Motivation
Motivation
Embedded Files
Interferometry and passive radar techniques enable precise direction finding and range estimation, critical for applications like navigation, surveillance, and wireless communications.
Research Gap
Research Gap
Existing systems struggle with range estimation using singular arrays due to phase ambiguity, leaving a need for novel approaches to resolve this challenge.
Novel Approach
Novel Approach
This project uses discrete phase differences from a switched antenna array, treating phase as vector lengths, enabling simultaneous angle of arrival (AoA) and range estimation.
Implementation
Implementation
A 15-element switched antenna array, integrated with a USRP B210 and two HMC253 RF switches, processes 14 phase differences through complex matrix calculations to triangulate and resolve the transmitter’s position.
Parts
Parts
2.4 GHz Transmitter
16-Element Passive Antenna Array
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