Sensor Models

IMU, GPS, RADAR, ESM, and EO/IR

Model various sensors, including: IMU (accelerometer, gyroscope, magnetometer), GPS receivers, altimeters, radar, lidar, sonar, and IR. You can mimic environmental, channel, and sensor configurations by modifying parameters of the sensor models. For active sensors, you can also model the corresponding emitters and channels as separate objects.

Functions

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Altimeter

altimeterSensor Altimeter simulation model

GPS

gpsSensor GPS receiver simulation model

IMU

`imuSensor`	IMU simulation model
`accelparams`	Accelerometer sensor parameters
`gyroparams`	Gyroscope sensor parameters
`magparams`	Magnetometer sensor parameters
`accelcal`	Calibration parameters for accelerometer (Since R2023b)
`allanvar`	Allan variance
`magcal`	Magnetometer calibration coefficients
`fractalcoef`	Filter coefficients for fractal noise generation (Since R2023b)
`transformMotion`	Compute motion quantities between two relatively fixed frames (Since R2020a)
`gravitydir`	Gravity direction vector for given orientation (Since R2023b)
`linaccel`	Linear acceleration from accelerometer reading (Since R2023b)
`tilt`	Tilt angle (Since R2023b)
`compassAngle`	Navigational heading relative to north (Since R2023b)

Infrared

`irSensor`	Generate infrared detections for tracking scenario
`irSignature`	Infrared platform signature

INS

insSensor Inertial navigation system and GNSS/GPS simulation model

Radar

`fusionRadarSensor`	Generate detections or track reports (Since R2021a)
`radarChannel`	Free space propagation and reflection of radar signals
`radarEmission`	Emitted radar signal structure
`radarEmitter`	Radar signals and interferences generator
`rcsSignature`	Radar cross-section pattern

Lidar

`monostaticLidarSensor`	Simulate and model lidar point cloud generator (Since R2020b)
`extendedObjectMesh`	Mesh representation of extended object (Since R2020b)
`tracking.scenario.airplaneMesh`	Mesh representation of airplane (Since R2020b)

Sonar

`sonarEmission`	Emitted sonar signal structure
`sonarEmitter`	Acoustic signals and interferences generator
`sonarSensor`	Generate detections from sonar emissions
`tsSignature`	Target strength pattern
`underwaterChannel`	Propagated and reflected sonar signals

Broadcast System

`adsbCategory`	Enumeration of Automatic Dependent Surveillance-Broadcast categories (Since R2021a)
`adsbTransponder`	Automatic Dependent Surveillance-Broadcast (ADS-B) transponder (Since R2021a)
`adsbReceiver`	Automatic Dependent Surveillance-Broadcast (ADS-B) receiver (Since R2021a)

Blocks

Fusion Radar Sensor	Generate radar sensor detections and tracks (Since R2022b)
GPS	Simulate GPS sensor readings with noise (Since R2021b)
IMU	IMU simulation model (Since R2020a)
INS	Simulate INS sensor (Since R2020b)

Topics

Introduction to Statistical Radar Models for Object Tracking
In a tracking system, sensors are used to generate measurements or detections from targets in an environment.
Simulate Radar Detections
Simulate target detections by radar sensors.
Model IMU, GPS, and INS/GPS
Model combinations of inertial sensors and GPS.
Introduction to Simulating IMU Measurements
This example shows how to simulate inertial measurement unit (IMU) measurements using the imuSensor System object.
Remove Bias from Angular Velocity Measurement
This example shows how to remove gyroscope bias from an IMU using imufilter.

Featured Examples

Scanning Radar Mode Configuration

Model different radar scan modes using the fusionRadarSensor. This example shows how to configure the fusionRadarSensor for several commonly used radar scan modes. With this model, you can simulate radars which mechanically scan, electronically scan, and which use both mechanical and electronic scanning. The scan limits in azimuth and elevation are configurable for both mechanical and electronic scan modes.

Open Script

Generate Off-Centered IMU Readings

Generate inertial measurement unit (IMU) readings from a sensor that is mounted on a ground vehicle. Depending on the location of the sensor, the IMU accelerations are different.

Open Live Script

Generate IMU Readings on a Double Pendulum

Generate inertial measurement unit (IMU) readings from two IMU sensors mounted on the links of a double pendulum. The double pendulum is modeled using Simscape Multibody™. For a step-by-step example of building a simple pendulum using Simscape Multibody™, see Model a Simple Pendulum.

Since R2023b
Open Live Script