The goal was to design a terrain-aided, all-weather filter, capable of real-time and global navigation, subject to several design objectives (incl. robustness wrt flight dynamics, terrain, and radar sensors). The algorithms combine nonlinear least squares (maximum likelihood) and Kalman filtering approaches.
Radar Altimeter Model, Extensions
These modules extend the functionality of the radar altimeter model (RAM), and include:1) Wrapper extension‘s goal is to automate terrain map (DEM) preparation for the measurement model while refreshing DEM only when needed (adaptive), accounting for attitude and radar angles (applicable to phase-array radars), providing control over computational efficiency (refresh frequency f and DEM data…
Toolkit for Digital Elevation Models
A set of software tools for processing DEMs (digital elevation models). Uses GDAL api, includes:1) DEM Downloader,where user specifies horizontal position and radius, and required DEM resolutions. Metadata are then retrieved using USGS-documented web API, processed, and finally DEMs are downloaded from remote server, with degenerate tiles further processed and/or merged.2) DEM Processor,which transforms from…
Turned tool handles
Here we’re showing how to turn wooden tool handles, in this case for carving chisels with both a The stock used are ash hardwood dowel rods of 35-mm diameter. Each handle is turned using standard spindle-turning tools, with the handle tapering towards the ends. The tenon for a socket-type chisel must fit precisely, requiring frequent…
Opus 11
Orchestration in progress.
Opus 10
The compositions starts in Dmaj, later pivots via Gmin triad to Cmin. The signature sequence progression includes ascending thirds with secondary dominants as passing chords. Later measures feature enharmonic modulation with augmented German sixth resolved to a dominant seventh, as common in Romantic era. Orchestration in progress.
Opus 9
Orchestration in progress.
Gravity-Based Navigation
Frequency-Based Radar Altimeter Model
Turned Projects
This post includes projects produced primarily on a lathe, especially bowls, utensils and other functional items. In addition to the lathe and band saw, the toolset is modest: a set of woodturning gouges and scrapers, faceplate, four-jaw chuck, and a bench grinder.