On the Measurement of Range and its Time-Derivatives in LFMCW Radar

Asuzu, Peter

doi:10.1109/radar42522.2020.9114539

Cited by 1 publication

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When solving problems of radar monitoring of vehicles, as a rule, an approximate calculation of the time delay is used τ ( t ):

which is another important factor limiting the permissible range of speed and range measurements. In References [ 35 , 36 , 37 , 38 , 39 ], a refined mathematical model of the reflected radio signal u ( t , R ) is proposed in which the delay is considered as a function of the slow time scale τ ( kT c ). In the development of algorithms for estimating the speed and range of a target, in this case, methods of focusing, contrast optimization and discrete polynomial transformation of the signal phase are used [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

“…In the development of algorithms for estimating the speed and range of a target, in this case, methods of focusing, contrast optimization and discrete polynomial transformation of the signal phase are used [ 40 ]. In the mentioned works [ 35 , 36 , 37 , 38 , 39 ], the transverse component of the V TR velocity is not taken into account.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Elaborated Signal Model for Simultaneous Range and Vector Velocity Estimation in FMCW Radar

Ivanov

Kuptsov

Badenko

et al. 2020

Sensors

View full text Add to dashboard Cite

A rigorous mathematical description of the signal reflected from a moving object for radar monitoring tasks using linear frequency modulated continuous wave (LFMCW) microwave radars is proposed. The mathematical model is based on the quasi-relativistic vector transformation of coordinates and Lorentz time. The spatio-temporal structure of the echo signal was obtained taking into account the transverse component of the radar target speed, which made it possible to expand the boundaries of the range of measuring the range and speed of vehicles using LFMCW radars. An algorithm for the simultaneous estimation of the range, radial and transverse components of the velocity vector of an object from the observation data of the time series during one frame of the probing signal is proposed. For an automobile 77 GHz microwave LFMCW radar, a computer experiment was carried out to measure the range and velocity vector of a radar target using the developed mathematical model of the echo signal and an algorithm for estimating the motion parameters. The boundaries of the range for measuring the range and speed of the target are determined. The results of the performed computer experiment are in good agreement with the results of theoretical analysis.

show abstract

“…When solving problems of radar monitoring of vehicles, as a rule, an approximate calculation of the time delay is used τ ( t ):

Section: Introductionmentioning

confidence: 99%