RF Stimulator System Parallel DSP Segmentation
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Solution Overview
Problem
Current high frequency signal stimulator systems face limitations in frequency range, real-time bandwidth, and dynamic requirements, particularly in radar simulation applications where a small number of analog channels need to quickly change transmission frequency.
Innovation Solution
A high frequency signal stimulator system with at least two independent data producers and a signal generator, where data processing is distributed in real-time, allowing for the creation of high frequency signals across multiple frequency bands with dynamic adjustment capabilities, enabling larger frequency ranges and real-time bandwidth through interpolation and analogue signal generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the total frequency range is divided into fixed frequency blocks with dedicated emitters, then frequency range is improved, but device complexity increases
Solution Approach 1:
The system divides the total frequency range into multiple frequency blocks, with each block processed by a separate DSP card. This segmentation allows the system to cover a wide frequency range (20 MHz to 3000 MHz) while keeping each individual DSP card's processing requirements manageable. The parallel architecture of multiple DSP cards enables the system to handle different frequency blocks simultaneously, resolving the contradiction between wide frequency coverage and device complexity.
2Productivity
If multiple DSP cards operate in parallel to increase real-time bandwidth, then productivity is improved, but device complexity increases
Solution Approach 1:
Multiple DSP cards are merged into a single parallel processing system that shares common resources such as the data server connection and output amplifier stages. This merging approach allows the system to achieve high real-time bandwidth through parallel processing while reducing overall device complexity by eliminating redundant components. The coordinated operation of multiple DSP cards processes different frequency blocks simultaneously, doubling or tripling the real-time bandwidth capacity.
3Manufacturing precision
If fixed frequency blocks are assigned to specific emitters, then manufacturing precision is improved, but adaptability worsens
Solution Approach 1:
The system implements dynamic frequency assignment where DSP cards can be reassigned to different frequency blocks based on operational requirements. Unlike fixed assignments, the DSP cards maintain the capability to process any frequency block within their operational range, allowing the system to adapt to different radar simulation scenarios. This dynamic allocation maintains precise frequency control while providing flexibility in resource distribution.
Data Source
Figure 1a~1b
Figure 2a
Figure 2b
AI summary
A high-frequency signal stimulator system comprises at least two data generators which are independent of one another, a signal processing means and a signal generator. The at least two data generators which are independent of one another are each designed to generate at least one data packet which describes a high-frequency signal to be generated. The signal processing is designed to extract a signal of the data packet which is generated by the first of the at least two data generators which are independent of one another, and a content of the data packet which is generated by the second of the at least two data generators which are independent of one another. The signal generator is designed to generate a high-frequency signal on the basis of the extracted contents.