System and method of compensating a doppler processor for input

Details System and method of compensating a doppler processor for input System and method of compensating a doppler processor for input

1983-09-30

1986-10-07

Tarcza, Thomas H.

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

Testing or calibrating of radar system

By simulation

342194, G01S 740, G01S 1304

Patent

active

046162291

ABSTRACT:
A system and method of compensating a digital doppler processor for unbalance in in-phase I and quadrature Q signal inputs thereof is disclosed. The method includes the steps of measuring the unbalance in the I and Q signal inputs to the digital doppler processor, determining a desired set of weighting coefficients based on the measured unbalance, and performing doppler filter calculations in the digital doppler processor with the desired set of weighting coefficients. The system comprises a sensor for measuring the unbalance in the I and Q signal inputs to the digital doppler processor, and apparatus for determining a desired set of weighting coefficients for the doppler filter calculations of the doppler processor based on the measured unbalance of the sensor. The disclosure further includes a sensor system for measuring uncompensated unbalance in the in-phase I and quadrature Q input signals of a digital doppler processor utilizing the outputs of at least one doppler filter of the set of digital doppler filters of the doppler processor.

REFERENCES:
patent: 3950750 (1976-04-01), Churchill et al.
patent: 4003054 (1977-01-01), Goldstone
patent: 4122488 (1978-10-01), Martin
patent: 4489392 (1984-12-01), Lewis

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