geography

What is Classification of remote sensing- what is the difference between an active sensor and a passive sensor – which of following is a passive as opposed to active remote sensor- what is active sensor in remote sensing

solar sensors can only capture data during daylight hours. Active sensors are different from passive sensors. Unlike passive sensors, active sensors require the energy source to come from within the sensor. A laser-beam remote sensing system is an active sensor that sends out a beam of light with a known wavelength and frequency. This beam […]