SX3: Pushing MEMS Beyond Traditional Stabilization

🧩 Further Reading and Deeper Insight

This article is part of a broader series exploring the engineering principles behind modern inertial sensing and motion stability in advanced control and navigation systems. For deeper technical context and system-level insights, you may also find the following articles valuable:

Together, these articles provide a deeper understanding of how modern MEMS inertial technologies support demanding stabilization, tracking, and navigation-assisted systems across industrial and defense applications.

SX3 Is Here: When MEMS Becomes More Than Just a Stabilization Sensor

For years, when engineers talked about MEMS gyroscopes or MEMS IMUs, the conversation was primarily about stabilization.

Camera stabilization.

Antenna stabilization.

Platform stabilization.

In many cases, the MEMS sensor was considered a supporting component whose job was to help the control loop respond faster and keep the line of sight stable.

But the world has changed.

Autonomous systems, UAVs, robotics, advanced EO/IR systems, tracking applications and modern navigation systems demand much more than simple stabilization.

They require highly accurate motion measurements, high update rates, minimal latency and long-term stability.

This is exactly why Gladiator Technologies’ new SX3 platform is attracting so much attention.

Not because it is faster.

Not because it is smaller.

But because it represents the direction in which the entire MEMS industry is evolving.

In the past, many systems treated the IMU as a supporting sensor. It provided information to the control loop, assisted with platform stabilization and improved tracking performance.

Today, in autonomous platforms, UAVs, robotics systems and advanced payloads, the IMU is becoming a primary source of information upon which critical decisions are made.

As systems become faster, more precise and increasingly autonomous, the quality of the measurement itself becomes more important.

In other words, the question is no longer whether the sensor can measure motion.

The real question is how much you can trust that measurement when no better source of information is available.

It Is No Longer Enough to Know That Motion Exists

In traditional control systems, it is often sufficient to know that the platform is moving.

Modern navigation systems require much more:

How far did it move?
How fast is it moving?
In which direction?
How much time has elapsed?
What is the impact of temperature?
How much error has accumulated over time?

This is a fundamental difference.

A stabilization system corrects error.

A navigation system must minimize the creation of error in the first place.

As accuracy requirements increase, every source of noise, latency and drift becomes significant.

The Real Battle Is Against Noise

Engineers often focus on measurement range.

In reality, however, many systems are limited not by range but by noise.

Noise creates unwanted movement within control loops.

Noise degrades tracking performance.

Noise accumulates over time and impacts navigation accuracy.

The SX3 platform delivers an Angular Random Walk (ARW) of just 0.0254°/√Hr.

This is not simply an impressive number on a datasheet.

It represents a cleaner measurement foundation upon which more accurate systems can be built.

In Today’s Dynamic Systems, Latency Matters as Much as Accuracy

A system can be extremely accurate.

But if the information arrives too late, performance still suffers.

In advanced tracking, stabilization and navigation systems, latency has become one of the most important performance parameters.

The SX3 platform provides:

Output rates up to 10 kHz
Bandwidth up to 600 Hz
Digital message delay of less than 20 µs

When a target changes direction rapidly, when a UAV performs aggressive maneuvers, or when a tracking system must respond in real time, these are not theoretical specifications.

They directly influence system performance.

Temperature Is Still the Enemy

One of the biggest differences between laboratory performance and real-world performance is temperature.

A system may perform flawlessly during testing.

Yet exhibit completely different behavior after hours of operation, under direct sunlight, at altitude or in changing environmental conditions.

This is why thermal stability remains one of the most important characteristics of any inertial system.

The SX3 platform is fully calibrated across its operating temperature range and delivers Bias Over Temperature performance of 35°/hr.

The result is not only improved accuracy.

It is more predictable performance.

When the Entire Measurement Chain Is Re-Engineered

Progress in inertial sensing does not come solely from better sensors.

It also comes from improving the way information is collected, processed and transmitted.

SX3 is built around the new VELOX™ Plus architecture, providing:

External synchronization up to 10 kHz
Communications up to 7.5 Mbaud
Bandwidth up to 600 Hz
Ultra-low latency
Application-specific firmware customization

In other words, this is not simply a sensor.

It is a complete measurement platform designed for next-generation systems.

What Does This Mean for System Designers?

It means:

✓ More stable tracking performance

✓ Cleaner measurement data

✓ Faster system response

✓ Improved synchronization between subsystems

✓ More consistent performance across changing environments

✓ A stronger foundation for navigation, autonomy and motion control applications

Where Is MEMS Heading?

Perhaps the most important change does not appear anywhere on the datasheet.

For years, MEMS sensors were viewed primarily as stabilization devices.

Today, they are increasingly becoming critical components in systems where measurement quality itself directly affects mission performance.

This is not a future trend.

It is happening now.

Autonomous systems, UAVs, robotics platforms, EO/IR payloads, stabilized antennas and modern navigation applications all demand higher levels of inertial performance.

This transition is not driven by a single specification.

It is the result of the maturation of MEMS technology as a whole.

As noise, stability, latency, bandwidth and synchronization continue to improve, the range of applications that MEMS technology can support continues to expand.

SX3 was designed for exactly this reality.

Conclusion

For years, the discussion around MEMS focused on whether the technology could deliver sufficient performance for stabilization and tracking applications.

Today, the question has changed.

The challenge is how to leverage the next generation of MEMS sensors to build systems that are more accurate, more responsive and more autonomous.

Gladiator Technologies’ SX3 platform was built for this new generation of systems.

With exceptionally low noise, ultra-low latency, high bandwidth and the new VELOX™ Plus architecture, SX3 represents the direction in which inertial sensing technology is moving.

No longer just a sensor designed to stabilize a platform.

But a measurement platform designed to help it understand the world around it.

From Stabilization to Navigation: A Technical Look at the SX3 Architecture

To understand why SX3 represents a significant step forward in the MEMS industry, it is necessary to look beyond the marketing headlines and examine the actual performance data.

The new generation includes two primary platforms:

G400D – A 3-Axis MEMS Gyroscope
LandMark™006 – A complete 6-DoF IMU incorporating three gyroscopes and three accelerometers

Both platforms are built on the new SX3 architecture and powered by the VELOX™ Plus processing engine.

Ultra-Low Angular Noise

One of the most important parameters in any gyroscope or IMU is Angular Random Walk (ARW).

ARW is essentially a measure of the sensor’s fundamental noise floor.

The lower the noise:

The cleaner the measurements
The more stable the control loops
The more accurate the navigation calculations
The lower the accumulated error over time

The SX3 platform delivers:

ARW = 0.0254°/√Hr

This level of performance places SX3 among today’s highest-performing MEMS inertial sensing solutions.

Bias Stability

One of the fundamental challenges of any inertial system is drift.

Even when the platform is completely stationary, every sensor generates a small amount of error.

Over time, that error can become significant.

The SX3 platform achieves:

Bias Stability = 0.8°/hr

For many applications, this is one of the most critical parameters affecting long-term tracking, stabilization and navigation performance.

Thermal Performance

Real-world systems do not operate at a constant temperature.

To address this challenge, Gladiator fully calibrates the SX3 platform across an operating range of:

-50°C to +85°C

The result is:

Bias Over Temperature = 35°/hr

This enables more consistent performance even when operating conditions change rapidly or dramatically.

Bandwidth Designed for Dynamic Systems

In real-world applications, accuracy alone is not enough.

The sensor must also be capable of responding to highly dynamic motion.

SX3 provides:

Bandwidth up to 600 Hz
Output rates up to 10 kHz

This combination allows the system to track rapid motion without sacrificing critical information.

For EO/IR payloads, stabilized antennas, robotics and autonomous platforms, this capability can be particularly valuable.

Ultra-Low Latency

In modern control systems, every microsecond matters.

The SX3 platform provides:

Digital Message Delay < 20 µs

This means measurement data reaches the controller almost immediately.

Lower latency simplifies stabilization, improves tracking performance and helps reduce phase errors within control loops.

System-Level Synchronization

Modern systems increasingly require all sensors to operate on a common time reference.

To support this requirement, SX3 provides:

External Sync up to 10 kHz

This capability enables precise synchronization between:

IMUs
Cameras
LiDARs
Radars
GNSS receivers and other navigation sensors

Accurate synchronization simplifies sensor fusion and improves overall system performance.

LandMark™006 – More Than a Gyroscope

The LandMark™006 is not simply an upgraded gyroscope.

It is a complete IMU platform featuring high-performance accelerometers with:

VRW = 40 µg/√Hz
Bias Stability = 0.02 mg
Bias Over Temperature < 0.4 mg
Alignment Accuracy up to 250 µrad

These characteristics are particularly valuable in applications involving inertial navigation, dead reckoning and advanced sensor fusion with GNSS and other navigation sources.

VELOX™ Plus – The Heart of SX3

Beyond the sensor performance itself, one of the most important innovations within SX3 is the new VELOX™ Plus architecture.

The platform enables:

Faster processing
Higher data throughput
Improved synchronization
Ultra-low latency
Application-specific firmware customization

In many systems, these capabilities have as much impact on overall performance as the sensors themselves.

Technical Summary

When evaluated as a complete platform, it becomes clear why SX3 is attracting significant interest among system designers.

This is not about improving a single specification.

It is about combining:

Extremely low ARW
High Bias Stability
Improved thermal performance
600 Hz bandwidth
10 kHz output rates
Sub-20 µs latency
High-speed External Sync
VELOX™ Plus architecture

Together, these capabilities enable SX3 to support not only advanced stabilization systems, but also a new generation of navigation, autonomy, tracking and situational awareness applications—domains where measurement quality itself becomes a critical factor in overall mission success.

Frequently Asked Questions (FAQ)

What makes the SX3 platform different from other MEMS-based IMUs and gyroscopes?

SX3 combines a set of performance characteristics that are rarely found together in a single MEMS platform, including:

ARW as low as 0.0254°/√Hr
Bias Stability of 0.8°/hr
Bandwidth up to 600 Hz
Output rates up to 10 kHz
Digital Message Delay below 20 µs

This combination enables exceptional performance in stabilization, tracking, autonomy and advanced inertial sensing applications.

What does ARW = 0.0254°/√Hr mean?

Angular Random Walk (ARW) is a measure of the gyroscope’s fundamental noise floor.

An ARW value of 0.0254°/√Hr indicates extremely low sensor noise for a MEMS gyroscope.

Lower noise results in:

Cleaner measurements
Improved tracking performance
Better control-loop stability
Reduced accumulation of inertial navigation errors over time

Why is a Bias Stability of 0.8°/hr important?

Bias Stability describes how consistently the gyroscope maintains its zero-rate output over time.

A value of 0.8°/hr means that the sensor’s internal bias remains highly stable, reducing drift and improving long-term measurement accuracy.

This parameter is particularly important in navigation, sensor fusion, tracking and stabilization applications.

Why does Bias Over Temperature matter?

Real-world systems rarely operate at a constant temperature.

The SX3 platform provides Bias Over Temperature performance of 35°/hr across a fully calibrated operating range of -50°C to +85°C.

This helps maintain predictable performance even when environmental conditions change significantly.

What is the advantage of a 600 Hz bandwidth?

A bandwidth of 600 Hz enables the sensor to accurately capture fast dynamic motion without filtering out important information.

This can be particularly valuable in:

EO/IR payloads
Stabilized antennas
Robotics
UAVs
Highly dynamic motion-control systems

Why is a 10 kHz output rate significant?

A 10 kHz output rate allows the system to receive updated motion information up to 10,000 times per second.

Higher update rates can reduce latency within control systems and improve the performance of tracking, stabilization and sensor-fusion algorithms.

What does a Digital Message Delay of less than 20 µs mean?

Digital Message Delay represents the time between measurement and data availability at the output interface.

A delay of less than 20 microseconds allows controllers and tracking systems to operate using more current information, helping reduce phase lag and improve overall system responsiveness.

What is the benefit of External Sync at 10 kHz?

External Sync allows precise timing synchronization between the IMU and other system components such as:

Cameras
Radars
LiDARs
GNSS receivers
Additional navigation sensors

Accurate synchronization is critical for achieving high-performance sensor fusion.

What is the difference between the G400D and the LandMark™006?

The G400D is a high-performance three-axis MEMS gyroscope designed for precise angular-rate measurements.

The LandMark™006 is a complete six-degree-of-freedom IMU that combines gyroscopes and accelerometers in a single package.

In addition to the gyro performance, the LandMark™006 provides:

VRW of 40 µg/√Hz
Accelerometer Bias Stability of 0.02 mg
Accelerometer Bias Over Temperature below 0.4 mg
Alignment Accuracy up to 250 µrad

These characteristics make it well suited for advanced sensor fusion, robotics, autonomy and inertial measurement applications.

Is SX3 intended only for stabilization applications?

No.

While stabilization and tracking remain key application areas, SX3 was designed for a much broader range of uses.

Its combination of low ARW, high Bias Stability, 600 Hz bandwidth, 10 kHz output rates and sub-20 µs latency makes it suitable for autonomous systems, sensor fusion, robotics, navigation-assisted platforms and applications where inertial measurement quality directly impacts system performance.

Tags: Gladiator_Technologies