About:

Program Summary:

Test new algorithms for shortening data for the telemetry system using a file to communicate between a transmitter and receiver program.

A MATLAB program generates data, which can be one or three-channel, smooth or noisy, and then plots the data in a graph and exports it into the Generated_Data.csv file.

Then the Transmitter C++ program takes the data from Generated_Data.csv, processes/compresses(*) it into ProcessedData.csv for reading, and writes it via protobuf into the Transmitted_Data.bin file, representing the data sent through radio.

A Receiver C++ program then takes the binary file data from Transmitted_Data.bin, decodes the compression, and exports that to ReceivedData.csv.

Finally, the MATLAB program can plot the final data from ReceivedData.csv, seeing how it holds up when compared to the original data in Generated_Data.csv.

Processing and Compression Modes: (*)

Default

Data that is collected is sent through

Offset

We record the offset, and send (data – offset) through

• Useful for when data hovers around a point

Derivative

We track the beginning value, and send the difference between the current and last data

• Useful for when the value itself is large, but collecting the derivative is small

Derivative Offset

Offset but for derivative

Set Up

https://www.msys2.org/ latest version msys2-x86_64-20230526 C:\msys64\ucrt64\bin\g++

• choco
• make
• protoc

It also may be a good idea to go into environment variables to link necessary paths.

For Bazel C++ compiler: https://stackoverflow.com/a/69962808 solution

Visual Studio

installed visual studio community edition use basel to build/run

cmake

cmake https://cmake.org/download/

Protobuf

git clone https://github.com/protocolbuffers/protobuf latest version v29.2

Abseil

git clone https://github.com/abseil/abseil-cpp latest version 20240722.0

Build

Compile and Build

Protobuf Files

bazel build packet_proto packet_cc_proto --verbose_failures

Transmitter

bazel build Transmitter --verbose_failures

Receiver

bazel build Receiver --verbose_failures

Clean Build

bazel clean

Run

Transmitter

.\bazel-bin\Transmitter.exe

Receiver

.\bazel-bin\Receiver.exe