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Interference and frequency-to-time mapping based high anti-jamming and anti-interception frequency hopping receiving
Optics Express
|October 7, 2021
Summary
This study introduces a novel frequency hopping receiving scheme that enhances anti-jamming and anti-interception capabilities. The method uses interference and frequency-to-time mapping for improved signal reception across wide frequency ranges.
Area of Science:
- Electrical Engineering
- Optical Engineering
- Signal Processing
Background:
- Traditional frequency hopping receivers face challenges with jamming and interception.
- High-speed signal processing is crucial for modern communication systems.
Purpose of the Study:
- To propose a high anti-jamming and anti-interception frequency hopping receiving scheme.
- To enable reception of fast and large-range frequency hopping signals.
- To enhance receiver selectivity and performance in high frequency bands.
Main Methods:
- Interference and frequency-to-time mapping based scheme.
- High-speed switchable delay lines for adjusting interference arm delay.
- Electrooptical sampling for signal reception.
- Interference used as spectral shaping method.
Main Results:
- Successfully received signals hopping from 15.2 GHz to 35.4 GHz.
- Generated eight receiving passbands between 25 GHz and 42 GHz using a 2.5 ps tuning step.
- Improved receiving selectivity (Q factor) from 18.3 to 43.7 by reducing electric end bandwidth.
- Decoupled electric end bandwidth, sampling rate, and frequency hopping pattern.
Conclusions:
- The proposed scheme offers enhanced anti-jamming and anti-interception performance.
- High-speed switchable delay lines and electrooptical sampling facilitate wide-range frequency hopping signal reception.
- The method improves receiving selectivity and enables more passbands in high frequency bands.
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