The XHC1602-L20M816 extends passive person recognition beyond 1000 m via a telephoto 8 mm lens, targeting maritime ISR drones and long-range border surveillance UAV payloads.
The proliferation of long-endurance unmanned aerial vehicles into border security and coastal surveillance programs has exposed a sensor gap: compact low-light modules optimised for drone payloads rarely extend person classification range beyond 800 m without crossing into thermal imaging, which adds mass, power draw, and export licensing complexity to programs already constrained by airframe payload budgets. That gap is driving procurement interest in narrow-field-of-view electro-optical modules that extend classification range within the existing mass envelope of Group 2 ISR platforms.
Telephoto Starlight Imaging at Extended Range
The XHC1602-L20M816C/B closes that range gap with an 8 mm F1.0 telephoto lens on a BSI CMOS sensor rated to 0.0004 lux minimum illumination in monochrome mode. The 8 mm focal length narrows the horizontal field of view to approximately 48°, extending effective person recognition range beyond 1000 m from altitude while maintaining passive imaging that avoids the weight and regulatory complications of active illumination. Internal and external synchronisation modes allow the 816 variant to serve as the primary narrow-field sensor in multi-camera ISR payloads alongside wider-FOV modules from the same product family.
Maritime and Coastal Surveillance Payload Integration
The XHC1602-L20M816C/B interfaces with SoC and FPGA platforms via 4-Lane MIPI CSI-2 in YUV422 8-bit format with UART ISP control, maintaining electrical compatibility with the L20M416 and L20M516 variants. Reconnaissance payload designers can configure multi-lens systems across a single carrier board without separate driver development for each focal length, a significant advantage in programs under accelerated acquisition timelines. At ≤ 30 g and 1.2 W, the module fits gimbals deployed on multi-rotor ISR platforms used in coastal patrol and littoral surveillance operations.
Coastal patrol programs operating in regions where vessel and personnel tracking extends beyond 800 m are beginning to specify narrow-FOV passive optical capability as a baseline requirement for maritime ISR drones. As procurement volumes increase and unit cost pressure intensifies, COTS modules like the XHC1602-L20M816C/B with standardised MIPI interfaces reduce the barrier to entry for integrators developing maritime surveillance payloads without a heritage EO drone program, positioning them to compete across border enforcement, coastal monitoring, and joint ISR operations where thermal alternatives remain cost-prohibitive for expendable payload configurations.