Radio Follower Jammer Robustness Test System

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Solution Overview

Problem

Current methods for testing radio follower jammer robustness are time-consuming and lack reproducibility, making it difficult to reliably determine and compare the robustness of radios under test.

Innovation Solution

A test system comprising a signal analyzer and a signal generator connected via a communication connection, which records, analyzes, and converts radio communication signals to generate a testing signal by adding a delayed signal, allowing for automatic, defined, and reproducible testing of follower jammer robustness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual testing methods are used to test follower jammer robustness, then the test can be performed with simple equipment, but the testing process becomes time-consuming and results are not reproducible

Engineering Contradiction:
Improvereproducibility of test resultsVSAvoidtesting duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system records the original radio communication signal beforehand and stores it for later use. This preliminary recording action allows the same signal to be reused multiple times in different test scenarios, ensuring reproducibility while eliminating the need to manually recreate identical test conditions each time.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system creates a copy of the original radio communication signal by generating a delayed signal that replicates the characteristics of the original. This copied signal can be precisely reproduced across multiple tests, ensuring consistent and reproducible results without manual intervention.

Inventive Principle:
Principle #26Copying

2Manufacturing precision

If manual follower jammer generation is used, then equipment complexity is reduced, but the ability to perform controlled and defined testing is limited

Engineering Contradiction:
Improveprecision of test signal generationVSAvoidcomplexity of test system
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The signal generator acts as an intermediary device that receives the original signal, adds a controlled delayed signal, and outputs the composite testing signal. This intermediary component enables precise control over the jamming signal characteristics while maintaining a relatively simple overall system architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system controls the delayed signal by adjusting specific parameters such as delay time and signal amplitude. By changing these parameters, the system can precisely control the follower jammer characteristics without requiring complex manual adjustment procedures.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If multiple radios are tested simultaneously, then productivity increases, but ensuring consistent test conditions across all radios becomes difficult without automated control

Engineering Contradiction:
Improvenumber of radios testedVSAvoidconsistency of test conditions
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The test system is designed with universal components that can test multiple radios using the same signal processing chain. The signal analyzer and signal generator can serve multiple radios simultaneously or sequentially with the same configured delayed signal, ensuring consistent test conditions across all devices while maintaining high productivity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3672117B1Test system and method of testing follower jammer robustness of a radio
Publication Date: 2023.10.04 ROHDE & SCHWARZ GMBH & CO KG
  • EP3672117B1 patent drawingFigure 1~2

AI summary

A test system (10) for testing follower jammer robustness of a radio is described. The test system (10) comprises a signal analyzer (14) and a signal generator (18) that are connected with each other via a communication connection (20). The signal analyzer (14) is configured to record a radio communication signal and to convert the recorded radio communication signal to a processing signal that is compatible for the communication connection (20). The signal generator (18) is configured to add at least one delayed signal to the processing signal. Further, a method of testing follower jammer robustness of a radio is described.