The complete matlab code implementation download link is provided at the end of the article
introduce
This article will be divided into two parts. In the first part, a pulse-modulated signal encoding binary data is generated using TR's modeled UWB signal generator. This second part involves modeling the receiver that receives the signal generated in the first part to extract and display the information. The time plot and frequency response of each signal plotted the phases. Practice environment using MATLAB integrated development.
Part 1: Generation and Modulation of TR-UWB Signal
Introduction
This practice involves generating and modulating a TR-UWB signal using MATLAB. Ultra-wideband signals are a class of signal signals that have a wide band rather than a narrow band in the frequency spectrum, with pulses of temporal width that generate it. In this practice, a MATLAB program is developed to generate a baseband TR-UWB signal, which we use to encode the amplitude of some binary data signals. For a "1", the pulse has the same amplitude as the reference pulse, and for a "0", the pulse's amplitude is one-third that of the reference pulse. The pulse follows a Scholtz single cycle, the pulse width Tp = 2ns; the time delay between the reference pulse and the information pulse TD = 50 ns: and the time delay between the reference pulse TS = 300ns as shown in the figure below
For practical work, we generate a signal with the binary sequence [1 0110 10]. We proceed to modulate the baseband signal with a cosine carrier at frequency fp = 4.492GHz.
1.2 Purpose
1. Learn how to use MATLAB program to generate special TR-UWB baseband signal based on Scholtz's Monocycle.
2. Modulate the baseband signal.
3. Plot and admire the time signal before and after the signal and after spectrum modulation.
1.3 Actual procedure
1.3.1 Generating TR-UWB baseband
a) The declared variables include TD, TS, tp
b) By executing