Freeware Listing: Modulation
- Amplitude Modulation
- License: Freeware

The codes in two files generate time and frequency domain representation of three basic types of amplitude modulation i>Double SideBand Amplitude Modulation (Full Carrier) (DSBAM) ii>Double SideBand Suppressed Carrier (DSBSC) iii>Single SideBand (SSB) The message signals used are combination of sinusoids of different frequency. Most authors use single tone modulation so give the initial concepts, but rarely do any one of them go beyond than. I believe the multi tone modulation representation will help in visualizing how AM will work in case of voice modulation, which certainly is composed of number of harmonics.
- Publisher: Saurav R Tuladhar
- Date: 12-05-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Frequency Modulation and Demodulation
- License: Freeware

The Files includ;The Filecy modulation and demodulation technique.
- Publisher: Farhat Masood
- Date: 24-05-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- BPSK MODULATION
- License: Freeware

Very simple simulation of modulation BPSK in simulink. For more information, visit: http://www.matpic.com.
- Publisher: Diego Orlando Barragan Guerrero
- Date: 04-03-2013
- Size: 133 KB
- Platform: Matlab, Scripts
- Gmsk modulation
- License: Freeware

gmsk modulation of numerical data generated by a random source, the output of the modulator give two signals, only for demonstration, the first is gmsk signal and the other is gaussien frequency pulse shape.
- Publisher: lilo lilo
- Date: 11-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Modulation Demodulation PAM
- License: Freeware

This model is an 8-ary modulator/demodulator based on Pulse Amplitude Modulation (PAM). You can change the Eb/N0 parameter in the "AWGN Channel" block to see the effect of the channel noise on the demodulated signal while the simulation is running. The input is a sinusoid with a frequency of 1 Hz..
- Publisher: Ali Behboodian
- Date: 12-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Bluetooth modulation and frequency hopping
- License: Freeware

Simulink model of a simple Bluetooth wireless data link. Includes error correction, GFSK modulation, frequency hopping and a 100MHz channel. NOTE: A version of this model which works with the current release of MATLAB and Simulink is shipped with the Communications Blockset..
- Publisher: Stuart McGarrity
- Date: 25-05-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Quadrature Amplitude Modulation (QAM)
- License: Freeware

Quadrature Amplitude Modulation (QAM) is demonstrated in matlab using graphical user interface. To use it open QAM figure file.
- Publisher: imran shezad
- Date: 21-03-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Double Sideband Amplitude Modulation
- License: Freeware

Double Sideband Amplitude Modulation is a basic technique http://en.wikipedia.org/wiki/Amplitude_modulation#Example:_double-sideband_AM ://http://en.wikipedia.org/wiki/Amplit...le-sideband_AM.
- Publisher: Harsha Vardhan
- Date: 25-06-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- AM & FM modulation
- License: Freeware

The attached files are implementation of AM and FM Modulation..
- Publisher: Jawad Khalid
- Date: 27-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- n-PSK modulation and demodulation
- License: Freeware

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....
- Publisher: Santosh Shah
- Date: 20-02-2013
- Size: 276 KB
- Platform: Matlab, Scripts
- ASK, OOK, FSK, BPSK, QPSK, 8PSK modulation
- License: Freeware

ASK, OOK, FSK, BPSK, QPSK, 8PSK modulation. This f;br />in several functions for digital modulation simulation..
- Publisher: Diego Barragan Guerrero
- Date: 27-03-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Sinusoidal Asymmetric PWM modulation based three phase inverter
- License: Freeware

The model simulates asymmetric modulation which can be observed at second scope by zooming the waveform on time axis. In this modulation technique the reference signal is sampled at positive as well as at negative peak of the carrier and held constant between two sampled points. Three phase inverter was used to demonstrate the effect of asymmetric modulation on the output and Fourier analysis is presented using GUI block..
- Publisher: Syed Abdul Rahman Kashif
- Date: 08-03-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Modulation Emulation
- License: Freeware

Modulation Emulation is a lightweight and easy to use application that can plot modulation signals, based on the user-defined parameters.
You can set the amplitude, the frequency, as well as the scale dimensions. The program can modulate carrier and other types of signal.
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- Publisher: Roger Cores
- Date:
- Platform: WinOther
- MRingModulator x64
- License: Freeware

MRingModulator x64 performs classic ring-modulation effects using two oscillators. A clean interface gives easy access to more advanced controls like our adjustable phase difference and shape features. FEATURES: · Continuously adjustable oscillator shape - every oscillator in our plugins is defined by a mix of predefined oscillator shapes, custom waveforms edited using our MeldaProduction Envelope System (MES), step-sequencer and several methods for algorithmic postprocessing. It is the most advanced approach for defining oscillator shapes. · Up to 8 channels surround processing - our plugins can handle not only mono and stereo signals, but also up to 8 channels of surround audio, making them ideal for audio production for movies, games etc.
- Publisher: MeldaProduction
- Date: 05-09-2012
- Size: 17203 KB
- Platform: WinOther
- MRingModulator
- License: Freeware

MRingModulator performs classic ring-modulation effects using two oscillators. A clean interface gives easy access to more advanced controls like our adjustable phase difference and shape features. FEATURES: · Continuously adjustable oscillator shape - every oscillator in our plugins is defined by a mix of predefined oscillator shapes, custom waveforms edited using our MeldaProduction Envelope System (MES), step-sequencer and several methods for algorithmic postprocessing. It is the most advanced approach for defining oscillator shapes. · Up to 8 channels surround processing - our plugins can handle not only mono and stereo signals, but also up to 8 channels of surround audio, making them ideal for audio production for movies, games etc.
- Publisher: MeldaProduction
- Date: 26-11-2012
- Size: 17203 KB
- Platform: WinOther
- BER Curve for QPSK in Rayleigh Channel
- License: Freeware

This script simulates QPSK or 4-QAM modulation scheme in Rayleigh channel and compares it to theoretical limits. QPSK gives 3dB SNR degradation when compared to BPSK but twice as much throughput. I hope this will be helpful for students of wireless communication..
- Publisher: Shah Gul Khan
- Date: 03-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Delta Modulation and Adaptive Delta Modulation
- License: Freeware

Platform: Matlab 6.5 The project provides a graphical user interface made 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 receiver in the performance evaluation of communication system from constellation diagrams, Bitrate, and Eye pattern. toolbox used: communication, GUIDE, Image..
- Publisher: Julio Emmanuel Rodriguez Selva
- Date: 20-04-2013
- Size: 584 KB
- Platform: Matlab, Scripts
- OFDM with QPSK
- License: Freeware

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 performance of the OFDM. Please leave your feedback for the model so that we can improve it..
- Publisher: Muhammad Nadeem Khan
- Date: 10-03-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- OFDM with 64-QAM
- License: Freeware

OFDM Signal generation and decoding using 64-QAM as the modulation technique. This type of OFDM is particularly useful for WiMAX and other Wireless and Multimedia Standards. Just run the Model and with different SNRs in the AWGN Channel Block observe the performance of the OFDM. Please leave your feedback for the model so that we can improve it..
- Publisher: Muhammad Nadeem Khan
- Date: 03-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- BER Curve for QPSK in Gaussian Environment
- License: Freeware

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..
- Publisher: Shah Gul Khan
- Date: 10-01-2013
- Size: 10 KB
- Platform: Matlab, Scripts
Modulation: Freeware | All








