This lesson

    Course

    Course Information

    • Syllabus
    • Materials

    Module 1 — Foundations of Detection & Link Budgets

    • Module 1 overview
    • L1 — Course Introduction
    • L2 — Noise Figure and Link Budget
    • L3 — Signal Space

    Module 2 — SDR & GNU Radio Foundations

    • Module 2 overview
    • L4 — SDR Introduction
    • L5 — GNU Radio Introduction
    • L5 Lab — First Flowgraphs

    Module 3 — Analog Modulation

    • Module 3 overview
    • L6 — AM Simulation
    • L6 Lab — AM Simulation
    • L7 — AM and FM Receivers
    • L7 Lab — AM and FM Receivers

    Module 4 — Digital Modulation

    • Module 4 overview
    • L8 — FSK
    • L8 Lab — FSK
    • L9 — PAM Theory
    • L10 — ASCII over PAM
    • L10 Lab — PAM Link

    Module 5 — Custom Blocks & Midterm

    • Module 5 overview
    • L11 — Out-of-Tree Modules and Custom Blocks
    • L11 Lab — Custom Block
    • Midterm — Fox Hunt and CTF

    Module 6 — Waveform Applications & RF Reverse Engineering

    • Module 6 overview
    • L12 — CW
    • L12 Lab — CW
    • L13 — DTMF
    • L13 Lab — DTMF
    • L14 — HD Radio
    • L14 Lab — HD Radio
    • L15 — mPSK
    • L15 Lab — mPSK
    • L16 — Frequency Hopping
    • L16 Lab — Frequency Hopping
    • L17 — RF Reverse Engineering
    • L17 Lab — RF Reverse Engineering
    • L18 — ADS-B
    • L19 — AIS
    • L18–L19 Lab — ADS-B and AIS

    Module 7 — Final Project

    • Module 7 overview
    • L20 — QAM and OFDM
    • Final Project
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    Module 1 — Foundations of Detection & Link Budgets#

    ECE 448 · Module 01

    Foundations of Detection & Link Budgets

    Will the link close? The few numbers you need before hardware touches a signal.

    Lessons 1–3 · Software Defined Radios · Dr. Neil Rogers

    Where This Module Goes

    Noise figure, the link budget, and signal space: just enough to tell whether a link will work and to read a constellation.

    Learning Objectives

    1. I can define noise figure and explain how each stage of a receiver chain, the first above all, sets the system's noise performance.
    2. I can compute a link budget for a specified geometry, transmitter, and antenna configuration, and compare it with the signal an SDR shows.
    3. I can describe signal-space concepts (basis functions, constellations, decision regions) and apply them to a digital modulation scheme.

    In This Module

    Lesson · L1

    Course Introduction

    What an SDR is, the signals around you, and how the course is run.

     Lesson · L2

    Noise Figure and Link Budget

    Noise figure through a receiver chain, and the link budget that says whether a signal will arrive. Objectives 1.1, 1.2.

     Lesson · L3

    Signal Space

    Basis functions, constellations, and decision regions: the picture every digital receiver works from. Objective 1.3.