Bistatic RF Target Localization for Long-Range Jam-Resistant Tracking

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Solution Overview

Problem

Monostatic radar systems have limitations such as reduced detection range and susceptibility to interference from cluttering and jamming, which affect their effectiveness in tracking and intercepting objects like missiles and airborne threats.

Innovation Solution

A bistatic radio wave localization system uses two separate antennas for transmitting and receiving radio frequency (RF) waves, allowing for detection and tracking of objects beyond the range of monostatic systems, with a ground-based high-power transmitter and a lower-cost receiver on a flying object, and is less susceptible to interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If monostatic radar systems are used, then the system structure is simple, but the detection range is reduced and susceptibility to interference increases

Engineering Contradiction:
Improvesystem structureVSAvoiddetection range and interference resistance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The radar system is divided into two separate functional components: a transmitter and a receiver. The transmitter is located on the ground and the receiver is mounted on the interceptor, creating a bistatic configuration. This segmentation allows the transmitter to be optimized for high power output while the receiver can be lightweight and cost-effective, simultaneously improving detection range and reducing clutter interference compared to monostatic systems.

Inventive Principle:
Principle #1Segmentation

2Reliability

If ground-based high-power transmitter and lower-cost receiver are used, then detection range is improved, but device complexity increases

Engineering Contradiction:
Improvedetection rangeVSAvoidsystem configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses scattered radiation from the target object as an intermediary to transfer energy from the ground-based transmitter to the receiver on the interceptor. This indirect path through the target allows the receiver to detect signals that would be too weak if received directly from the transmitter, effectively extending detection range while keeping the receiver cost-effective and the overall system manageable in complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

The bistatic system provides more accurate and reliable tracking information, enabling efficient and cost-effective tracking and interception of targets with improved detection ranges and resistance to clutter and jamming.

Implementation Method 1

providing, by a transmitter, an RF transmitted beam toward a target object and providing an indication regarding one or more of the RF transmitted beam and the target object

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

detecting, by a receiver, scattered radiation from the target object

Methodology Applied
Scientific EffectScattering: Scattering

Data Source

PatentUS20240248189A1Targeting system for bistatic radio wave localization
Publication Date: 2024.07.25 ANDURIL IND INC
  • US20240248189A1 patent drawing
  • US20240248189A1 patent drawing
  • US20240248189A1 patent drawing

AI summary

The present application discloses a method, system, and computer system for tracking a target object. The method includes (i) receiving, by a receiver, an indication regarding a radio frequency (RF) transmitted beam, (ii) receiving a scattered reflection of the RF transmitted beam from a first target object, and (iii) processing the scattered reflection of the RF transmitted beam using the indication.