Client for the Trek project.

provide read and write debugging tools between USB serial port and serial port (UART ,RS232) under Android system

http://ionosphere.cn

beidou eggjs

Open hardware module for GPS telemetry in embedded applications

This engine takes raw GPS data files as input and produces a receiver position estimate for every epoch of data. It implements the full single-frequency L1 positioning pipeline in portable C11, with no external libraries beyond the standard C library

用于解析ATGM336H-5N串口NMEA数据输出的Lua脚本

27*27mm GPS/Beidou integrated motherboard

High-performance GNSS time-series compression codec in Rust

Tracker for the Trek project.

Rinex files reader (observation, nav).

Server for the Trek project.

React APP同构渲染（服务端渲染）初始化项目

“全息时空”是接入北斗数据的实时定位与即时消息系统。现在已终止研发。这里存放的是它的已公开的资料。

Reading RINEX files has never been so easy and efficient.

Raw RINEX validation of distance-structured correlations in GNSS atomic clocks. Detects exponential decay signatures (λ≈1-4 km) in 539 stations using SPP with broadcast ephemerides, eliminating processing artifact hypothesis. Shows E-W>N-S anisotropy, CMB alignment, orbital coupling. TEP-GNSS Paper 3.

北斗信号模拟器。 BeiDou navigation satellite system signal simulator.

GPS 北斗卫星测试apk，android MVVM框架开发，AndroidX + ViewModel + DataBinding组件

Multi-constellation GNSS SDR signal simulator in Rust — GPS (L1CA/L5/L2C/L1C), Galileo (E1/E5a/E5b/E6), BeiDou (B1C), GLONASS (G1). Generates IQ baseband samples from RINEX 3.04 ephemeris.