---
title: "Post-Processed Kinematic (PPK)"
slug: "post-processed-kinematic-ppk"
status: "new"
updated: 2026-08-24T05:23:40Z
published: 2026-08-24T05:27:12Z
canonical: "knowledge.emesent.com/post-processed-kinematic-ppk"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://knowledge.emesent.com/articles/llms.txt
> Use this file to discover all available pages before exploring further.

# Post-Processed Kinematic (PPK)

PPK (Post-Processing Kinematic) is a GNSS correction method that georeferences scan data after capture rather than in real time. Both the rover and a base station record raw satellite observations during the mission. After the mission, these recordings are processed together in Emlid Studio to produce a corrected trajectory file, which Aura applies during scan processing.

PPK is suitable when a live correction link is unavailable or unreliable. Common scenarios include sites with no cell coverage, long baselines from a GNSS correction network, and environments where radio links between base and rover are interrupted. Emesent recommends enabling RINEX logging on the rover as standard practice, even when RTK is expected to work, so that the recorded data is available as a fallback if RTK quality is compromised.

## Before starting

Read [Understanding PPK Georeferencing](/v1/docs/understanding-ppk-georeferencing) for the concepts and how PPK compares to RTK, then read [Get started with PPK Georeferencing](/articles/post-processed-kinematic-ppk#) for the workflow overview and prerequisites. For a visual overview, watch the video below.

[YouTube video player](https://www.youtube.com/embed/TwSaDepyIZg?si=5nTKwxiIw2fnAF2O)

## Field: capture and export GNSS data

The rover records RINEX data alongside the scan. After the mission, export the rover data and convert it to RINEX format. The conversion procedure depends on the receiver type.

- [Export RINEX data from an Emlid receiver](/v1/docs/export-rinex-data-from-an-emlid-reciever)
- [Export and convert Trimble GNSS data to RINEX format](/v1/docs/export-and-convert-trimble-gnss-data-to-rinex-format)
- [Export and convert Leica GS18 GNSS data to RINEX format](/v1/docs/export-and-convert-leica-gs18-gnss-data-to-rinex-format)

## Office: process the data

Office processing is a two-step workflow. First, produce a corrected trajectory file from the rover and base RINEX files. Then apply the trajectory in Aura to georeference the scan.

- [Process RINEX files in Emlid Studio](/v1/docs/process-rinex-files-in-emlid-studio)
- [Process scan data in Aura using PPK](/v1/docs/process-scan-data-in-aura-using-ppk)