Spectrum File Viewer

Visualize spectrums as line charts with frequency axis and power axis.
The spectrum is read from a binary format file exported by the Satellite Spectrum Monitoring System
made by Glowlink Communications Technologies Inc.

Build the program

This program is written in Java language, and build by JDK 11+ with JavaFX.

1. Build by gradle
2. Build by IntelliJ IDEA

The build generates an executable module JAR file SpectrumFileViewer.jar.

Build requirements

• JDKs 11+ with OpenJFX are as follows:

  • ZuluFX
  • Liberica JDK full

• Build tools are as follows:

  • Gradle wrapper is included in this project.
  • IntelliJ IDEA (Community Edition)

by gradle

• Set PATH to JDK 11+ with OpenJFX javac
• Execute gradlew build in command line

by IntelliJ IDEA

• Open from IntelliJ IDEA
• [Build] menu > [Build Project]

Run the program in build environment

from a command line

D:\work\SpectrumFileViewer> java -p build\libs -m com.torutk.spectrum

from an IntelliJ IDEA

• [Run] menu > [Edit Configurations], add new configuration of gradle with task run.
• run the configuration above.

Operate the program

T.B.D.

Configure the program

logging

This program uses Java Util Logging.
Logging can be configured by a property file specified by the system property 'java.util.logging.config.file'.

• Java SE 11 Documentation > Core Libraries > Java Logging Overview

T.B.D.

UI customization

User interface can be configured by a cascade style sheet file named SpectrumFileView.css
placed in the parent of current directory, or it's sub directory within max depth of 3.

• JavaFX CSS Reference Guide - Release JavaFX 8

T.B.D.

Technical comments

T.B.D.

Other tools

Generate test spectrum data

This program has a command-line tool for generating test spectrum data file.
The generated spectrum data is based on a markov model.

usage

• under build environment, show usage

D:\work\SpectrumFileViewer> java -cp build\libs\SectrumFileViewer com.torutk.spectrum.data.RandomGenerator
Command line usage: -f <file> -p <probability> -u <upper shift> -l <lower shift>
        file: spectrum data file to be generated
        probability: of power increased (0.0 to 1.0) by markov model
        upper shift: amount of power increase in a step
        lower shift: amount of power decrease in a step

• for example, apply probability=0.65 upper shift=2 lower shift=4,

D:\work\SpectrumFileViewer> java -cp build\libs\SectrumFileViewer com.torutk.spectrum.data.RandomGenerator ^
 -f gen_p0.65_u2_l4.dat -p 0.65 -u 2 -l 4