Bistatic Radar 3D Localization via Segmented Antenna Planes
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Solution Overview
Problem
Current radar systems for detecting diverse short-range threats are cumbersome, costly, and complex, requiring multiple systems for varied threats, and lack a single solution for extended range and 3D localization, especially when threats evolve in size or detection distance.
Innovation Solution
A bistatic radar system with a separate transmission and reception device, utilizing a colored transmission method and omnidirectional sensors arranged in perpendicular planes, allowing for 3D object detection and localization with reduced weight, cost, and complexity by raising the reception device and using optical fiber links to minimize interference and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If transmission power and antenna size are increased to extend detection range, then detection range is improved, but system complexity and cost increase
Solution Approach 1:
The radar system is divided into two separate devices: a transmission device and a reception device. The transmission device can be positioned at ground level while the reception device is elevated independently, allowing range extension without proportionally increasing the complexity of the entire system. Each device can be optimized and scaled independently.
Solution Approach 2:
Instead of increasing antenna size in the horizontal plane, the solution elevates the reception device to a higher vertical dimension. This spatial reconfiguration extends detection range by overcoming ground clutter and interference without requiring larger antennas or higher transmission power.
2Length of stationary object
If radar is installed on a high point or tall mast to improve visibility and range, then detection range is improved, but structural weight and deployment complexity increase
Solution Approach 1:
The radar system separates transmission and reception functions into different devices located at different heights. The lightweight reception device can be elevated using simpler support structures, while the heavier transmission device remains at ground level, reducing overall structural weight requirements.
Solution Approach 2:
Optical fiber cables serve as intermediaries to connect the separated transmission and reception devices, enabling signal transmission over the distance between ground level and elevated positions without requiring heavy mechanical support structures for the entire system.
3Length of stationary object
If airborne device is used to elevate radar, then detection range is improved, but payload capacity and energy consumption increase
Solution Approach 1:
Only the reception device, which is lighter and has lower power requirements, is placed on the airborne platform. The heavier transmission device remains on the ground, significantly reducing the payload capacity requirements for the airborne platform while maintaining extended detection range.
Solution Approach 2:
The system uses partial elevation of only the reception device rather than elevating the entire radar system. This partial action achieves the benefit of extended range through improved visibility while avoiding the excessive payload and energy consumption that would result from elevating the complete system.
4Adaptability or versatility
If multiple heterogeneous radar systems are deployed to detect varied threats, then detection capability is improved, but logistical footprint and implementation complexity increase
Solution Approach 1:
The separated reception device can be configured to detect multiple types of threats (aerial, terrestrial, maritime) without requiring multiple different radar systems. The universal reception platform can process signals from various transmission devices, reducing implementation complexity while maintaining versatility.
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 efficient detection and 3D localization of various threats with improved range and reduced logistical and deployment complexities, while maintaining a lightweight and cost-effective design, significantly reducing interference fringes and enhancing detection precision.
Implementation Method 1
a reception device comprising at least two sensors arranged in a second plane perpendicular to the first plane
Implementation Method 2
using optical fiber links to minimize interference and weight
Data Source
AI summary
A three-dimensional object detection system includes a transmission device configured so as to transmit signals using a colored transmission method in a first plane, a reception device comprising at least two sensors arranged in a second plane perpendicular to the first plane, and processing means for processing the transmitted and received signals, wherein the reception device is raised with respect to the transmission device, and wherein the processing means are configured so as to detect the presence of objects: in the first plane based on the signals received from at least one of the sensors using the color of the transmitted signal, in the second plane based on the signals received from at least two of the sensors. The method for determining the presence of objects and for estimating their associated direction and distance is also provided.