Digital Full-Bandwidth Direct-Forwarding Racon for Complex Radar Waveforms
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current racon systems are unable to respond to new system radars with broadband and complex modulated waveforms, and their antenna time division multiplexing system saturates in radar-intensive scenarios, leading to ineffective responses.
Innovation Solution
A digital full-bandwidth direct-forwarding racon system with independent transmitting and receiving antennas, utilizing a DRFM real-time forwarding technology and Morse encoding architecture that preserves waveform information, enabling simultaneous response to multiple radar interrogation signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If frequency measurement generation architecture is adopted with parameter detection and matching, then traditional narrow band radar waveforms can be responded to, but new system broadband complex modulated waveforms cannot be responded to
Solution Approach 1:
The patent copies the complete waveform characteristics of the received radar signal including bandwidth, modulation type, and frequency parameters, and regenerates the response signal by directly copying these waveform features rather than using simplified narrow band responses. This allows the racon to accurately respond to various radar waveform types while maintaining reliable identification.
Solution Approach 2:
The system dynamically changes the response signal parameters (bandwidth, modulation characteristics, frequency) to match the received radar waveform parameters. By adjusting these parameters based on the detected radar signal characteristics, the system adapts to different radar types and maintains high response reliability across diverse waveform formats.
2Device complexity
If transmitting-receiving time division multiplexing system is used, then antenna sharing is achieved, but processing capacity saturates in radar-intensive scenarios
Solution Approach 1:
The patent segments the antenna system into independent transmitting and receiving antenna elements, allowing simultaneous operation without time division multiplexing. This segmentation eliminates the processing saturation problem by enabling parallel signal reception and response generation, while the system maintains manageable complexity through modular antenna element design.
Solution Approach 2:
The system transitions from time-domain multiplexing to spatial-domain parallel operation by introducing multiple independent antenna elements. This dimensional change from sequential to parallel operation increases processing capacity and eliminates saturation in radar-intensive environments while keeping the overall system structure organized and manageable.
3Measurement precision
If frequency measurement generation method is adopted with parameter detection before responding, then traditional radar waveforms can be identified, but false identification occurs when multiple radars transmit the same waveform
Solution Approach 1:
The system performs preliminary detection of complete waveform characteristics including bandwidth, modulation type, and frequency parameters before generating the response. By analyzing the full waveform structure in advance and using these pre-detected characteristics to guide the response generation, the system achieves accurate identification even in complex multi-radar environments.
Solution Approach 2:
The patent implements feedback by continuously monitoring the received radar waveform characteristics and using this information to adjust the response signal generation. The detected waveform parameters feed back into the response generation process, enabling the system to distinguish between different radar types and avoid false identification through adaptive response modulation.
Data Source
AI summary
A digital full-bandwidth direct-forwarding racon system and a working method adopt a direct forwarding architecture, which combines a digital broadband DRFM real-time forwarding technology and an encoding response architecture with dots replacing a line. A transmitting antenna and a receiving antenna operate independently and simultaneously, and directly and indiscriminately encode and forward all of the radar query signals in an operating frequency band, thus preserving complete waveform information while realizing a Morse encoding of the response information. The digital full bandwidth direct forwarding racon system is equivalent to a target with a special target characteristic, where when a radar signal within the operating frequency band irradiates the target, an echo signal with a specified Morse encoding modulation characteristic would be generated.