Modulation

The transmitter is the combination of three distinct parts: the preamble, the data input and the modulation circuitry. The data is transmitted in blocks of 120 bits. An eight bit preamble with pattern 10101001 is attached in front of every packet to facilitate packet synchronization at the...

CHAPTER 1: FOURIER ANALYSIS1.1 CONTINUOUS-TIME FOURIER SERIES (CTFS)1.2 PROPERTIES OF CTFS 1.2.1 Time-Shifting Property 1.2.2 Frequency-Shifting Property 1.2.3 Modulation Property1.3 CONTINUOUS-TIME FOURIER TRANSFORM (CTFT)1.4 PROPERTIES OF CTFT 1.4.1 Linearity 1.4.2 Conjugate Symmetry 1.4.3 Real...

Very simple simulation of modulation BPSK in simulink.For more information, visit: http://www.matpic.com


Platforms: Matlab

The demonstration of n-PSK modulation and demodulation with my own speech, with different value of n and sampling frequency and carrier, n = 2, 4, 8, 16 ,32...


Platforms: Matlab

The model simulates three phase inverter with symmetric PWM modulation in which reference is sampled at the positive peak of the carrier and is held constant till the next positive peak of the carrier appears. The model demonstrates symmetric regular sampling at positive peaks of carrier and...


Platforms: Matlab

Calculate and plot BER curve against SNR for BPSK Modulation in Gaussian Environment.It calculates 100 errors to Calculate BER for every SNR value to ensure better approximation.I hope that this help students of signal processing and communications...


Platforms: Matlab

OFDM Signal generation and decoding using QPSK as the modulation technique. This type of OFDM is particularly useful for WiMAX and other Wireless and Multimedia Standards. QAM4 and QPSK is same modulation technique. Just run the Model and with different SNRs in the Channel Block observe the...


Platforms: Matlab

Modulate with matlab & simulinkDigital signal (QPSK,ASK,FSK,QAM...)Analog signal (AM,FM,PM)


Platforms: Matlab

LLR_DEMOD LLR Demodulator H = LLR_DEMOD_MEX(CONSTELLATION, MAPPING, METHOD) constructs a LLR demodulator object H for a given constellation, mapping and noise variance. The vectors CONSTELLATION and MAPPING are usually generated by using MATLAB Modem Modulation Modem. and contain the complex or...


Platforms: Matlab

The attached files are implementation of AM and FM Modulation.


Platforms: Matlab

Platform: Matlab 6.5The project provides a graphical user interface made d-deOC¦d-deOC¦in GUIDE.Consists of Delta Modulation and Adaptive Delta, which are modulation techniques which is one bit quantizer.once the modulation, use the NRZ line code, to conform to the comm channel., and...


Platforms: Matlab

This program calculates BER curve against SNR for QPSK Modulation in Gaussian Environment.It calculates 100 errors for for each SNR value before calculating BER. This gives a good approximation of BER.I hope this will help students alot.Please feel free to contact me should anyone has any queries.


Platforms: Matlab

Here are the files for a OFDM modulation. Where in I have used a BPSK modulation and showed the decrease in BER with OFDM.This project was done as a course project under the Guidance of Dr. Dayalan Kasilingam, Umass Dartmouth.


Platforms: Matlab

The comb pilot aided channel estimation in ofdm modulation is considered. The power of pilot subchannels is under the control.The data experience frequency selective channel then the AWGN noise is added to make the situation worse. The bit error rate is ploted versus SNR.


Platforms: Matlab

A WiMAX simulation where you can define the number of OFDM symbols to simulate, type of channel (SUI 1-6 or AWGN Channel), lots of BW and four kind of cyclic prefix. You can choose 4 different modulation as you can choose on IEEE 802.16dThere is no Simulink. Everything is code.I simulate the IEEE...


Platforms: Matlab

This Demo gives the user sufficient freedom to vary the values of modulating and carrier signal amplitude and frequency.Accordingly it displays the time domain waveforms of both the signals. i.e. modulating and carrier signal.It also provides means of evaluating AM Envelope and the corresponding...


Platforms: Matlab

A single program which plot Spectrum of AM modulation.For more information, visit: http://www.matpic.com


Platforms: Matlab

The Code describes the way to modulate or demodulate a signal shift in its phase.


Platforms: Matlab

NOTE: Though I have uploaded this toolbox, I have no contribution in this work. Programming and research in this field has been done by students given belowKapil Gulati, Marcel Nassar, Aditya Chopra, Marcus DeYoung, Arvind Sujeeth, and Navid Aghasadeghi.It is composed of various functions used to...


Platforms: Matlab

This script simulates the Binary Amplitude Shift keying. Since BASK is a digital modulation scheme, you can modulate as many bits as you want. however, I have only simulated it for 5 bits, so that the results are visible.This is code for BASK only, means it can only modulated two digital states.I...


Platforms: Matlab