitter implementing the OFDM transmission chain with QPSK modulation on each sub-carrier Platform: |
Size: 2048 |
Author:和三 |
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Description: QPSK modulation system with recover loops-This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols. Platform: |
Size: 15360 |
Author:ranbowang |
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Description: MATLAB program for OFDM generation and reception
This is a simple MCM communications system. The code is pretty self-explanatory. Here I have not used the cyclic prefix.
Transmitter End:
1. Generate random serial data with M symbols (RANDSRC will do this)
2. Perform modulation (4-PSK = QPSK for now)
3. Serial to parallel
4. IFFT
5. Parallel to serial
Receiver end
Just opposite of transmitter end.
Platform: |
Size: 1024 |
Author:snapaj |
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Description: 两发射机一接收机在瑞丽信道下的QPSK调制仿真程序-Two channel transmitter for a receiver in Ruili Xin simulation program under QPSK modulation Platform: |
Size: 1024 |
Author:李先生 |
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Description: 次工程包含QPSK的所有东西，包括各种同步和编码，十分强大(The sub project contains all the things of QPSK, including all kinds of synchronization and coding, very powerful.) Platform: |
Size: 4096 |
Author:呆_呆_ |
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Description: 该工程实现对单载波系统QPSK的频偏估计算法。调相信号在接收机相干解调时需要同频同相的参考载波，而发射机和接收机之间往往存在频率偏差，为了消除这种误差，必须在软件层面实现。使用了QPSK四相调制的信号特点进行载波频偏估计，经验证，效果较好。(This project implements frequency offset estimation algorithm for single carrier system QPSK. The phase modulation signal needs the same frequency reference carrier in the coherent demodulation of the receiver, and the frequency deviation often exists between the transmitter and the receiver. In order to eliminate this error, it must be implemented on the software level. The carrier frequency offset estimation is carried out by using the signal characteristics of QPSK four phase modulation.) Platform: |
Size: 2048 |
Author:呆_呆 |
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Search - transmitter QPSK