Satellite Positioning Signal Receiving Device Multi-Frequency Scalability
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Solution Overview
Problem
Satellite positioning signal receiving devices face challenges in supporting multiple frequency bands due to increased circuit complexity and size, making it difficult to efficiently process and synchronize signals across various frequency bands.
Innovation Solution
A satellite positioning signal receiving device with multiple satellite positioning signal receiving circuits, each supporting a single frequency band, utilizes synchronization control interfaces and information transmission interfaces to synchronize and share satellite observation information, allowing for flexible and scalable support of multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple RF circuits are disposed independently for each frequency band, then multi-frequency band support is achieved, but the number of RF circuits and satellite processing units increases significantly
Solution Approach 1:
A single RF circuit is designed to process multiple frequency bands by dynamically adjusting its operating parameters. The satellite processing unit is configured to handle signals from different frequency bands (L1, L2, L5, etc.) using the same hardware resources, eliminating the need for separate dedicated circuits for each band. This universal approach allows the system to support multiple frequency bands while maintaining a reduced number of circuits.
Solution Approach 2:
The RF circuit and satellite processing unit are designed with dynamic reconfiguration capabilities, allowing them to switch between different frequency bands as needed. The system can dynamically allocate processing resources to different frequency bands based on signal requirements, enabling flexible multi-frequency support without requiring static dedicated circuits for each band.
2Adaptability or versatility
If the circuit size of satellite processing unit is increased to support new modernized GNSS signals, then signal processing capability is improved, but the circuit size significantly increases making it difficult to support multi-frequency in future
Solution Approach 1:
The satellite processing unit is designed as a universal processor capable of handling various modernized GNSS signals across multiple frequency bands. By implementing a unified processing architecture that can be configured for different signal types and frequency bands, the circuit size is optimized to support future signal requirements without significant expansion. The same processing unit handles both legacy and modernized signals through software or firmware configuration.
3Productivity
If multiple satellite processing units are disposed for multiple channels, then satellite signal processing capability is improved, but the number of processing units increases
Solution Approach 1:
Multiple satellite processing functions are merged into a single integrated satellite processing unit. The unit is designed to process multiple satellite signals simultaneously through time-division or frequency-division multiplexing, combining what would traditionally require separate processing units into one consolidated device. This reduces the total number of processing units while maintaining the capability to handle multiple satellite channels.
Solution Approach 2:
The satellite processing unit implements dynamic resource allocation to handle multiple satellite channels. Processing resources are dynamically assigned to different satellite signals based on current operational requirements, allowing a single processing unit to effectively perform the work of multiple static units. The system can switch between different processing tasks and allocate resources in real-time to maintain high productivity with fewer physical units.
Data Source
AI summary
A satellite positioning signal receiving device that performs positioning using satellite observation information in a plurality of frequency bands enables gradual addition in accordance with a required number of frequency bands. The satellite positioning signal receiving device includes at least one satellite positioning signal receiving circuit that supports a single frequency band, receives a satellite positioning signal, and generates satellite observation information. Each of the satellite positioning signal receiving circuits includes a synchronization control interface that synchronizes the satellite positioning signal receiving circuits with each other, and a satellite information transmission interface that shares the satellite observation information between the satellite positioning signal receiving circuits. The satellite positioning signal receiving device performs positioning on the basis of satellite observation information.