Signal processing and radio ranging system

Details Signal processing and radio ranging system Signal processing and radio ranging system

1988-11-23

1989-12-12

Tarcza, Thomas H.

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

Determining distance

With frequency modulation

342 61, 342159, 342196, G01S 1326

Patent

active

048870889

ABSTRACT:
A radio slant ranging system having a bank of range gates producing outputs X.sub.I to X.sub.N which comprise ground clutter components on a thermal noise pedestal. The clutter components are regarded as defining a single sinusoidal ripple envelope on the noise pedestal and a clutter centroid tracking signal is derived by using a digital filter to calculate the real and imaginary components A.sub.1R and A.sub.1I of the transform: ##EQU1## and then forming the arctangent of A.sub.1I /-A.sub.1R. The signal processing method used in the system may have general application.

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