Software/hardware digital signal processing (DSP) altimeter

Details Software/hardware digital signal processing (DSP) altimeter Software/hardware digital signal processing (DSP) altimeter

1996-10-17

1998-02-17

Sotomayor, John B.

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

Determining distance

Altimeter

342121, 342145, G01S 1308

Patent

active

057195820

ABSTRACT:
A radar altimeter system uses a microprocessor-based subsystem to process radar signals in software. The subsystem includes a track loop and a verify loop for digital signal processing of the radar signals. The track loop generates a gate pulse and integrates a radar return signal over the time window defined by the gate pulse in order to determine the leading edge of the return pulse. The verify loop positions the gate pulse for maximum overlap with the return pulse and integrates the return pulse over the gate pulse to determine the maximum signal strength of the radar return signal.

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patent: 5150125 (1992-09-01), Hager

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