Drone Radar Target Simulation Using Spatial and Delay Profiles
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Solution Overview
Problem
Current radar simulation methods are limited in accurately simulating the trajectory of targets, particularly in training operators and calibrating radar systems, as they often rely on physical mock vehicles or stationary transceivers, which may not effectively replicate the dynamic characteristics of real targets.
Innovation Solution
A method and system that utilize a simulating vehicle, such as a drone, to maneuver according to a defined spatial simulation profile and signal delay profile, allowing it to re-transmit radar signals with simulated characteristics, thereby accurately simulating the trajectory of a target, including azimuth, elevation, and signal delays, even within the radar blind zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If physical mock vehicles or stationary transceivers are used for radar simulation, then the simulation setup is simple, but the accuracy of trajectory simulation and dynamic characteristics replication is insufficient
Solution Approach 1:
The patent employs a mobile simulating vehicle (drone) that can dynamically maneuver in three-dimensional space to simulate target trajectories, replacing static mock vehicles or transceivers. The vehicle's position is continuously adjusted according to a spatial simulation profile, enabling accurate replication of dynamic target characteristics while maintaining system flexibility and adaptability.
Solution Approach 2:
The patent replaces physical mechanical mock vehicles with a mobile platform that uses electronic signal processing and GPS-based position control. The simulating vehicle receives radar signals, processes them with electronic delay elements, and re-transmits them, substituting mechanical trajectory replication with an electronic-mechanical hybrid system that offers greater precision and flexibility.
2Adaptability or versatility
If stationary transceivers are used to simulate targets, then the system is easy to set up, but it cannot effectively simulate dynamic target trajectories and movements
Solution Approach 1:
The simulating vehicle is equipped with a mobile platform that can maneuver in three-dimensional space, allowing it to dynamically replicate various target trajectories including horizontal and vertical movements. The vehicle's position is controlled based on a spatial simulation profile that defines the desired target path, enabling flexible simulation of different combat scenarios and target behaviors.
Solution Approach 2:
The patent introduces a mobile simulating vehicle as an intermediary between the radar system and the training/calibration process. This vehicle acts as a flexible mediator that can be positioned anywhere in the radar's coverage area, receiving and re-transmitting radar signals while maintaining communication with a control system that manages the simulation parameters and trajectories.
3Reliability
If a mobile simulating vehicle is used to accurately simulate target trajectories, then the simulation realism is improved, but the system complexity and control requirements increase
Solution Approach 1:
The simulating vehicle integrates multiple functions into a single mobile platform: it serves as both the physical carrier for signal transmission and the control node for trajectory management. The vehicle contains a transceiver system that can receive radar signals, process them with electronic delay elements, and re-transmit them, while simultaneously monitoring its own position and adjusting its trajectory according to the spatial simulation profile.
Solution Approach 2:
The system employs feedback mechanisms where the simulating vehicle's position is continuously monitored via GPS or other positioning systems, and this position information is fed back to the control system. The control system uses this feedback to adjust the vehicle's trajectory and ensure it accurately follows the desired spatial simulation profile, thereby maintaining simulation realism despite the increased system complexity.
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
This approach enables more realistic and flexible simulation of target trajectories, enhancing radar operator training, calibration, and testing by accurately replicating the dynamic characteristics of real targets, including distance and signal characteristics, thus improving the effectiveness of radar systems.
Implementation Method 1
re-transmitting a signal toward the radar at least according to the signal delay profile
Data Source
AI summary
A method for simulating a trajectory of a radar target includes the procedures of determining a simulated trajectory of the simulated target and determining a simulating vehicle trajectory for a simulating vehicle. The simulating vehicle trajectory is defined according to a simulation profile. The simulation profile at least includes a spatial simulation profile and a signal delay profile. The method further includes the procedures of maneuvering the simulating vehicle according the spatial simulation profile, receiving a radar signal by the simulating vehicle and retransmitting a signal toward the radar at least according to the signal delay profile.