XH‑INS‑370D‑26J is an airborne fiber‑optic gyro strapdown INS, equipped with self‑developed 70‑series FOG and quartz accelerometers. It supports multi‑sensor fusion with GNSS, airspeed tube, magnetometer and altimeter. Built‑in power‑on self‑test, multiple alignment modes. Real‑time output of position, velocity, heading and attitude. Full‑temperature calibration, customizable protocol, interface and mechanical structure. Designed for long‑duration, high‑precision and high‑reliability airborne navigation missions.

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Description

Technical Features

High output frequency, stable and reliable data
High circuit integration, integrated design of circuits such as navigation solution and accelerometer IF conversion
Integrated design of the whole machine, compact structure, can be built-in with GNSS module and altimeter
Strong autonomy, autonomous navigation and positioning based on odometers and other sensors configured on the vehicle
Rich interfaces and strong adaptability, with various interfaces such as dual CAN, RS422, RS232, synchronous second pulse, etc., which can be customized according to user needs

Key Functions

Equipped with power-on self-test (POST) and abnormality self-check functions
Supports multi-sensor fusion with pitot tube, magnetometer, altimeter and other sensors
Supports multiple alignment modes including self-alignment and transfer alignment
Enables real-time output of carrier information including position, velocity, heading and attitude

Technical Features

Equipped with multiple serial port communication modes
Full-temperature calibration, compensation and alignment completed before delivery
High sampling frequency, wide bandwidth, and strong dynamic adaptability
Output protocols, interface definitions and mechanical outline are customizable according to user requirements

System Accuracy

Inertial Navigation (CEP)	≥1nmile/1h
Integrated Navigation (RTK Fusion)	2cm+1ppm (RTK Fusion), 1.5m (Single-point Positioning)
Heading Accuracy (RMS)	4.5'
Horizontal Attitude (RMS)	1.5'
Inertial Navigation Velocity (Std)	1.5m/s

System Parameters

Communication Interface	RS2322 (RTK and data lines); RS4222 (data lines); CAN1 (odometer and data lines); PPS1 (synchronization)
Data Update Rate (Default)	200Hz (Customizable)
Operating Temperature	-45℃ ~ +71℃
Storage Temperature	-55℃ ~ +85℃
Vibration	5g@20~2000Hz
Shock	40g, 11ms, 1/2 Sine
Supply Voltage	18~36VDC
Power Consumption	≤ 25W@24VDC
Dimensions (mm)	151.1×100×118.5
Weight (kg)	4

Inertial Devices

Gyroscope Type	Type 70 Fiber Optic Gyroscope
Gyroscope Measuring Range	±450°/s
Gyroscope Bias Stability (1σ)	≤ 0.03°/h
Gyroscope Bias Repeatability (1σ)	≤ 0.03°/h
Gyroscope Scale Factor Nonlinearity	≤ 10ppm
Gyroscope Angle Random Walk (ARW)	≤0.003°/√h
Accelerometer Measuring Range	±30g
Accelerometer Bias Stability (1σ)	≤ 30μg
Accelerometer Scale Factor Nonlinearity	≤ 40ppm

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