Homework 2

Homework 2 - Before anything, open Matlab and run demo....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Before anything, open Matlab and run demo. Select communication blocksets and play with the PLL frequency synthesizer, GMSK and MSK demo systems. Then, build a Simulink model for a GMSK transmitter, simulate it, and compare against the block provided by Matlab. Consider a block diagram of one particular implementation of a GMSK transmitter as illustrated on the next page. The data generator generates a symbol of either 1 or -1 randomly every Td = 1/1MHz. That is each symbol is a square pulse of duration 1 μ s and amplitude of either 1 or -1. The data symbol is sampled every T = 1/100MHz = 10 ns. The sampling clock signal is the 100MHz reference frequency signal generated using a source block. For simplicity, realize the Gaussian filter in discrete-time with a sample period of T = 1/100MHz = 10 ns. A continuous-time Gaussian filter has unit impulse response given by: BT d product specifies the ratio of bandwidth of P(t ) to data rate, the modulation index h is defined as: For GSM, we are required to have: BT
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 02/01/2012.

Page1 / 2

Homework 2 - Before anything, open Matlab and run demo....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online