Raw dataset for "A Bat-Inspired Sonar System Enables Noise-Robust Autonomous Drone Navigation".

Last updated: Mon Feb 2, 2026
Author: Yasufumi Yamada

This repository provides the raw experimental data associated with the article:

"A Bat-Inspired Sonar System Enables Noise-Robust Autonomous Drone Navigation"

submitted in Scientific Reports.

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Contents
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This repository includes the raw datasets used to generate Figures 1–5 in the main manuscript.

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Data format
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All raw signal files are provided in ".dat" or ".xlsx" formats.
".dat" files can be read as plain text by simply changing the file extension from ".dat" to ".txt".

Unless otherwise noted, all time-domain signals were recorded at a sampling frequency of 1 MHz.

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File naming convention
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Files with the prefix "chk_" correspond to acoustic signal data:

- chk_rxwv :
  Time-domain waveform of the received ultrasonic signal (microphone output).

- chk_txwv :
  Digital time-domain waveform of the transmitted ultrasonic emission signal.

- chk_env :
  Envelope of the cross-correlation signal between the transmitted and received signals.
  The envelope was extracted using a Hilbert transform.

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Additional processed data
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For some figures in the manuscript, time-domain signals were additionally rearranged
and stored in Excel files for visualization and plotting purposes.