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33 Threads found on Simulink Qam
I have a simulink model (using Comm. Toolbox / DSP blocks) I have built that will do qam modulation just fine with pulse-shaping (using Root-Raised Cosine Filter). I'm trying to get a Baseband signal to RF for time-domain analysis for a RF PA. I need an LTE like signal with a high PAPR. So I am using an OFDM modulation on 16-qam coding. (...)
Hi All! A am a newbie in simulink & Matlab programming, but I need to implement qam64 modem in FPGA. The task is - do digital mixind I&Q channels in transmitter for sending it to DAC, then separate its in receiver after ADC. I found the HDL optimized model
Good Afternoon I'm building a 16 qam modulator demodulator. I am having a problem with the lookup table. I can not determine the value of the "vector of input value" and "data table". please can you give me the value for the both parameter in its demodulator? or can you send your 16 qam models to study.? sorry I am bad in english. and I can not a
Hi, I'm creating a digital communication system simulink model based on 64-qam. Currently the model needs to have the following block: SOURCE source block (I'm using a benoulli binary generator for this) TRANSMITTER: channel coding block (I'm using an FEC coder, consisting of the Convolutional Encoder) modulator (I'm using the Rectang
Hi, The simplest is to use simulink to generate WCDMA. Other options include specific Matlab, Octave code. Further there are also C++ codes. All depends on your budget and time limitations. All of them support offline as well as quasi-real-time analysis
What is the error you are getting? If you can upload your simulink file ( .mdl file) it would help me finding the error.
Hi. First of all, sorry for my english :D I'm trying to simulate a 64-qam modulation with LDPC coding and raised cosine transmit filter. The source block has a sample time of Ts=4.873148e-10, seed = 25 and outputs frames of dimension 32400 bits. Then the LDPC block codes with a coderate 1/2 and outputs frames of 64800 bits. The LDPC uses the pa
I am simulating the physical layer of WIMAX on simulink using a 16 qam only. There is problem with my module that appears as different states between the input and the output. I need help with the error in the simulation. the simulink model is attached. thanks for trying to help.
hello :) am designing a 16 qam modulator in both simulink and sys gen as well in simulink u can use a look up table LUT for the 2-to-4 level conversion, matlab help will provide u all the details u need and in the s2p conversion u can use a demux or the transpose block, or u can write ur own code the issues i encountered were in (...)
hello am doing a 16-qam modulator using simulink, i had a trouble in the lookup table ,used to generate amplitude levels, i dunnu if there is a standard or if i should just put any different values? and there is another problem with the demux! if someone can provide me with an .mdl file that will be great :) sorry for the poor English p.s
Our circuit for 16-qam MODEM with DPLL as its demodulator in simulink is showing a number of errors.Please help us with the circuit design.
Here is 4qam basic modem model made with Matlab 2009b simulink. You can easily add 4 more phases in the TX1D/RX2D lists. All of used ones are 30deg shifted now. The signal filtering is made using raised cosine filter, so You can remove them if not needed. If the model doesn't work (Altera DSP builder error or smth..), select all items, copy and pa
Hello! How can I synchronize acquired analog signals using Data Acquisition Toolbox in simulink? I'm doing a 16-qam modem and using the analog input and analog blocks output, using them as a receiver and transmitter with two computers, this is possible using the PC's sound card? Can someone help me? Thank's!
Hi, I'm creating a simulator of the physical layer of DVB-H, and I'm doing tests over a Rician multipath channel concatenated with an AWGN channel. My problem deals with the simulink's AWGN Channel block. One of the parameters I have to set if I want to generate the noise based on Eb/No is the "number of bits per symbol". I'm using 16qam, so
Hi everyone. I just designed a simple ofdm transmitter using simulink and I will like to know if anyone could help me know how I can determine the PAPR of my system. How I can cslculate it using simulink. Also in most ofdm systems they normalise the output after qam modulation by taking its conjugate and multiplying by a gain, why??? (...)
Hi friends!, I am involved with software defined radio project. hence i need to design the FPGA with all possible modulation esp for students study purpose. Now that i have seen many websites for a proper knowledge of how to design 16-qam or 32-qam, but i couldn't find such detailed diagram or atleast block diagram anywhere in the internet :cry: We
Hi, If you are using Matlab 2009a, you may find a complete simulink model for IEEE? 802.16-2004 OFDM PHY Link, Including Space-Time Best wishes Ahmed
Dear All, I would like to make a qam modulation Simulation using matlab. I want to know how can i enter the parameters of my simulation ( Frequency bandwith, carrier frequency, duty cycle) using the Communication Blockset of simulink. Any tutorals are apreciated, Thank you , Somatou
That topic explains how to register and download the simulink models. There is including model with 16 qam and CMA helpful for you, but not completely ready for the outcome of your problem.
See my simple simulink models: Key words: PSK, QPSK, qam, square root raised cosine filter, differential coding, feedback feedforward NDA decision-directed symbol timing carrier phase recovery synchronization, Gardner Muller and Mueller timing detector, Farrow interpolator, automatic g