Multibeam Jamming Signal Transmission System
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Solution Overview
Problem
Conventional time division beam steering jamming systems are limited in responding simultaneously to multiple threat signals of various frequencies from random angles, resulting in reduced simultaneous response power as the number of threat targets increases.
Innovation Solution
A multibeam jamming signal transmission system that includes a signal reception unit, a signal analysis unit, a control phase value calculation unit, and a multibeam jamming signal transmission unit, which calculates and transmits a multibeam jamming signal based on identified angles and frequencies, allowing for simultaneous response to multiple threats by applying phase control to each array antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If time division beam steering jamming system is used to respond to multiple threat signals, then the system can handle multiple frequencies, but the simultaneous response power is significantly reduced as the number of threat targets increases
Solution Approach 1:
The patent divides the single beam steering function into multiple independent beam steering operations that can be performed simultaneously. Each array antenna element is controlled with independent phase values, allowing the system to create multiple beams at different angles and frequencies at the same time, thus maintaining power while responding to multiple threats.
Solution Approach 2:
The patent transitions from time-division multiplexing (one dimension) to spatial-division multiplexing using array antenna technology (adding spatial dimension). By controlling phase values for each array element, the system can steer multiple beams simultaneously in different directions, enabling parallel response to multiple threats without time sharing.
2Measurement precision
If conventional array antenna with single beam steering setting is used, then the beam pattern can be sharpened, but only one frequency and one beam steering may be set at the same time
Solution Approach 1:
The patent makes the array antenna system universal by enabling it to perform multiple beam steering operations simultaneously. The same array antenna structure that provides sharp beam patterns can now be configured to create multiple independent beams targeting different frequencies and angles at the same time, serving multiple functions with a single system.
Solution Approach 2:
The patent changes the control parameters from single phase values to multiple phase values that can be independently adjusted for each array element. This allows dynamic reconfiguration of the antenna pattern to create multiple simultaneous beams with different steering angles and frequencies, maintaining beam sharpness while adding versatility.
3Measurement precision
If switching configuration is used to select frequencies from multiple local oscillators, then beam pattern sharpness is maintained, but the system complexity increases
Solution Approach 1:
The patent extracts the frequency selection function from the time-division switching configuration and integrates it directly into the phase control mechanism of the array antenna. By calculating appropriate phase values for each array element, the system achieves frequency selection and beam steering in a unified manner, eliminating the need for complex external switching configurations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system maximizes the survivability of allied fighters and battleships by enabling simultaneous response to multiple threats without reducing response power, even when threat signals of various angles and frequencies are present, by allowing parallel beam steering for multiple frequencies.
Implementation Method 1
a control phase value calculating operation of calculating a control phase value of each array path of the array antenna for each of the identified angles
Implementation Method 2
the jamming signal generated from the jamming signal source is up-converted to the frequency of the incident threat signal... a phase shift amount corresponding to each phase shifter is applied and transmitted through each array antenna
Data Source
AI summary
An embodiment of the present invention is a method of transmitting a multibeam jamming signal of an array antenna and including: a signal receiving operation of receiving a radar signal from a plurality of radars; a signal analysis operation of analyzing the received radar signal and identifying an angle and frequency of the signal; a control phase value calculating operation of calculating a control phase value of each array path of the array antenna for each of the identified angles; and a multibeam jamming signal transmission operation of calculating a multibeam jamming signal based on the calculated control phase value and transmitting the multibeam jamming signal for each identified frequency.