Mobile Radar Measurement Platform Using Drone and Ground Station
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Solution Overview
Problem
Current methods for measuring the electromagnetic performance of ground-based radars are limited by the difficulty in moving fixed beacons and the high cost and restrictions of calibration flights, which prevent thorough verification of radar performance, especially in varied environments and low altitudes.
Innovation Solution
A device comprising a ground station with a beacon function and a flying platform carrying a transmission and reception system, including antennas and processing means, capable of simulating signals and environments to test radar performance at various altitudes and locations, using a drone for mobility and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed beacon mounted on a mast or tower is used for measurement, then the radar performance can be tested in a stable configuration, but the system is difficult to move which considerably limits the measurement locations in azimuth and elevation
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a static fixed beacon system to a mobile platform that can be relocated to different positions. The measurement system is mounted on a vehicle that can move to various locations around the radar, enabling measurements at multiple azimuth and elevation angles while maintaining measurement stability through controlled positioning and steady-state measurement protocols
Solution Approach 2:
The patent uses an intermediary mobile platform (vehicle-mounted system) that serves as a mediator between the fixed radar under test and the various measurement locations. This intermediary platform carries the beacon and measurement equipment, allowing the system to access different positions without requiring the radar itself to be moved or reconfigured
2Adaptability or versatility
If calibration flights with aircraft are used for on-site measurement, then radar performance can be verified in real-world conditions, but the cost is very high and there are restrictions on flying at very low altitudes, over cities, and in all directions
Solution Approach 1:
The patent replaces expensive aircraft calibration flights with a more economical vehicle-mounted measurement system. The mobile platform using ground vehicles provides a cost-effective alternative that can perform similar measurement functions without the high operational costs, regulatory restrictions, and logistical complexity associated with aircraft-based calibration
Solution Approach 2:
The patent substitutes the mechanical aircraft-based calibration system with a ground-vehicle-based system. This replacement eliminates the need for flight operations, airworthiness certifications, and aviation regulatory compliance while achieving the same measurement objectives through ground-based mobile platforms that can access restricted areas more freely
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
Enables comprehensive and cost-effective measurement of radar performance at different altitudes and locations, including areas restricted by traditional methods, with high mobility and the ability to simulate various electromagnetic environments and scenarios.
Implementation Method 1
an antenna assembly oriented substantially along a horizontal axis, capable of transmitting and receiving signals in the direction of said radar
Implementation Method 2
an antenna oriented towards the ground, capable of transmitting and receiving signals in the direction of said station
Implementation Method 3
an antenna capable of transmitting signals towards said radar connected at the input to a power amplifier
Implementation Method 4
an antenna capable of receiving signals from said radar connected at the output to a low-noise amplifier
Implementation Method 5
said power amplifier and said low noise amplifier being connected to said ground-oriented antenna by means of a microwave circulator
Data Source
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AI summary
The invention relates to a device comprising at least: - one ground station (22) having a beacon function, suitable for sending signals to the radar; and - an airborne sending and receiving system (21) which routes the signals sent by the station to the radar (20) and routes the signals sent by the radar to said station (22).