Tech Blog
RS232, RS485, TTL, and CAN communication interfaces for receiver integration applications
Communication interfaces such as RS232, RS485, TTL, and CAN represent commonly used serial standards. They vary in electrical characteristics, communication modes, transmission distance, transmission rates, and applications.
Jul 22, 2025
Calculation of Solar Azimuth and Application in Stakeout
According to the solar orbit law, the azimuth and altitude angles of the Sun at a specific time and a certain latitude and longitude position can be accurately calculated in the local site coordinate system. The calculation of the exact position of the sun has been widely applied in various fields, such as meteorology and military. Similarly, in the engineering survey, particularly during the stakeout process, the Sun’s azimuth and the direction of the pole’s shadow can be used as a reference to easily determine the direction of the target. This can significantly help in reaching the target more quickly. This paper will introduce the process of calculating the Sun’s azimuth and its application in the stakeout process.
Jun 25, 2025
Evaluating the Quality of GNSS Raw Data
With the advancement of satellite navigation technology, an increasing number of positioning and navigation products have emerged in the market. The quality of raw GNSS data (observation and ephemeris data) is crucial, as it directly affects high-precision positioning accuracy. Data quality not only reflects product performance but also determines data processing strategies. As the core of GNSS-based positioning, navigation, and timing (PNT) services, the quality of observation data directly impacts PNT performance. This article focuses on the role and application value of data completeness rate and cycle slip ratio in GNSS data quality assessment.
May 28, 2025
Jamming and Spoofing: Differences and Impact on GNSS Positioning
Global Navigation Satellite Systems (GNSS), such as GPS, GLONASS, Galileo, and BeiDou, play a crucial role in modern navigation, timing, and positioning applications. However, GNSS signals are vulnerable to intentional and unintentional interference, with jamming and spoofing being the two primary threats. Understanding the differences between the two attacks and their effects on GNSS positioning is essential for developing effective countermeasures.
Apr 18, 2025
What is PPP-AR, Fast PPP-AR, and PPP-RTK?
With the advancement of Global Navigation Satellite Systems (GNSS), the demand for real-time centimeter-level positioning has become increasingly urgent in fields such as autonomous driving, precision agriculture, and marine surveying.
Mar 19, 2025
Easily Troubleshoot Signal Interference: Using the Embedded Spectrum Analysis on BX50 Series Boards
In the practical application of GNSS receivers, especially in complex outdoor environments, signal interference is one of the common issues that lead to degraded positioning performance.
Feb 21, 2025
Test Report of Visual Positioning for Oscar Trek
The Oscar Trek GNSS Receiver is the latest high precision GNSS RTK system, which is an innovative integration of visual positioning technology, GNSS,IMU and a camera.
Feb 8, 2025
How to eliminate GNSS interference signals
Following the guidance of the map software on her mobile phone, Lisa quickly found the Luckin Coffee on the corner. Click the automatic parking button on the car computer, and Jack's new energy vehicle efficiently completes the parking space search and automatic reverse parking.
Jan 16, 2025
Key Technical Parameters of Laser Surveying and Mapping
LiDAR scanning is a technology that uses laser technology for high-precision ranging and modeling imaging. Its relatively complex professional terms and some technical parameters often confuse entry-level users. This article will analyze the important tec
Dec 16, 2024