Coverage simulation principles
INVOLI supports its clients in choosing the ideal location and simulating the coverage of G-1090 receivers. This process involves analyzing the customer's requirements and intentions. The form on the first page is designed to collect relevant information to provide the most accurate coverage simulation possible.
The number of receivers needed will depend on the specific use case presented by the customer. Factors such as lowering the minimum detection level above the ground, requesting MLAT position validation, or increasing the update rate will lead to a greater quantity of receivers being necessary.
ADS-B transmissions are the easiest to spot, as they only require a single receiver due to the position data being included in the message. In contrast, the MLAT positioning technique is more complex and demands a shorter distance between receivers, since reliable results depend on the overlapping coverage from at least four receivers.
Because of the curvature of the Earth, the receiver needs to be positioned at a higher elevation above ground level. Similarly, transmitters that operate at greater altitudes are more easily detected by numerous receivers, whereas those that are closer to the ground are less likely to be noticed by many receivers.
To effectively utilize the multilateration algorithm, it is essential to receive signals from 4 to 5 receivers concurrently to achieve a reliable position calculation. This necessitates that the distances between the receivers be significantly shorter than those used for ADS-B signal detection. The illustration below depicts a scenario with receivers positioned at 30m AGL, where the horizon extends approximately 20km away. The detection area for MLAT with five receivers is notably smaller than the coverage area of a single ADS-B cell. While strategically placing receivers on elevated terrains such as hills or tall masts can enhance coverage, this approach is not feasible in every situation.
Important: The simulations are for informational use only, and we do not guarantee the accuracy of the results obtained. There can be significant differences in implementation due to the limitations of our models, and the presence of obstructions near the antenna can greatly affect the results, making precise modeling difficult. |
Please fill in the form given below to request the simulation for your use case:
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