M-LMS Band Transceivers for Compact Object Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional object detection systems using high-frequency radar face challenges with large antenna arrays due to form factor constraints, particularly in airborne applications where size and weight are critical, and require innovative solutions for efficient detection in smaller form factors.
Innovation Solution
The use of transceivers with antenna arrays operating in the M-LMS band for object detection, employing multilateration and multiangulation techniques, and processing reflected signals to determine object locations, allowing for detection in environments where traditional high-frequency systems are impractical.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-frequency radar signals (5 GHz or higher) are used for object detection, then measurement precision is improved, but device complexity increases due to large antenna array requirements
Solution Approach 1:
The patent changes the frequency parameter from conventional high-frequency (5 GHz or higher) to lower frequency (1 GHz or lower) to reduce antenna array size. This parameter change allows the system to maintain detection capabilities while significantly reducing the form factor from meters to centimeters, resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The patent transitions from using spatial dimension (large antenna arrays) to achieve precision to using temporal dimension (signal processing over time) and frequency dimension (lower frequency operation). This dimensional shift allows maintaining detection precision without requiring large physical antenna arrays
2Measurement precision
If a large number of antennas are used to compute signal arrival angles, then measurement precision is improved, but device complexity increases due to larger antenna array form factor
Solution Approach 1:
By changing the operating frequency parameter to lower values (1 GHz or lower), the patent reduces the wavelength and consequently the required antenna spacing. This allows achieving the same angular resolution with fewer and smaller antennas, resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The patent replaces the mechanical solution of using many physically spaced antennas with a signal processing approach that achieves angle computation through digital signal processing of reflected signals, reducing the need for large mechanical antenna arrays
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 of objects in local environments with a smaller form factor, suitable for intruder detection and surveillance applications, including airborne systems, by leveraging the M-LMS band for signal transmission and processing.
Implementation Method 1
receiving a first set of reflected signals by the set of transceivers, the first set of reflected signals including all or a portion of the second set of transmitted signals that were reflected off of an object of interest
Data Source
AI summary
The techniques described herein relate to a method of detecting an object in an environment using a system including a server and a set of transceivers. A first set of signals is transmitted and received by the set of transceivers, and processed to determine a background for an environment. A second set of signals is transmitted from the set of transceivers, all or a portion of the second set of transmitted signals are reflected off of an object of interest (OOI), and the reflected signals are received by the set of transceivers and processed to determine a first estimated location of the OOI by detecting a change between the first set of received signals and the first set of reflected signals. If the first estimated location is determined to be a reported location of the OOI then it is reported as a reported location to a system.