Continuous RF Alignment in Electronic Warfare Signal Stimulation
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Solution Overview
Problem
Conventional electronic warfare (EW) simulation systems struggle with time-consuming and tedious alignment processes, particularly in maintaining accurate phase relationships between signal sources across various frequencies and attenuation levels, which hampers system operation.
Innovation Solution
An automated method for aligning amplitude, phase, and time across multiple signal sources in EW simulators, incorporating continuous internal alignment, external measurement port alignment, transfer alignment, and power leveling, allowing for real-time adjustments to compensate for thermal drift and other fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional alignment methods are used for EW simulation systems, then amplitude alignment can be achieved, but phase alignment across frequency and time is not maintained, and the process is time-consuming and tedious
Solution Approach 1:
The system continuously monitors phase and amplitude relationships between signal sources using feedback from measurement receivers, automatically adjusting alignment parameters to maintain precision without manual intervention. The feedback loop enables real-time detection and correction of phase drift across frequency channels.
Solution Approach 2:
The patent replaces manual mechanical alignment procedures with automated electronic phase detection and adjustment systems. Digital signal processing and computer-controlled phase shifters substitute for time-consuming manual calibration, achieving rapid automated alignment of phase relationships across multiple frequency channels.
2Reliability
If manual alignment procedures are used, then some level of calibration can be achieved, but the system cannot maintain alignment under thermal drift and environmental fluctuations
Solution Approach 1:
The system performs continuous alignment adjustments rather than periodic manual calibration. The automated alignment process runs continuously in the background, constantly monitoring and correcting phase and amplitude relationships to maintain stability under thermal drift and environmental changes without requiring operator intervention.
Solution Approach 2:
The alignment system is self-correcting, automatically detecting and compensating for drift without external assistance. The system uses internal measurement receivers and control algorithms to self-adjust phase and amplitude relationships, eliminating the need for manual realignment under varying environmental conditions.
3Measurement precision
If comprehensive alignment of amplitude, phase, and time is performed across all signal sources, then alignment precision is improved, but system complexity and alignment time increase
Solution Approach 1:
The alignment system divides the complex task of multi-source calibration into separate frequency channels and signal source groups. Each channel is aligned independently through systematic measurement and adjustment, breaking down the overall complexity into manageable segments that can be processed automatically without overwhelming system resources.
Solution Approach 2:
The patent employs universal measurement receivers and control algorithms that can align any signal source across any frequency channel. The same hardware and software infrastructure handles amplitude, phase, and time alignment for all signal sources, eliminating the need for separate specialized systems and reducing overall complexity through multi-functional design.
Data Source
AI summary
A method for characterizing the effect of each step attenuator state, on phase and amplitude, which may include in an exemplary embodiment: activating each step attenuator state as the sole contributor to attenuation, and measuring at least one of a step attenuator amplitude contribution (SAAC) and/or a step attenuator phase contribution (SAPC).