Variable Equalizer Calibration for Flat Wideband Gain
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Solution Overview
Problem
Wireless communication systems, particularly satellite-based systems, face challenges with frequency-dependent gain issues that lead to bandwidth limitations and high installation costs, making them less competitive with traditional wired connections due to non-uniform frequency-dependent gain profiles, which result in inefficient power consumption and signal distortion.
Innovation Solution
The implementation of variable frequency-dependent gain compensation circuits that can be configured to establish a composite frequency-dependent gain, flattening the gain profile and improving dynamic range, reducing power consumption, and enhancing signal processing capabilities by compensating for the frequency-dependent gains of individual components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional satellite-based wireless connections are used, then installation speed is improved, but bandwidth capability deteriorates
Solution Approach 1:
The patent applies parameter changes by implementing variable gain compensation that adjusts frequency-dependent gain parameters across different operating conditions. The system dynamically modifies gain parameters to compensate for frequency-selective fading and environmental variations, enabling the wireless system to achieve bandwidth capabilities comparable to wired connections while maintaining installation speed advantages.
2Adaptability or versatility
If hardware is installed and aligned individually at each location, then adaptability to different locations is improved, but installation cost deteriorates
Solution Approach 1:
The patent implements self-service through automated calibration and alignment systems that enable the hardware to self-adjust to different locations without requiring extensive manual intervention. The system includes automated feedback mechanisms that adapt the gain compensation parameters based on the specific environmental conditions at each installation site, reducing installation costs while maintaining location-specific adaptability.
3Device complexity
If frequency-dependent gain compensation is not implemented, then device complexity is reduced, but signal quality deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the frequency spectrum into multiple bands and implementing independent gain compensation for each band. This segmented approach allows the system to address frequency-dependent gain variations in a modular manner, improving signal quality across the entire bandwidth while keeping the complexity of individual compensation stages manageable.
4Quantity of substance
If bandwidth is increased, then data capacity is improved, but frequency-dependent gain variations deteriorate
Solution Approach 1:
The patent implements dynamics by using dynamically adjustable gain compensation circuits that can adapt in real-time to frequency-dependent variations. The system continuously monitors and adjusts the gain parameters across different frequency bands, enabling high data capacity transmission while maintaining gain uniformity across the expanded bandwidth through active compensation.
Data Source
AI summary
Systems, devices, and methods for determining and establishing frequency-dependent gain compensation in wide bandwidth communication systems are disclosed. Variable frequency-dependent gain compensation circuits, or variable equalizers, have settings that configure them to establish discrete frequency-dependent gain compensation. The frequency-dependent gain compensation can include various types and levels of gain slope and/or ripple. The settings of the variable equalizers can be set by control signals established a control circuit in response to signals from an external computer. The variable equalizers are coupled to other circuits or devices and the frequency-dependent gain of the combined circuit are measured. The settings of the variable equalizer are then changed to establish an optimal frequency-dependent gain profile or frequency-dependent gain that is closest to a predetermined frequency-dependent target gain profile. The settings can then be saved in a memory or register.