100 Hz Native GNSS — Pure GNSS Architecture for Real-Time Control
Genuine satellite-based position updates every 10 milliseconds — computed directly from GNSS measurements, not IMU interpolation between frames. No inertial drift. No sensor compensation errors. Pure positioning from the signal chain alone.
What Is 100 Hz Native GNSS?
Septentrio’s 100 Hz update rate is not achieved through IMU interpolation. The baseband processor completes the full satellite signal chain — acquisition, tracking, and positioning computation — in every 10 ms cycle, outputting genuine ranging results. Every position frame is independently trustworthy.
Native Update Rate
Genuine satellite position every 10 ms — not IMU-interpolated between frames
Ultra-Low Latency
Low latency + low jitter = predictable control loop delay for stable closed-loop control
MEMS IMU Inside
Pure GNSS architecture — no MEMS accelerometer or gyroscope, eliminating all inertial error sources
Drift Accumulation
No inertial drift over time — each position frame computed independently from satellite observations
Pure GNSS Architecture — No IMU-Induced Errors
The Septentrio pure GNSS receiver contains no MEMS IMU internally, fundamentally eliminating all inertial sensor error sources. Baseline accuracy is determined solely by GNSS signal quality — not by the quality of sensor compensation algorithms.
No MEMS Zero Bias
No initial bias from accelerometers or gyroscopes, no bias accumulation over time. Competitive receivers with integrated IMU require constant bias estimation and correction — pure GNSS architecture skips this entirely.
No Temperature Drift
No sensor output drift from temperature changes. Consistent accuracy across the full operating temperature range of -40°C to +85°C. MEMS-based solutions require temperature calibration that can never fully compensate for thermal gradients.
No Vibration Coupling Errors
No vibration-induced measurement errors, suitable for high-vibration environments including UAV propulsion systems, construction machinery, and industrial robotics where MEMS accelerometers degrade significantly under mechanical vibration.
Positioning from Satellite Observations Only
No accumulated drift from inertial dead reckoning. Each frame is computed independently. In challenging environments, errors do not grow with signal outage duration. Accuracy depends purely on satellite geometry and differential correction quality.
Ultra-Low Latency for Real-Time Control
Low latency and low jitter enable predictable control loop delay, more stable closed-loop control, and simpler PID tuning. For high-speed platforms, the difference between 4-6 ms and 20 ms of latency translates into a multiple-fold gap in control responsiveness.
Nav Latency (99.9%)
Predictable delay for closed-loop control systems — essential for UAV flight controllers and autonomous vehicle guidance
Latency Jitter
Minimal variation between updates ensures consistent control loop timing — simpler PID tuning than high-jitter solutions
Heading Output
Dual-antenna heading synchronised with position at 100 Hz — 0.15° accuracy at 1 m baseline, no magnetic interference
100 Hz Native GNSS vs Industry Solutions
Septentrio’s pure GNSS architecture delivers 10x the genuine position updates of typical alternatives — with no IMU interpolation, no drift, and no sensor compensation errors.
| Capability | Septentrio Pure GNSS | u-blox F9P (Typical) | DJI RTK (Typical) |
|---|---|---|---|
| Update Rate | 100 Hz (native) | 10-20 Hz (interpolated) | 10-20 Hz (IMU-assisted) |
| Position Source | Pure GNSS signal chain | GNSS + IMU blending | GNSS + IMU dead reckoning |
| Drift Over Time | None — each frame independent | Accumulates via IMU bias | Accumulates via INS coupling |
| Latency (typical) | <10 ms (99.9%) | 15-30 ms | 20-50 ms |
| Interference Rejection | 40-60 dB (AIM+) | ~25 dB | ~25 dB |
| Heading | 0.15° @ 1m, 100 Hz | Requires external mag | IMU-based, drift-prone |
Applications for 100 Hz Native GNSS
High-rate native GNSS positioning is essential wherever dynamic motion, vibration, or tight control loops demand genuine position data — not interpolated estimates.
UAVs & Drones
100 Hz native GNSS + <10 ms latency = true real-time control for high-speed flight. While competitors’ 200 Hz is IMU-interpolated, every Eview position frame is a genuine satellite measurement.
Autonomous Ground Vehicles
Reliable positioning without drift accumulation during extended autonomous operation. Pure GNSS architecture means no inertial drift accumulating between waypoints during UGV missions.
Construction Machinery
No MEMS temperature drift or vibration coupling errors in harsh environments. Positioning accuracy depends only on satellite geometry and differential link quality, not on mechanical vibration.
High-Precision INS Integration
Extremely stable, authentic, and low-latency 100 Hz data as the backbone for high-precision, high-dynamic INS integration. Pure GNSS data provides the reference truth for INS filter updates.
Precision Agriculture
AIM+ anti-jamming ensures operational continuity near high-voltage lines and substations. IONO+ maintains RTK fixed solutions during summer ionospheric activity peaks in open-field operations.
Surveying & GIS
Dual-antenna heading provides 0.15° accuracy at 1 m baseline without relying on magnetometers — immune to steel-structure magnetic interference. 100 Hz heading synced with position.
Experience 100 Hz Native GNSS Positioning
Speak with Eview’s GNSS specialists to select the right pure GNSS receiver for your UAV, autonomous vehicle, machine control, or INS integration application. All units ship with technical support and full integration documentation.