Analysis of Infrared Signature Variation and Robust Filter-Based Supersonic Target Detection

Table 1

Measurement sensors used during 24-hour recording.

Device	Model	Specification	Comment
LWIR camera		Spectral band: 7.5–13.5 μm; FPA: 324 × 256; Output: 14-bit digital; NETD: <50 mK; FOV: 18° × 14° (25 mm lens)	IR measurement
CCD camera		Spectral band: visible; FPA: 16.1 M Exmore APS-HD CMOS; Output: 1920 × 1080, 60 p; FOV: 18–200 mm lens	Visible measurement
DSLR camera		Spectral band: visible; FPA: 21.1 M CMOS; FOV: 24–70 mm F2.8L	Recording environments
Thermal target		Type: gas heater; Temperature: 450°C; Diameter: 160 mm	Simulating antitank missile
IR thermometer		Type: IR sensor (8–14 μm); Range: −50~1000°C; Resolution: 0.1°C; Response time < 150 ms	Measuring target/environment temperature