TY - JOUR

T1 - Contribution of auxiliary coherent radar receiver to target's velocity estimation

AU - Cohen, Itzik

AU - Levanon, Nadav

N1 - Publisher Copyright:
© The Institution of Engineering and Technology 2017.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Recent progress in bistatic radar techniques can be used to improve performances of classical monostatic radar. A prominent limitation of coherent radar is its inability to measure the complete velocity vector (magnitude and direction) of a detected target. A single coherent detection can provide range-rate only. At least two detections, separated in time, are needed to estimate the target's velocity vector. This study discusses how the velocity vector can be determined by two simultaneous detections spaced in distance. The second detection is obtained by an auxiliary distant bistatic coherent receiver; an approach proposed in the 1990s to enhance meteorological radar. Being a very simple case of a distributed radar system allows for a simple demonstration of how to calculate the target's position and velocity vector and how to analyse the estimation accuracy, including geometric dilution of precision plots of the velocity error. Also discussed are two methods to identify correct data association when more than one target is detected.

AB - Recent progress in bistatic radar techniques can be used to improve performances of classical monostatic radar. A prominent limitation of coherent radar is its inability to measure the complete velocity vector (magnitude and direction) of a detected target. A single coherent detection can provide range-rate only. At least two detections, separated in time, are needed to estimate the target's velocity vector. This study discusses how the velocity vector can be determined by two simultaneous detections spaced in distance. The second detection is obtained by an auxiliary distant bistatic coherent receiver; an approach proposed in the 1990s to enhance meteorological radar. Being a very simple case of a distributed radar system allows for a simple demonstration of how to calculate the target's position and velocity vector and how to analyse the estimation accuracy, including geometric dilution of precision plots of the velocity error. Also discussed are two methods to identify correct data association when more than one target is detected.

UR - http://www.scopus.com/inward/record.url?scp=85042882063&partnerID=8YFLogxK

U2 - 10.1049/iet-rsn.2017.0299

DO - 10.1049/iet-rsn.2017.0299

M3 - מאמר

AN - SCOPUS:85042882063

VL - 12

SP - 287

EP - 293

JO - IET Radar, Sonar and Navigation

JF - IET Radar, Sonar and Navigation

SN - 1751-8784

IS - 3

ER -