Towards digital computer simulation of the dynamics of flexible spacecraft

Software design for digital computer simulation of the dynamics of flexible spacecraft equipped with actuators and sensors, should take into account two properties of the overall system: (i) s.ampled-data control of the spacecraft leads to discontinuous inputs (forcing functions) in the differential equations of motion, thereby requiring...

Improvement of the superposition of geographical data in KOSMOSS

Since mid 1982, the Royal Netherlands Meteorological Institute KNMI has to its possession a ground station (KOSMOSS), which receives and processes high resolution imagery, acquired from Tiros-N type weather satellites. To determine the weather positions in the images, the ground station is equipped with the capability to superpose, in real time,...