Radar systems, side-looking

During the last three decades airborne remote sensors have evolved into common instruments for the operational surveillance of oil pollutions (Goodman 1994, Fingas and Brown 2002, Zielinski 2003). Today s mostly used sensor suites include a side looking airborne radar and an infrared/ ultraviolet detector together with visual observation and video systems. 

As mentioned previously, a UAV drone is equipped with electro-optical sensors, infrared cameras, RF/mm-wave systems, and a host of other sensors to accomplish mission objectives during a specified duration that could last from 1 to 4 h. A PEM-based fuel cell (shown in Figure 3.5) with 3 to 5 kW capacity is adequate for a UAV provided it does not deploy a side-looking radar aboard the vehicle. If a sidelooking radar is essential for a specified mission, then a fuel cell with a capacity of 7.5 kW is required. The PEM-based fuel cell can maintain the same output power level over 4 to 6 h. 

Axelsson, S. and Edwardsson, O. 1973, Side Looking Radar Systems and Their Potential Applications to Earth Resources Surveys , ESRO Publication, CR-71, ESRO, Neuilly sur Seine, France (see also Grant). 

Systems Obstacle Detection A transport company in Canada reduced at-frult accidents by 34% in 1st year after installation of a radar-based collision warning system with forward-looking and side sensors to warn drivers of obstacles in blind spots. 1 study (Srour et al. 2003). 

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