Product overview
The Tianjian TJ-MIMU300S combines a high-precision surveying-grade satellite receiver board, a high-precision three-axis MEMS gyroscope and a three-axis MEMS accelerometer in a MEMS inertial measurement unit. Its integrated inertial/satellite navigation system calculates platform position, velocity, heading and attitude in real time. Single-antenna operation supports dynamic alignment, while a dual-antenna RTK configuration enables rapid, high-precision heading determination. The unit measures 44.8mm×38.6mm×21.5mm and weighs ≤70g, with interfaces designed for unmanned platforms, mapping and surveying.
The navigation engine incorporates SFE optimization for antenna obstruction and multipath interference in environments such as cities and canyons. With good satellite reception, the system provides centimetre-level positioning accuracy. It supports high dynamic range measurement, real-time RTK, IE post-processing and storage of post-processing data, together with a standardized general-purpose user protocol. Gyroscope bias stability is ≤0.3°/h at 1σ; accelerometer bias stability is ≤20μg with 10s smoothing at 1σ. Applications include UAVs, satellite attitude control, autonomous driving, unmanned vessels, stabilization platforms and robots.
