PHPengchao He

From the observations

Field notes

Some useful observations never become a paper. I am keeping them here: what I tried, what I noticed, and what still needs a closer look.

Four research notesObservations · Methods · Open questions
01

Can AI read an animal’s footsteps?

A small experiment in reading waveform and spectrogram images with a vision-capable language model.

AI · Wildlife
October 2026
02

Following a pipeline alarm back to its source

An alarm gives us a place to start. Finding its physical cause takes another kind of work.

Field notes · Pipeline
May 2024
03

What are we comparing when we compare sensing cables?

Notes from Chengdu on coupling, source repeatability, and comparing measurements on the same basis.

Field notes · Fiber sensing
November 2023 experiment
04

Watching traffic through ground vibrations

What a few roadside seismometers taught us about passing vehicles and moving sources in Hainan.

Field notes · Traffic
Autumn 2023