Radar Signal Simulation Controller Frequency Segmentation
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Solution Overview
Problem
Current signal generators for testing radar receivers face limitations in generating radio frequency pulses over a wide frequency range, resulting in dead time and lost pulses when changing center frequencies.
Innovation Solution
A simulation controller that splits radar signals into multiple groups corresponding to different frequency bands and assigns them to multiple radio frequency output paths, allowing simultaneous operation without frequency changes, thus avoiding gaps in signal generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single signal generator changes center frequency to cover a wide frequency range, then the frequency range is expanded, but dead time occurs during frequency changes causing pulses to be lost
Solution Approach 1:
The patent divides the wide frequency range into multiple frequency bands, with each band handled by a dedicated signal generator. This segmentation eliminates the need for frequency switching between bands, as each generator operates continuously at its assigned frequency range, thereby eliminating dead time while maintaining wide frequency coverage.
Solution Approach 2:
The patent transitions from a single-dimensional approach (one generator changing frequency) to a multi-dimensional approach (multiple generators operating in parallel at different frequencies). By adding the dimension of parallel operation, the system achieves wide frequency coverage without the time loss associated with sequential frequency changes.
2Adaptability or versatility
If a single signal generator operates over a wide frequency range, then frequency coverage is improved, but signal generation continuity deteriorates due to frequency switching interruptions
Solution Approach 1:
The frequency coverage is segmented into multiple continuous bands, each handled by a dedicated signal generator. This ensures that signal generation remains continuous within each band without interruptions, while the overall system maintains wide frequency coverage through the combined output of multiple generators.
Solution Approach 2:
Each signal generator operates continuously at its assigned frequency without interruption or switching, ensuring uninterrupted signal generation within its band. The system maintains continuous useful action across the entire frequency range by having multiple generators operating in parallel without dead time between frequency changes.
3Productivity
If multiple signal generators are used to cover wide frequency range simultaneously, then frequency coverage and continuity are improved, but system complexity and cost increase
Solution Approach 1:
The patent designs each signal generator to be a universal unit capable of operating independently within its assigned frequency band. This multi-functionality allows the system to achieve wide frequency coverage and continuous operation without requiring overly complex integrated systems, as each generator is a self-contained, relatively simple unit.
Data Source
AI summary
The invention relates to a versatile generation of radar signals for simulating a radar scenario. Radar signals may be generated by multiple RF output paths having different frequency ranges. Pulse descriptive words of radar signal simulation data are split into multiple groups according to the frequency or frequency range of the RF output paths and the split data are provided to the related RF output path.