s.Link — telemetry, commands and video
ELINTIR radio solutions connecting a station to its operator. Telemetry, commands and video within a shared control environment.
Overview
Communications for the platform’s task
s.Link · telemetry and commands
A radio channel for equipment status, observation data and commands between a station and its operator.
s.Link4k · video
The s.Link video direction combines data protection, loss recovery and a shared operator console. Our own transport brings video delivery and quality control together.
Data protection
The stack implements encryption and data authentication. Integration parameters and configuration are agreed for each application.
Applications
From telemetry to video links
Fixed and mobile systems
Data exchange between equipment and operator, status display and remote interaction.
Ground robots
We study video-link profiles for built environments and multipath propagation.
Airborne platforms
We assess video-link profiles for line-of-sight channels and changing propagation conditions.
Validation
The engineering behind the solution
Radio path
The telemetry channel and video-file delivery have been tested through a real radio path.
Software stack
Modulations, transport and adaptation mechanisms are evaluated with software tests and channel modelling.
Application-specific configuration
We shape the configuration around the platform, operating environment and data requirements, drawing on software checks, channel modelling and radio-trial results.
Modulations
Different conditions, different waveforms
GMSK
Used in the s.Link telemetry direction for short messages and commands.
BPSK, QPSK and QAM
Options evaluated in software models for different balances of throughput and channel requirements. The baseline video profile has also been tested through a radio path.
CSS and phase hybrids
Chirp signals and selected hybrid variants have been studied in software models for short-message delivery.
COFDM for ground platforms
A video-link development direction for ground robots in environments with signal reflections. Modelling confirmed advantages of the studied profile in multipath channels, providing an important foundation for ground platforms.
Adaptation
Matching video to channel capacity
Delivery assessment
The software stack implements available-rate estimation using data-reception results.
Video-quality selection
A software controller selects quality and bitrate according to assessed channel capacity. Behaviour under changing conditions has test coverage.
Coordinated changes
Profile-control mechanisms account for interaction between sender and receiver. They are evaluated as part of the shared transport and video stack.
In-house implementation
Our own physical layer, transport and software provide integration flexibility: we can modify the radio profile, data handling and video control together for the customer’s platform.
Integration
Integration for your platform
Platform and interfaces
We can discuss system purpose, equipment interfaces, video and telemetry requirements.
Demonstration and assessment
We can demonstrate the solution and discuss a configuration for your application. Technical materials and detailed specifications are provided during focused integration discussions.
Contact us for a demonstration and an integration discussion.