![[Everything About Drone Batteries] Part 1: Drone Battery Fundamentals and Chemical Characteristics: LiPo vs. Li-Ion](https://quad-drone-lab.co.kr/wp-content/uploads/2026/04/Drone-Battery-Anatomy-and-Assembly-768x429.jpg)
Hello to all the graduate students and researchers dedicating yourselves to the advancement of drones and next-generation air mobility (UAM, eVTOL)! Welcome to the first installment of our deep-dive series on the most critical, yet arguably the most challenging, component of drone design: the Battery. As the mission scopes of drones expand from simple hobbyist…
![[New Blog Series Introduction] Everything About Drone Batteries – From Basics to Next-Generation Technologies](https://quad-drone-lab.co.kr/wp-content/uploads/2026/04/Drone-Battery-Technology-Masterclass-768x1376.jpg)
Hello to all the graduate students and researchers dedicating yourselves to the research and development of drones and next-generation air mobility (UAM, eVTOL)! When discussing drone performance, the ‘battery’ is an absolutely indispensable core component. To increase the aircraft’s payload and maximize flight time, a deep understanding of battery chemical characteristics, high-voltage design, and sophisticated…
![[Hybrid Navigation System: Part 3 Hardware & Modeling] A Deep Dive into Industrial High-Performance INS & Making GPS Jamming Simulator](https://quad-drone-lab.co.kr/wp-content/uploads/2026/04/Physics-of-IMU-Drift-Errors-768x429.jpg)
Hello! To all the university students and researchers pushing the boundaries of autonomous flight and unmanned navigation technologies—welcome back to QUAD Drone Lab. In our previous post, <Part 2>, we explored the state estimation principles of the PX4 EKF2 (the brain of our drone) and set up a safe Gazebo SITL simulator environment for testing….
Hello, this is QUAD Drone Laboratory.I’m Geunchan Lee, Senior Researcher at QUAD Drone Lab. In the previous article, we covered one of the key features of the 911 FALCON system: the battery swap system — including its basic idea, overall structure, and operating sequence. We designed an automatic battery replacement system based on a station mounted on…
![[Hybrid Navigation System: Part 2] Principles of PX4 Autonomous Navigation and Gazebo SITL Simulator Configuration](https://quad-drone-lab.co.kr/wp-content/uploads/2026/04/PX4EKF2-Architecture-768x429.jpg)
Hello! University students and drone researchers exploring the frontiers of autonomous flight and navigation technologies, welcome back to the QUAD Drone Lab. In our previous post, <Part 1>, we drew inspiration from the wisdom of World War II fighter pilots to design a blueprint for a ‘3-Stage Non-GPS Hybrid Unmanned Navigation System’. This system allows…
![[Hybrid Navigation System Series Part 1: Overview] Flying Hundreds of Kilometers Without GPS? Learning a Hybrid Navigation System from WWII Pilots](https://quad-drone-lab.co.kr/wp-content/uploads/2026/04/컴패니언-컴퓨터-기반의-AI-지형지물-보정-768x419.jpg)
Hello, university students and drone researchers who are diving into the world of autonomous flight and navigation systems! The drones we use every day can locate themselves as quickly and accurately as our smartphones. This is all thanks to the Global Navigation Satellite System (GNSS, commonly referred to as GPS). However, in modern, complex battlefields…
Recently, news about “Iranian suicide drones flying hundreds of kilometers to attack a target” has become an almost daily occurrence. Watching these reports, a thought suddenly crossed my mind: “With recent GPS jamming making it difficult to use GPS for navigation, how did they manage to fly to their targets?” This led to another question:…
Hello, this is QUAD Drone Laboratory.I’m Geunchan Lee, Senior Researcher at QUAD Drone Lab. In the previous articles, we organized the airframe design of the 911 FALCON drone, reviewed the placement directions of the main components, and covered the design of the dedicated mounts required for actual integration into the frame. In this article, we…
![ROS2 Mastery [Part 2] Core Communication Concepts of ROS2 and How to Use the Powerful Utility “RQT”](https://quad-drone-lab.co.kr/wp-content/uploads/2026/03/0331_그림6-768x512.png)
Hello! This is Aiden from the Marketing Team. To all university students and researchers studying robotics and autonomous driving: Did you successfully finish building and building your ROS2 workspace in Part 1? Now, it’s time to connect the ‘neural network’ so your robot system can breathe. Modern robot software is not a single giant program,…
Hello, this is QUAD Drone Laboratory.I’m Geunchan Lee, Senior Researcher at QUAD Drone Lab. In the previous article, we organized the airframe structure of the 911 FALCON drone and reviewed the placement directions of the main components. Based on the datasheet and direct measurements, we reverse-engineered the HTX415 frame and arranged the Power Module, PDB,…
