Radiation emission and sensitive limit joint optimization device for coexistence of multiple radio frequency devices

By jointly optimizing the radiated emissions and sensitivity limits of multiple coexisting radio frequency devices, the shortcomings of existing multi-device electromagnetic compatibility designs are addressed, frequency-resolved electromagnetic compatibility optimization of multi-device systems is achieved, and system performance and safety are improved.

CN122394699APending Publication Date: 2026-07-14BEIHANG UNIV
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Patent Information

Application Number
CN202610584591.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing technologies fail to effectively consider the cumulative effects of interference from multiple devices within a system and the diversity of coupling paths when multiple radio frequency devices coexist, resulting in over-protection or potential risks in electromagnetic compatibility design, and a lack of coordinated optimization of radiated emissions and radiation sensitivity limits.

Method used

A joint optimization device for radiated emissions and sensitivity limits for the coexistence of multiple radio frequency devices is provided. Through coupling gain calculation, interference power and interference margin calculation, objective function construction, constraint module and optimization problem solving module, a sequential quadratic programming method is used to dynamically adjust the weights to achieve frequency-resolved electromagnetic compatibility optimization of multi-device systems.

Benefits of technology

It effectively improves the performance and security of multi-device systems, reduces the risk of system-level interference, ensures that device parameter adjustments are within an engineering-feasible range, and enhances spectrum coexistence capability and operational reliability.

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Abstract

The invention relates to the field of radiation emission and sensitive limit value optimization of multiple devices, in particular to a radiation emission and sensitive limit value joint optimization device for coexistence of multiple radio frequency devices. Comprising a coupling gain calculation module used for calculating the radiation coupling gain of a multi-device system composed of a plurality of transmitting devices and a plurality of receiving devices; the interference power and interference margin calculation module is used for calculating the interference margin of the receiving equipment at the set frequency point according to the interference power; the objective function construction module is used for constructing a comprehensive objective function; the constraint module is used for setting constraint conditions and constructing an optimization problem, and the optimization problem solving module is used for iteratively solving the optimization problem by adopting a sequential quadratic programming method; and the dynamic adjustment module is used for dynamically adjusting each weight in the comprehensive target function, and outputting the transmitting limit values and the sensitive limit values of the multi-device system on all frequency points when an iteration stop condition is met. The method is suitable for electromagnetic compatibility design of a complex system.
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