Jamming Signal Generator with Real-Time JSR Feedback
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Solution Overview
Problem
Existing jamming signal detection methods require stopping electronic attacks to determine their effectiveness, which disrupts continuous radar tracking and allows targets to be re-identified, leading to inefficiencies in electronic warfare operations.
Innovation Solution
A jamming signal generating apparatus and method that continuously measures and analyzes radar reception signals to calculate a jamming-to-signal ratio (JSR) without stopping the electronic attack, using a signal analyzer, RF source signal output device, frequency up converter, and transmission controller to adjust the jamming signal strength based on JSR calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electronic attack is stopped to measure jamming signal strength, then measurement accuracy is improved, but continuous tracking capability deteriorates
Solution Approach 1:
The system continuously transmits jamming signals and continuously measures their strength without interruption. The measurement process is integrated into the ongoing electronic attack operation, eliminating the need to stop transmission for measurement purposes. This maintains both the continuity of the useful action (jamming) and enables accurate measurement through dedicated measurement circuitry that operates concurrently.
Solution Approach 2:
A dedicated measurement circuit acts as an intermediary to measure the jamming signal strength without interrupting the main jamming transmission. This separate measurement pathway allows simultaneous operation of transmission and measurement functions, resolving the contradiction between continuous operation and accurate measurement.
2Reliability
If jamming signal strength is increased to improve JSR, then jamming effectiveness is improved, but signal distortion increases
Solution Approach 1:
The system measures the actual jamming signal strength transmitted and uses this measurement as feedback to adjust the transmission power. By continuously monitoring the output and comparing it against desired levels, the system can maintain effective jamming (high JSR) while preventing excessive power that would cause harmful signal distortion. The feedback loop enables dynamic adjustment to optimize the balance between effectiveness and signal quality.
Data Source
AI summary
This application relates to a jamming signal generating apparatus. In one aspect, the jamming signal generating apparatus includes a signal analyzer configured to perform measurement and analysis of a radar reception signal, and a radio frequency (RF) source signal output device configured to receive the radar reception signal and to output a video signal by reflecting the measurement and the analysis. The jamming signal generating apparatus may also include a frequency up converter configured to output a jamming signal and a jamming transmission signal measurement device configured to receive the video signal and the jamming signal and to obtain a jamming to signal ratio (JSR).