Radar target velocity estimator

Details Radar target velocity estimator Radar target velocity estimator

1989-12-27

1994-12-20

Barron, Jr., Gilberto

Communications: directive radio wave systems and devices (e.g.,

Determining velocity

Digital

342194, G01S 13524

Patent

active

053749316

ABSTRACT:
A radar target velocity estimator apparatus and method for computing a radial velocity of radar targets from differences in Doppler frequency shift between pulse-returns of multi-pulse waveforms. The velocity estimator uses Doppler frequency shift which is obtained from a finite impulse response (FIR) filter in combination with logarithm tables stored in read-only-memory (ROMs) to calculate the target's velocity. The estimation process requires the calculation of each complex FIR filter value twice during a pulse repetition interval; once for returns of a leading set of radar pulses and then for a trailing set. The estimated velocity is proportional to the phase difference between each corresponding pair of filter values. The estimate is a function of the arctangent of the quotient of the in-phase component of the complex value divided by the quadrature component.

REFERENCES:
patent: 3935572 (1976-01-01), Broniwitz et al.
patent: 3987442 (1976-10-01), McLeod, Jr.
patent: 4106019 (1978-08-01), Alexander et al.
patent: 4110753 (1978-08-01), Sirven
patent: 4137532 (1979-01-01), Taylor, Jr. et al.
patent: 4137533 (1979-01-01), Briechle et al.
patent: 4816833 (1989-03-01), Ferguson et al.
patent: 4910465 (1990-03-01), Dillman

Affiliated with

Also associated with

Rating

Radar target velocity estimator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radar target velocity estimator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radar target velocity estimator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2388304