Telemetry Interface Module for Satellite Modem IF Link
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Solution Overview
Problem
Existing satellite communication systems require separate cables or complex modulator/demodulator technology for telemetry communication between the modem and transceiver, which is costly and prone to electromagnetic interference.
Innovation Solution
A telemetry interface system that facilitates bidirectional digital communication between a satellite modem and transceiver using existing IF receive links, eliminating the need for additional hardware and minimizing interference, while being backward compatible with existing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate cables or complex modulator/demodulator technology is used for telemetry communication, then reliable communication between modem and transceiver is achieved, but system cost and complexity increase
Solution Approach 1:
The patent combines telemetry communication functionality with the existing IF receive link by adding an interface module to the modem and configuring the transceiver to communicate over the shared cable infrastructure. This merging approach eliminates the need for separate dedicated telemetry cables while maintaining communication reliability through protocol-level separation and error handling mechanisms.
Solution Approach 2:
The existing IF receive link, originally designed solely for receiving satellite signals, is made multi-functional by enabling it to carry both its primary IF signal function and secondary telemetry communication function simultaneously. The interface module enables the modem to extract and process telemetry data from the same cable infrastructure used for satellite reception, reducing overall system complexity.
2Adaptability or versatility
If separate cables are added for telemetry functionality, then telemetry communication is enabled, but installation complexity and cost increase
Solution Approach 1:
The patent merges telemetry communication capability into the existing single-cable infrastructure by implementing an interface module in the modem that can process telemetry signals alongside the primary IF signals. This approach maintains adaptability for telemetry while preserving installation simplicity, as no additional physical cables or connectors need to be installed at the customer site.
3Ease of operation
If complex modulator/demodulator technology is used for telemetry, then bidirectional communication is achieved, but electromagnetic interference increases and cost rises
Solution Approach 1:
The patent extracts the modulator/demodulator functionality from the main signal path by implementing a separate interface module that handles telemetry communication independently. This extraction allows bidirectional telemetry communication to be achieved through software-based protocol handling rather than complex hardware modulation/demodulation, thereby reducing electromagnetic interference generation while maintaining full bidirectional capability.
4Ease of manufacture
If existing cabling is utilized for telemetry, then cost is reduced and installation is simplified, but signal interference and error detection capability are limited
Solution Approach 1:
The patent implements comprehensive error detection and feedback mechanisms within the interface module, including signal quality monitoring, error counting, and automatic retry logic. The system continuously monitors the shared cable for signal integrity issues and provides feedback to the control logic, enabling robust error detection and correction even when using the existing cabling infrastructure without additional shielding or isolation hardware.
Data Source
AI summary
Systems, devices, and methods may be provided for communicating telemetry signals between a satellite modem and transceiver over an IF receive link. In an exemplary embodiment, a communication system comprises a modem, a transceiver, an IF receive communication link coupling the modem and the transceiver and configured to allow IF communication between the modem and the transceiver, and a transceiver interface module and a modem interface module, wherein the modules are configured to allow telemetry communication between the modem and the transceiver over the IF receive communication link.