Volatus Aerospace — DAA Site Selection

DAA · Site Selection

1 · Radar Site

Search sets the radar location. Or use “Place radar” and click the map; drag the pin to fine-tune.

Latitude

Longitude

Antenna height AGL

Units

Position from a file Import sites / layers — KML · KMZ · SHP · GeoJSON Points become candidate sites. While placing the radar, clicks snap to nearby points and vertices of imported layers (hold Alt to place freely).

2 · Radar

Model

Antenna speed

Rotation

Range scale

Min range

H beamwidth

V beamwidth

Detection range on 1 m² target

Probabilistic detection (Pd 50% at max range) Detection range scales with RCS^¼. The 1 m² figure is an assumption — calibrate it against your own field trials. HALO20+ is 4.9° H × 25° V; 60 RPM is only available on short range scales.

3 · Turntable & Wedge

Side view through the wedge high side. The radar spins in the tilted plane; the turntable carries the wedge and radar around in azimuth. Wedge angle (0° level · 90° perpendicular to turntable)

Turntable speed

RPM

Turntable rotation

Dual radars back to back (Radar B wedge faces opposite) Wedge high-side heading (start / when turntable stopped)

° T

Share of time each elevation is inside the beam as the base turns. Shaded band = elevations of the analysis target between the cone of silence and max detection range.

4 · Coverage Analysis

Height vs range over flat ground at the site (terrain ignored; earth curvature included). Colour = share of the turntable revolution each point is inside the beam. Show beam below ground

Target class

RCS

m²

Target altitude AGL

Map shows

Clutter allowance

Earth k-factor

Shade terrain-masked & out-of-beam areas Show range, detection & cone-of-silence rings Coverage opacity

Terrain: SRTM-based ~30 m bare earth (AWS Terrain Tiles). Buildings and trees only via clutter allowance. Right-click the map for a vertical coverage profile along that bearing.

5 · Live ADS-B

Show live traffic around the site

Feed

Radius

Proxy URL (Cloudflare Worker)

Refresh

Ignore above

Public ADS-B feeds block direct browser requests. Open the tool from its Cloudflare Pages address (or run_daa_tool.py locally) and the relay is built in — leave Proxy URL blank. Custom accepts readsb / tar1090 / dump1090 aircraft.json or any v2 API URL; {lat}, {lon} and {r} are substituted. ADS-B traffic always moves in real time; RCS is assumed from emitter category.

6 · Simulated Targets

Type

7 · Track Table

TRACK hit within 3 sweeps · COAST recent hit · SEARCH in coverage, not yet painted · MASKED terrain · ABOVE cone of silence · BELOW beam · WEAK beyond detection range.

8 · Reference Layers

Drop or browse KML · KMZ · SHP · GeoJSON

9 · Project

Project name

Plans auto-save in this browser. KMZ includes the site, rings, simulated targets and coverage raster for Google Earth.

Planning aid only. Radar performance, clutter and detection behaviour are simplified models — validate site selection with field trials before relying on the system for DAA.

Radar Scope · PPI Ground clutter Gain Trail Truth

Place a radar site to build the 3D view.

3D Coverage Vert × Ceilingft Beam envelope Ground coverage Live beam Below ground