Mobile Signal Analyzer for Radio Channel Propagation Evaluation
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Solution Overview
Problem
There is a lack of convenient solutions to effectively monitor and evaluate the quality of signal propagation over radio channels, particularly for hybrid digital radio signals that carry both analog and digital content, across varying geographical areas.
Innovation Solution
A mobile system equipped with a signal analyzer, processor, and GPS capabilities that measures radiofrequency signal levels and demodulated metrics along a test route, comparing these metrics with predicted values to evaluate the radiation pattern of antennas and provide real-time propagation analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a mobile system is deployed to measure signal levels and metrics along test routes, then signal propagation quality can be evaluated across geographical areas, but system complexity and measurement cost increase
Solution Approach 1:
The mobile system integrates multiple measurement functions into a single platform, including signal level measurement, metric acquisition, GPS location tracking, and data comparison capabilities. This multi-functional approach enables comprehensive signal propagation evaluation while consolidating what would otherwise require multiple separate systems
Solution Approach 2:
The system uses predicted values as an intermediary reference to compare against actual measured metrics. This intermediary dataset enables objective evaluation of signal propagation quality without requiring direct comparison to theoretical models, simplifying the analysis process
2Measurement precision
If comprehensive metrics are measured and compared with predicted values, then propagation quality assessment improves, but measurement and processing time increase
Solution Approach 1:
Predicted values for signal metrics are pre-calculated and stored in a database before field measurements are conducted. This preliminary preparation enables immediate comparison with actual measurements during the mobile survey, eliminating the need for time-consuming real-time computations and accelerating the evaluation process
Solution Approach 2:
The system creates a digital copy of expected signal behavior through predicted values that mirror theoretical propagation models. This digital replica enables rapid comparison with actual measurements without requiring repeated theoretical calculations, significantly reducing processing time
Data Source
AI summary
The present disclosure relates to a method and a mobile system for evaluating signal propagation over a radio channel. Predicted values for the radio channel are acquired at the mobile system, the predicted values being distributed over a geographical area. The mobile system follows a test route defined within the geographical area, the test route including a plurality of measurement points distributed over the geographical area. For each measurement point, the mobile system acquires one or more metrics on the radio channel and compares each of the one or more metrics with a corresponding predicted value. The mobile system evaluates a radiation pattern of an antenna transmitting on the radio channel based on the comparisons. The mobile system may produce a graph of the antenna radiation pattern and maps showing the acquired metrics on the geographical area.