The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2026
Filed:
Jul. 27, 2023
Honeywell International S.r.o., Prague, CZ;
Radek Baranek, Brno, CZ;
Vibhor L Bageshwar, Rosemount, MN (US);
Douglas Mark Weed, Forest Lake, MN (US);
Tomas Vaispacher, Brno, CZ;
Honeywell International s.r.o., Prague, CZ;
Abstract
A system comprises a radar altimeter producing range-to-ground measurements; an aided INS or AHRS producing vertical acceleration, roll, and pitch measurements; an air data system producing barometric altitude measurements; and a processor including a BIV hybrid filter, and a RAIV hybrid filter set. The BIV hybrid filter receives the vertical acceleration measurements and barometric altitude measurements. The RAIV hybrid filter set receives input measurements comprising the vertical acceleration, roll, and pitch measurements, BIV hybrid filter statistics, and the range-to-ground measurements. The RAIV hybrid filter set comprises a plurality of hybrid filters that operate in parallel with each other in respective filter slots. A hybrid filter in each filter slot operates on partially overlapping, time limited staggered intervals of the input measurements, with respect to other hybrid filters in other filter slots. Estimated vertical navigation statistics are computed based on input statistics processed in the filter slots.